MECH FLOW SUPPLIES

Malleable Iron Ductile Iron Valves Cast Bronze

Pipe Fittings JINAN MEIDE CASTING CO., LTD.
Grooved Fittings JINAN MEIDE CASTING CO., LTD. JINAN MEIDE CASTING CO., LTD.
Fittings JINAN MEIDE CASTING CO., LTD.

and Couplings

Electrical Malleable Iron Ductile Iron Pipe Fittings Pipe Nipples

Power Fittings JINAN MEIDE CASTING CO., LTD.
Pipe Clamps JINAN MEIDE CASTING CO., LTD.
Cast Iron Pipe Fittings
JINAN MEIDE CASTING CO., LTD. JINAN MEIDE CASTING CO., LTD.

JINAN MEIDE CASTING CO., LTD.

Address: Pingyin Industrial Park, Meigui Zone,
Jinan Meide Technopark, Jinan, China 250400
Phone: (86)531 87885036 87879384
Fax: (86)531 87879387
Email: info@meide-casting.com
Http: //www.meide-casting.com

UPDATED 02/2016
Valves
JINAN MEIDE CASTING CO., LTD.
American Standard
More than
50 years of
Foundry
Experience
 American Valves 01

Company
Profile

Jinan Meide Casting Co. Ltd. was established in 1962. We organize the whole produc tion process in
In the past decades, Jinan Meide has seized each accordance with ISO 9001 and ISO 14001. It has also
opportunity to consolidate its strength, and has finally the most complete certificates in the PVF industry,
developed into what it is today, a large-scale enterprise including UL/FM/NSF of US, CRN/cUL of Canada,
group with advanced technology, equipment and DVGW/TUV/CE/VdS of Germany, BSI/LPCB of UK, SII of
strong comprehensive strength, known for its complete Israel, JIS of Japan, ABNT of Brazil, GOST-R of Russia,
range of products, large producing capacity, high CNBOP of Poland, KS of South Korea, TSE of Turkey, PSB
quality and strong R&D strength. The company owns of Singapore, SIRIM of Malaysia, SABS of South Africa
altogether one main factory, three branch factories, etc. The products are well distributed in more than 130
two independent accounting steel pipe companys, and countries and regions.
a science & technology park.
As an industry leader and key high-tech enterprise of
The company is the largest manufacturer in the fitting the national torch plan, the company attaches great
industry with the most complete range of products, importance to environmental protection, energy-
supplying malleable iron fittings, grooved fittings, saving and emission-reduction. US-EEC recognizes
grooved couplings, valves, cast iron fittings, ductile iron MECH brand malleable iron pipe fittings as “the
fittings, steel pipe nipples and couplings, stainless steel product to promote for the technology exchange of
nipples, brass pipe nipples, cast bronze fittings, steel environmental protection”. Protecting the environment
pipes, pipe hangers and supports, electric fittings, etc. is the duty of the company.

Over 50 years, Jinan Meide has been a trusted name Customer satisfaction has always been the company’s
in piping solutions by offering high-quality products, top objective, and we constantly stick to the principle:
service and support to the PVF industry continuously. to provide customers with a value-added solution
We provide expertise and product solutions for a wide rather than simply delivering products.
range of applications, plumbing, mechanical, industrial,
air-conditioning and refrigeration, mining, oil, gas, fire
protection, equipment and power system. Many of the
company’s application technology are advanced in the
world, with more than 20 patents registered each year,
and the company has presided over and participated in
the drafting of many important national standards of
the industry.
 Steel Pipe Nipples
1997
Red Brass Pipe Nipples
1997

1995
1996
Cast Iron Fittings
1995
Self Export, Developed US and

1993
1994
European Market
1993
1992

1990
1991
Conduit Body
1990
1989

1987
Export, Main Market: Southeast Asia 1988
1987
1986
1985
1984
1983
1982
1981
1980
1979
1978
1977
1976
1975
1974
1973
Company

1970
1972
Malleable Iron Pipe Fittings 1971
1970
History
1969
1968
1967
1966
1965
1964
Business Started from Grey Iron Pot

1962
1963
1962
1961
1960
02
03
American Valves

2013
Steel Pipes
2013

2012
Extra-heavy Brass Pipe Nipples
2012
Hydraulic Control Valves

2011
2011
2010
2009

2007
Electric Power Fittings 2008
2007
2006
2005

2003
Bronze Fittings 2004
2003
2002

2001
Ductile Iron Pipe Fittings
2001
Ductile Iron Grooved Fittings
and Couplings

2000
Ball Valves
2000

1999
Pipe Hangers and Brackets
1999

1998
Malleable Iron Pipe Clamps
1998
04

State of Pattern
the Art
Equipment
High precision equipment is quality assurance.
Jinan Meide’s 8 factories are all equipped with the
most advanced facilities and equipment in the
industry. The main production facilities include Sinto
automatic molding line, Tokyu automatic molding
line, Chinese 416 automatic vertical molding line,
automatic molding sand mixers, cupola furnaces,
electric furnaces, water-cooled longevous cupola
furnaces, CNC vertical machining centers, CNC
machines, NC vertical lathes, radial drills, Jinan Tokyu AMF-111055

Meide proprietary automatic machines, hot-dipped

galvanization line, automatic box sealing line,
stereoscopic warehouse and so on.

Pouring
 American Valves 05

Core Making
Sand Mulling

Melting
DISA Sinto FCMX

Machining Epoxy Coating

Assembling
Warehouse
06

Jinan Meide is honored as the National enterprise

technical center and is capable and qualified to
conduct full series of tests and inspections including
chemical checking, etc.

Reliable Inspection facilities include: spectrometer, carbon

sulfur analyzer, metallurgical microscope, tensile

Quality strength testing equipment, pressure testing

equipment, adhesive force testing equipment, CMM,
Assurance hardness tester, etc.
From incoming inspection to finished product,
quality is checked and monitored in the whole
process. Each step of the manufacturing process is
carefully documented, regularly reviewed for revision
control and updating standard. Quality procedures
are constantly monitored and updated to assure
that only the highest and most consistent quality
products are supplied to our valued customers.

R & D

M etallurgic al M ic ros c ope

S p e c t r o me t e r
 American Valves 07

CMM P rojec tor Va l v e P r e s s u r e Te s t i n g Ma c h i n e ( H o r i z o n t a l )

Va lve P r e ssure Testing M achine (Vert ic al) E nd u r a n c e Te s t Ma c h i n e Va l v e P r e s s u r e Te s t i n g Ma c h i n e (Hori zont al )

08

Certificates
American Valves 09
 10

Resilient Wedge
For Fire Sprinkler System

Gate Valve
• Statement:
Gate valves serve to cut the medium flow in the piping system, widely used in the field of potable
water, water supply and drainage, sewage disposal, irrigation, air conditioning, fire protection as
well as chemical and energy industry.

• Features:
1. Material:
Ductile Iron ASTM A536, 65-45-12
Body,bonnet,wedge,handwheelandoperatingnutareallproducedinductileironmaterialwhich
provides guarantee for high strength and good corrosion resistance.
2. Triple O-ring Stem Seals
The lower O-ring isolates the stem thrust collar bearing area from the waterway. The upper two
O-rings can easily be replaced in the line while the valve is under pressure in the open position.
3. Stainless Steel Stem, Brass Thrust Collar and Bronze Wedge Nut
This life-tested MEIDE design has repeatedly proven its superior strength and abrasive
resistance.
4. Fusion Bonded Epoxy Coating • Body, Bonnet, Wedge & Operating
FusionbondedepoxycoatinginaccordancewithANSI/AWWAC550forbothinteriorandexterior Nut in Ductile Iron

surface which provides reliable corrosion resistance. • Triple O-ring Stem Seals

5. Long Service Life with Resilient Seat Cycling Test 1,000 times • Stainless Steel Stem and Brass Thrust Collar
The Valve has been subjected to 1,000 cycles of operation at a maximum rate of 6 cycles of • Bronze Alloy Wedge Nut
operation per minute from fully closed to fully open and from fully open to fully closed positions • Fusion Bonded Epoxy Coating
under cycled hydrostatic pressure.

XZ41X XZ81X XZ51X Z45XC Z45XC-2

Flanged Resilient OS&Y Grooved Resilient OS&YFlanged x Grooved Resilient Flanged Resilient NRS Flanged Resilient NRS
Gate Valve Gate Valve OS&Y Gate Valve Gate Valve Gate Valve with Post Flange
Page 11 Page 12 Page 13 Page 14 Page 15

Z85X IP WP
Grooved Resilient NRS Vertical Indicator Post Wall Indicator Post
Gate Valve Page 17 Page 18
Page 16
 American Valves 11

Flanged Resilient OS&Y

For Fire Sprinkler System

Gate Valve (XZ41X),
UL/FM Approved

MATERIAL SPECIFICATION

Part No. Part Standard Specification Options

1 Valve Body ASTM A536, 65-45-12
2 Resilient Wedge Disc ASTM A536, 65-45-12+EPDM
XZ41X
3 Stem Stainless Steel
4 Bonnet Gasket EPDM
5 Bonnet ASTM A536, 65-45-12
• Connection Ends: Flange to ASME B16.1 CL 125 6 Stem Packing EPDM

• Working Pressure: 300PSI 7 Yoke ASTM A536, 65-45-12

200PSI and 250PSI available upon request 8 Stem Bushing Brass Hpb59-1

• Temperature Range: 0℃- 80℃ 9 Gland ASTM A536, 65-45-12

10 Stem Nut Brass Hpb59-1 Bronze ZQSn5-5-5
• Coating: Fusion Bonded Epoxy Coating Complies with
ANSI/ AWWA C550 11 Handwheel ASTM A536, 65-45-12 Pressed Steel
12 Washer Brass Hpb59-1
13 Gland Nut Carbon Steel Zinc Plated AISI 304, AISI 316
14 Stud Carbon Steel Zinc Plated AISI 304, AISI 316
15 Flat Washer Carbon Steel Zinc Plated AISI 304, AISI 316
16 Nut Carbon Steel Zinc Plated AISI 304, AISI 316
17 O-Ring EPDM NBR

Note: For special material request other than standard specification, please indicate clearly on the inquiry or order list.
Size 2"~5" with 1pc of 1/2" bronze NPT tapping plug, size 6"~12 with 1pc of 3/4" bronze NPT tapping plug.

DN Dimensions(mm)
Inch mm L H1(Close) H2(Open) D D1 C n-ΦL
XZ41X-1
2" 50 178 348 400 152 120.7 16.0 4-Φ19.1
2.5" 65 190 373 440 178 139.7 17.5 4-Φ19.1
3" 80 203 408 490 191 152.4 19.1 4-Φ19.1
4" 100 229 471 573 229 190.5 19.1 8-Φ19.1
5" 125 254 541 665 254 215.9 19.1 8-Φ22.2
6" 150 267 601 755 279 241.3 19.1 8-Φ22.2
8" 200 292 774 975 343 298.5 22.2 8-Φ22.2
10" 250 330 939 1193 406 362.0 23.8 12-Φ25.4
12" 300 356 1065 1370 483 431.8 25.4 12-Φ25.4
 12

Grooved Resilient OS&Y

For Fire Sprinkler System

Gate Valve (XZ81X),

UL/FM Approved

MATERIAL SPECIFICATION

Part No. Part Standard Specification Options

1 Valve Body ASTM A536, 65-45-12
2 Resilient Wedge Disc ASTM A536, 65-45-12+EPDM
XZ81X 3 Stem Stainless Steel
4 Bonnet Gasket EPDM NBR
5 Bonnet ASTM A536, 65-45-12
• Connection Ends: Groove to AWWA C606 6 Washer Brass HPb59-1

• Working Pressure: 300PSI 7 Yoke ASTM A536, 65-45-12

200PSI and 250PSI available upon request 8 Stem Bushing Brass HPb59-1
9 Gland ASTM A536, 65-45-12
• Temperature Range: 0℃- 80℃
10 Stem Nut Brass HPb59-1 Bronze ZQSn5-5-5
• Coating: Fusion Bonded Epoxy Coating in accordance with
11 Handwheel ASTM A536, 65-45-12 Pressed Steel
ANSI/AWWA C550 or painting upon request
12 Washer Brass HPb59-1
13 Gland Nut Carbon Steel Zinc Plated AISI 304, AISI 316
14 Stud Carbon Steel Zinc Plated AISI 304, AISI 316
15 Flat Washer Carbon Steel Zinc Plated AISI 304, AISI 316
16 Nut Carbon Steel Zinc Plated AISI 304, AISI 316
17 O-Ring EPDM NBR

Note: For special material request other than standard specification, please indicate clearly on the inquiry or order list.
Size 2"~3" with 1pc of 3/8" bronze NPT tapping plug, size 4"~5" with 1pc of 1/2" bronze NPT tapping plug, size
6"~12 with 1pc of 3/4" bronze NPT tapping plug.

DN Dimensions(mm)
Inch mm L H1(Close) H2(Open) OD d A B
2" 50 178 348 400 60.3 57.15 15.88 7.92
2.5" 65 190 373 440 73 69.09 15.88 7.92
3" 80 203 408 490 88.9 84.94 15.88 7.92
4" 100 229 471 573 114.3 110.08 15.88 9.52
5" 125 254 541 665 141.3 137.03 15.88 9.52
6" 150 267 601 755 168.3 163.96 15.88 9.52
8" 200 292 774 975 219.1 214.4 19.05 11.13
10" 250 330 1029 1283 273 268.28 19.05 12.7
12" 300 356 1065 1370 323.9 318.29 19.05 12.7
 American Valves 13

Flanged x Grooved

For Fire Sprinkler System

Resilient OS&Y Gate Valve (XZ51X),
UL/FM Approved

MATERIAL SPECIFICATION

Part No. Part Standard Specification Options

1 Valve Body ASTM A536, 65-45-12
2 Resilient Wedge Disc ASTM A536, 65-45-12+EPDM
XZ51X 3 Stem Stainless Steel
4 Bonnet Gasket EPDM
5 Bonnet ASTM A536, 65-45-12
• Connection Ends: Flange to ASME B16.1 CL 125 6 Stem Packing EPDM
Groove to AWWA C606 7 Yoke ASTM A536, 65-45-12

• Working Pressure: 300PSI 8 Stem Bushing Brass Hpb59-1

200PSI and 250PSI available upon request 9 Gland ASTM A536, 65-45-12

• Temperature Range: 0℃- 80℃ 10 Stem Nut Brass Hpb59-1 Bronze ZQSn5-5-5
11 Handwheel ASTM A536, 65-45-12 Pressed Steel
• Coating: Fusion Bonded Epoxy Coating Complies with
12 Washer Brass Hpb59-1
ANSI/AWWA C550
13 Gland Nut Carbon Steel Zinc Plated AISI 304, AISI 316
14 Stud Carbon Steel Zinc Plated AISI 304, AISI 316
15 Flat Washer Carbon Steel Zinc Plated AISI 304, AISI 316
16 Bolt Carbon Steel Zinc Plated AISI 304, AISI 316
17 O-Ring EPDM NBR

Note: For special material request other than standard specification, please indicate clearly on the inquiry or order list.
Size 2"~5" with 1pc of 1/2" bronze NPT tapping plug, size 6"~12 with 1pc of 3/4" bronze NPT tapping plug.

DN Dimensions(mm)
Inch mm L H1(Close) H2(Open) D D1 C n-ΦL OD d A
2" 50 178 348 400 152 120.7 16.0 4-Φ19.1 60.3 57.15 15.88
2.5" 65 190 373 440 178 139.7 17.5 4-Φ19.1 73.0 69.09 15.88
3" 80 203 408 490 191 152.4 19.1 4-Φ19.1 88.9 84.94 15.88
4" 100 229 471 573 229 190.5 19.1 8-Φ19.1 114.3 110.08 15.88
5" 125 254 541 665 254 215.9 19.1 8-Φ22.2 141.3 137.03 15.88
6" 150 267 601 755 279 241.3 19.1 8-Φ22.2 168.3 163.96 15.88
8" 200 292 774 975 343 298.5 22.2 8-Φ22.2 219.1 214.4 19.05
10" 250 330 1029 1283 406 362.0 23.8 12-Φ25.4 273.0 268.28 19.05
12" 300 356 1065 1370 483 431.8 25.4 12-Φ25.4 323.9 318.29 19.05
 14

Flanged Resilient NRS

For Fire Sprinkler System

Gate Valve (Z45XC),

UL/FM Approved

MATERIAL SPECIFICATION

Part No. Part Standard Specification Options

1 Valve Body ASTM A536, 65-45-12
2 Resilient Wedge Disc ASTM A536, 65-45-12+EPDM
Z45XC
3 Stem Stainless Steel
4 Bonnet Gasket EPDM NBR
5 Bonnet ASTM A536, 65-45-12
• Connection Ends: Flange to ASME B16.1 CL 125 6 O-Ring NBR EPDM

• Working Pressure: 300PSI 7 Gland ASTM A536, 65-45-12

200PSI and 250PSI available upon request 8 Stem Cap ASTM A536, 65-45-12
9 Bolt Carbon Steel Zinc Plated AISI 304, AISI 316
• Temperature Range: 0℃- 80℃
10 Flat Washer Carbon Steel Zinc Plated AISI 304, AISI 316
• Coating: Fusion Bonded Epoxy Coating in accordance with
11 Ring Wiper EPDM NBR
ANSI/AWWA C550
12 O-Ring NBR EPDM
13 Nut Carbon Steel Zinc Plated AISI 304, AISI 316
14 Axis Guide Brass HPb59-1
15 Washer Brass HPb59-1
16 O-Ring NBR EPDM
17 Nut Carbon Steel Zinc Plated AISI 304, AISI 316
18 Wedge Nut Brass HPb59-1 Bronze ZQSn5-5-5

Note: For special material request other than standard specification, please indicate clearly on the inquiry or order list.
Size 2"~5" with 1pc of 1/2" bronze NPT tapping plug, size 6"~12 with 1pc of 3/4" bronze NPT tapping plug.

DN Dimensions(mm)
Z45X Z35X Inch mm L H(Z45X) H(Z45XC) D D1 C n-ΦL
2" 50 178 254 278 152 120.7 16 4-Φ19.1
2.5" 65 190 275 300 178 139.7 17.5 4-Φ19.1
3" 80 203 301 321 191 152.4 19.1 4-Φ19.1
4" 100 229 355 375 229 190.5 19.1 8-Φ19.1
5" 125 254 393 415 254 215.9 19.1 8-Φ22.2
6" 150 267 448 455 279 241.3 19.1 8-Φ22.2
8" 200 292 548 565 343 298.5 22.2 8-Φ22.2
10" 250 330 626 636 406 362 23.8 12-Φ25.4
12" 300 356 722 731 483 431.8 25.4 12-Φ25.4

Z05X Z55X
 American Valves 15

Flanged Resilient NRS Gate Valve

For Fire Sprinkler System

with Post Flange (Z45XC-2),
UL/FM Approved

MATERIAL SPECIFICATION

Part No. Part Standard Specification Options

1 Valve Body ASTM A536, 65-45-12
2 Resilient Wedge Disc ASTM A536, 65-45-12+EPDM
Z45XC-2
3 Stem Stainless Steel
4 Bonnet Gasket EPDM NBR
5 Bonnet ASTM A536, 65-45-12
• Connection Ends: Flange to ASME B16.1 CL 125 6 O-Ring NBR EPDM

• Working Pressure: 300PSI 7 Gland ASTM A536, 65-45-12

200PSI and 250PSI available upon request 8 Post Flange ASTM A536, 65-45-12
9 Square Operating Nut ASTM A536, 65-45-12
• Temperature Range: 0℃- 80℃
10 Bolt Carbon Steel Zinc Plated AISI 304, AISI 316
• Coating: Fusion Bonded Epoxy Coating in accordance with
11 Flat Washer Carbon Steel Zinc Plated AISI 304, AISI 316
ANSI/AWWA C550
12 Nut Carbon Steel Zinc Plated AISI 304, AISI 316
13 Flat Washer Carbon Steel Zinc Plated AISI 304, AISI 316
14 Ring Wiper EPDM NBR
15 O-Ring NBR EPDM
16 Axis Guide Brass Hpb59-1
17 Washer Brass Hpb59-1
18 O-Ring NBR EPDM
19 Nut Carbon Steel Zinc Plated AISI 304, AISI 316
20 Wedge Nut Brass Hpb59-1 Bronze ZQSn5-5-5

Note: For special material request other than standard specification, please indicate clearly on the inquiry or order list.
Size 4"~5" with 1pc of 1/2" bronze NPT tapping plug, size 6"~12 with 1pc of 3/4" bronze NPT tapping plug.

Z35XC-2 Z85XC-2
DN Dimensions(mm)
Inch mm L H D D1 C n-ΦL
4" 100 229 395 229 190.5 19.1 8-Φ19.1
5" 125 254 432 254 215.9 19.1 8-Φ22.2
6" 150 267 475 279 241.3 19.1 8-Φ22.2
8" 200 292 585 343 298.5 22.2 8-Φ22.2
10" 250 330 656 406 362 23.8 12-Φ25.4
12" 300 356 751 483 431.8 25.4 12-Φ25.4

Z05XC-2
 16

Grooved Resilient NRS

For Fire Sprinkler System

Gate Valve (Z85X),

UL/FM Approved

MATERIAL SPECIFICATION

Part No. Part Standard Specification Options

1 Valve Body ASTM A536, 65-45-12
2 Resilient Wedge Disc ASTM A536, 65-45-12+EPDM
Z85X
3 Stem Stainless Steel
4 Bonnet Gasket EPDM NBR
5 Bonnet ASTM A536,65-45-12
• Connection Ends: Groove to AWWA C606
6 O-Ring NBR EPDM
• Working Pressure: 300PSI 7 Gland ASTM A536,65-45-12
200PSI and 250PSI available upon request 8 Handwheel ASTM A536,65-45-12 Pressed Steel
• Temperature Range: 0℃- 80℃ 9 Bolt Carbon Steel Zinc Plated AISI 304, AISI 316

• Coating: Fusion Bonded Epoxy Coating in accordance with 10 Flat Washer Carbon Steel Zinc Plated AISI 304, AISI 316

ANSI/AWWA C550 or painting upon request 11 Ring Wiper EPDM NBR

12 O-Ring NBR EPDM
13 Nut Carbon Steel Zinc Plated AISI 304, AISI 316
14 Axis Guide Brass HPb59-1
15 Washer Brass HPb59-1
16 O-Ring NBR EPDM
17 Nut Carbon Steel Zinc Plated AISI 304, AISI 316
18 Wedge Nut Brass HPb59-1 Bronze ZQSn5-5-5

Note: For special material request other than standard specification, please indicate clearly on the inquiry or order list.
Size 2"~3" with 1pc of 3/8" bronze NPT tapping plug, size 4"~5" with 1pc of 1/2" bronze NPT tapping plug, size
6"~12 with 1pc of 3/4" bronze NPT tapping plug.

DN Dimensions(mm)
Inch mm L H OD d A B
2" 50 178 254 60.3 57.15 15.88 7.92
2.5" 65 190 275 73 69.09 15.88 7.92
3" 80 203 301 88.9 84.94 15.88 7.92
4" 100 229 355 114.3 110.08 15.88 9.52
5" 125 254 393 141.3 137.03 15.88 9.52
6" 150 267 448 168.3 163.96 15.88 9.52
8" 200 292 548 219.1 214.4 19.05 11.13
10" 250 330 626 273 268.28 19.05 12.7
12" 300 356 722 323.9 318.29 19.05 12.7
 American Valves 17

Vertical Indicator Post (IP),

For Fire Sprinkler System

UL/FM Approved
MATERIAL SPECIFICATION

Part No. Part Standard Specification

1 Hex Nut Carbon Steel Zinc Plated
2 Hex Bolt Carbon Steel Zinc Plated
3 Socket ASTM A536, 65-45-12
4 Cotter Pin AISI 304
5 Base Flange Cast Iron ASTM A126 Class B
6 Hex Bolt Carbon Steel Zinc Plated
7 Hex Nut Carbon Steel Zinc Plated
8 Standpipe Carbon Steel ASTM A53
9 Stem 1" Square Carbon Steel AISI 1045
10 Body Cast Iron ASTM A126 Class B
11 Locking Wrench ASTM A536, 65-45-12
12 Target Carrier Nut AISI 304
13 Hex Bolt Carbon Steel Zinc Plated
14 Hex Nut Carbon Steel Zinc Plated
15 Hex Bolt Carbon Steel Zinc Plated
16 Target Cast Aluminum
17 Window Class Plexiglass
18 Gasket EPDM
19 Operating Nut AISI 304
20 Top Section Cast Iron ASTM A126 Class B
21 Snap Ring AISI 1066
22 Plug Malleable Iron

IP 23 Square Nut Carbon Steel Zinc Plated

24 Hex Bolt Carbon Steel Zinc Plated

Field Adjustment:
• Statement: 1.Remove the Top Section from the top of the Indicator Post assembly;
2.Cut the required stem length and adjust the Standpipe to match up to the ground line;
Vertical indicator post provides a means to operate a
3.Set the "OPEN" and "SHUT" targets for the appropriate valve size;
buried or otherwise inaccessible valve and able to indicate 4.Reattach the Top Section to the top of the Indicator Post assembly.
the open or shut position of the valve.
• Coating:
Fusion Bonded Epoxy Coating in accordance with
ANSI/AWWA C550
 18

Wall Indicator Post (WP),

For Fire Sprinkler System

UL/FM Approved

MATERIAL SPECIFICATION

Part No. Part Standard Specification

1 Body Cast Iron ASTM A126 Class B
WP
2 Plug Malleable Iron
3 Square Nut Carbon Steel Zinc Plated
4 Hex Bolt Carbon Steel Zinc Plated
• Statement:
Wall indicator post provides a means to operate a valve installed 5 Cover Cast Iron ASTM A126 Class B

behind a wall and able to indicate the open or shut position of the 6 Hand wheel ASTM A536, 65-45-12
valve. 7 Eye Bolt Carbon Steel Zinc Plated

• Coating: 8 Gasket Carbon Steel Zinc Plated

Fusion Bonded Epoxy Coating in accordance with 9 Snap Ring AISI 1066
ANSI/AWWA C550 10 Operating NUT AISI 304
11 Gasket EPDM
12 Window Class Plexiglass
13 Target Cast Aluminum
14 Hex Bolt Carbon Steel Zinc Plated
15 Hex Bolt Carbon Steel Zinc Plated
16 Hex Nut Carbon Steel Zinc Plated
17 Target Carrier Nut AISI 304
18 Hex Nut Carbon Steel Zinc Plated
19 Hex Bolt Carbon Steel Zinc Plated
20 Stem 1" Square Carbon Steel AISI 1045
21 Cotter Pin AISI 304
22 Socket ASTM A536, 65-45-12

Note: For special material request other than standard specification, please indicate clearly on the inquiry or order list;
 American Valves 19

Resilient Centerline

For Fire Sprinkler System

Butterfly Valve
• Statement:
Resilient centerline butterfly valves usually serve to cut off medium flow in the piping system,
widelyappliedinthefieldofpotablewater,watersupplyanddrainage,sewagedisposal,irrigation,
airconditioning,fireprotectionaswellaschemicalandenergyindustry.Thedesignofthebutterfly
valves, however, makes it also suitable to serve as adjusting valve.

• Features:
1. Material:
Body is produced in ductile iron material (ASTM A536, 65-45-12) which provides guarantee for
high strength and good corrosion resistance.
Different options of the disc and seat, e.g. disc of DI nickel or nylon 11 coated, different series of
stainless steel, Al-bronze, seat in EPDM, NBR or Fluororubber, makes it suitable to be applied
under different working conditions.
2. Design:
Universal flange connection to EN 1092 PN6/10/16, ASME B16.1 CL 125, ASME B16.5 CL 150,
GB9113, JIS B2112 10K, AS 2129 Table E, BS 10 Table D/E.
Different options of operation including lever handle, gear box, gear box with tamper switch,
electric drive, and pneumatic drive, etc.
Differentoptionsofrubberseatincludinginsertrubberseat,rubbervulcanizedonvalvebodyand
boot rubber seat. • Ductile Iron Valve Body

3. Coating • Stainless Steel Stem

Fusion bonded epoxy coating provides reliable corrosion resistance. • Fusion Bonded Epoxy Coating
To achieve higher corrosion resistance, factory is also able to supply Nylon 11 coated disc. Nylon • Disc: DI, Stainless Steel or Al-bronze
11 coating is thermoplastic plant coating approved by USDA with high corrosion resistance and
• Seat: EPDM/NBR/Fluororubber with backing
antisepsis which can be applied where there is strict requirement for anti-corrosion.

XD381X D81X4 XD371X

Grooved Butterfly Valve Grooved Butterfly Valve Wafer Butterfly Valve
with Tamper Switch Page 21 with Tamper Switch
Page 20 Page 22

Two-Piece Stem Pinless Butterfly Valves Kv Value

DN
10° 20° 30° 40° 50° 60° 70° 80° 90°
Inch mm
2" 50 0.17 4 8 15 23 46 61 99 125
2.5" 65 0.35 7 13 22 36 72 91 151 195
3" 80 0.52 10 19 33 54 108 138 225 281
4" 100 0.69 15 36 63 104 203 264 441 510
5" 125 1.70 39 76 134 216 424 541 865 973
6" 150 2.60 77 125 216 355 692 891 1427 1687
8" 200 3.50 128 216 363 606 1125 1514 2357 2811
XD371XL 10" 250 4.30 201 337 580 995 1860 2379 3720 4325
12" 300 5.20 296 476 865 1384 2682 3503 4325 6488
Lugged Wafer Butterfly Valve
with Tamper Switch
One-Piece Stem Pinless Butterfly Valves Kv Value
Page 23
DN
10° 20° 30° 40° 50° 60° 70° 80° 90°
Inch mm
2" 50 0.05 3 6 13 23 38 61 91 99
2.5" 65 0.09 5 10 22 39 65 103 154 170
3" 80 0.17 8 16 34 61 100 158 238 261
4" 100 0.26 15 31 67 120 199 315 472 519
5" 125 0.43 25 53 115 205 339 536 804 884
6" 150 0.69 29 82 132 222 365 611 998 1366
8" 200 2 48 133 217 365 599 1002 1637 1873
10" 250 3 75 206 333 566 928 1552 2535 2901
12" 300 3 132 361 589 990 1625 2718 4439 5041
 20

Grooved Butterfly Valve

For Fire Sprinkler System

with Tamper Switch (XD381X),

UL Listed

MATERIAL SPECIFICATION

Part No. Part Standard Specification Options

1 Valve Body ASTM A536, 65-45-12

2 Disc ASTM A536, 65-45-12+EPDM ASTM A536, 65-45-12+NBR

3 O-Ring NBR EPDM

4 Stem Stainless Steel

XD381X 5 O-Ring NBR EPDM

6 Stem Stainless Steel

7 Signal Gear Box ASTM A536, 65-45-12

• Design Standard: MSS SP-67
Note: For special material request other than standard specification, please indicate clearly on the inquiry or order list.
• Connection Ends: Groove to AWWA C606
• Top Flange Standard: ISO 5211
Stem drive by keys, parallel or diagonal square or flat head
• Working Pressure: 300PSI SWITCH WIRING DIAGRAM

175PSI, 200PSI and 250PSI available upon request Open (Red)

• Temperature Range: 0℃- 80℃ Fire Alarm Control Common (White) Closed (Black) End of Line Resistor
Panel Supervisory Circuit or Next Device
• Coating: Fusion Bonded Epoxy Coating in accordance with
ANSI/AWWA C550 or painting upon request
Actuator Case Ground (Yellow/Green Double Color)

Open (Yellow)

Common (Green) Closed (Blue) Aux. Device

Voltage Source
(Bell or Horn)

DN Dimensions(mm)

Inch mm A B C ΦD ΦF ΦG L1 L2 L ΦK H H1 H2 H3 J ΦM Φ2 ISO 5211

2" 50 89 65 81 50.3 60.3 57.15 15.88 7.93 32 90 208 151 65 108 147 150 14 F07

2.5" 65 102 71 97 60.8 73.0 69.09 15.88 7.93 32 90 208 151 65 108 147 150 14 F07

3" 80 109 81 97 76 88.9 84.94 15.88 7.93 32 90 208 151 65 108 147 150 14 F07

4" 100 128 95 116 98.5 114.3 110.08 15.88 9.53 32 90 208 151 65 108 147 150 16 F07

5" 125 141 111 148 122.6 141.3 137.03 15.88 9.53 32 90 208 151 65 108 147 150 16 F07

6" 150 153 133 148 148 168.3 163.96 15.88 9.53 32 90 208 151 65 108 147 150 20 F07

8" 200 184 164 133 199 219.1 214.4 19.05 11.10 45 125 298 223 77 121 184 200 26 F10

10" 250 216 196 159 252 273.0 268.28 19.05 12.70 45 125 298 223 77 121 184 200 26 F10

12" 300 254 226 165 300.5 323.9 318.29 19.05 12.70 45 125 299 224 77 121 184 250 28 F10

Note: Valve must not be installed with disc in full open position. Disc must be partly closed so that no part is protruding beyond end of valve body.
 American Valves 21

Grooved Butterfly Valve

For Fire Sprinkler System

(D81X4, D381X4)

MATERIAL SPECIFICATION

Part No. Part Standard Specification Options

1 Valve Body ASTM A536, 65-45-12

2 Disc ASTM A536, 65-45-12+EPDM ASTM A536, 65-45-12+NBR

3 O-Ring NBR EPDM

D81X4 4 Stem Stainless Steel

• Design Standard: MSS SP-67 5 O-Ring NBR EPDM

• Connection Ends: Groove to AWWA C606 6 Stem Stainless Steel

• Top Flange Standard: ISO 5211 7 Lever ASTM A536, 65-45-12 Aluminum

Stem drive by keys, parallel or diagonal square or flat head 8 Gear Box ASTM A536, 65-45-12
• Working Pressure: 300PSI Note: For special material request other than standard specification, please indicate clearly on the inquiry or order list.
175PSI, 200PSI and 250PSI available upon request
• Temperature Range: 0℃- 80℃
• Coating: Fusion Bonded Epoxy Coating in accordance with
ANSI/AWWA C550 or painting upon request

D381X4

DN Dimensions(mm)

Inch mm A B C ΦD ΦF ΦG L1 L2 L ΦK H H1 H2 J ΦM Φ2 ISO 5211 ΦE N-Φ1

2" 50 89 65 81 50.3 60.3 57.15 15.88 7.93 32 90 206 158 52 114 150 14 F07 70 4-Φ10

2.5" 65 102 71 97 60.8 73.0 69.09 15.88 7.93 32 90 206 158 52 114 150 14 F07 70 4-Φ10

3" 80 109 81 97 76 88.9 84.94 15.88 7.93 32 90 206 158 52 114 150 14 F07 70 4-Φ10

4" 100 128 95 116 98.5 114.3 110.08 15.88 9.53 32 90 206 158 52 114 150 16 F07 70 4-Φ10

5" 125 141 111 148 122.6 141.3 137.03 15.88 9.53 32 90 206 158 52 114 150 16 F07 70 4-Φ10

6" 150 153 133 148 148 168.3 163.96 15.88 9.53 32 90 206 158 52 114 150 20 F07 70 4-Φ10

8" 200 184 164 133 199 219.1 214.4 19.05 11.10 45 125 310 239 69 167 300 26 F10 102 4-Φ12

10" 250 216 196 159 252 273.0 268.28 19.05 12.70 45 125 310 239 69 167 300 26 F10 102 4-Φ12

12" 300 254 226 165 300.5 323.9 318.29 19.05 12.70 45 125 307 229 73 190 300 28 F10 102 4-Φ12

Note: Valve must not be installed with disc in full open position. Disc must be partly closed so that no part is protruding beyond end of valve body.
 22

Wafer Butterfly Valve

For Fire Sprinkler System

with Tamper Switch (XD371X),

UL Listed

MATERIAL SPECIFICATION

Part No. Part Standard Specification Options

1 Valve Body ASTM A536, 65-45-12

NBR/Fluororubber&Backing
2 Seat EPDM & Backing EPDM/NBR Vulcanized on Valve Body
XD371X Soft Seat in EPDM/NBR

3 Disc ASTM A536, 65-45-12 AISI 304, AISI 316, AL-Bronze C95400

4 Stem Stainless Steel

• Design Standard: MSS SP-67
5 O-Ring NBR EPDM
• Connection Ends: ASME B16.1 CL 125, ASME B16.5 CL 150
6 Bushing PTFE Nylon 1010
• Top Flange Standard: ISO 5211
7 Signal Gear Box ASTM A536, 65-45-12
Stem drive by keys, parallel or diagonal square or flat head
• Working Pressure: 250PSI Note: For special material request other than standard specification, please indicate clearly on the inquiry or order list.
175PSI, 200PSI and 300PSI available upon request
• Temperature Range: 0℃- 80℃
• Coating: Fusion Bonded Epoxy Coating in accordance with SWITCH WIRING DIAGRAM

ANSI/AWWA C550 Open (Red)

Fire Alarm Control Common (White) Closed (Black) End of Line Resistor
Panel Supervisory Circuit or Next Device

Actuator Case Ground (Yellow/Green Double Color)

Open (Yellow)

Common (Green) Closed (Blue) Aux. Device

Voltage Source
(Bell or Horn)

DN Dimensions(mm)

Inch mm A B M H H1 H2 H3 K G ØD C Ø2 L ISO 5211

2" 50 140.5 64.5 150 208 151 65 108 90 59 53.9 43 14 32 F07

2.5" 65 153 72 150 208 151 65 108 90 59 65.2 46 14 32 F07

3" 80 157.5 86 150 208 151 65 108 90 59 79.7 46 14 32 F07

4" 100 176 100 150 208 151 65 108 90 59 105 52 16 32 F07

5" 125 191 112 150 208 151 65 108 90 59 130 56 16 32 F07

6" 150 202.5 128 150 208 151 65 108 90 59 156 56 20 32 F07

8" 200 243.5 162 200 298 223 77 121 125 75 207 60 26 45 F10

10" 250 273 194 200 298 223 77 121 125 75 253.3 68 26 45 F10

12" 300 311 223 250 299 224 77 121 125 75 301.9 78 28 45 F10
 American Valves 23

Lugged Wafer Butterfly Valve

For Fire Sprinkler System

with Tamper Switch (XD371XL),
UL Listed

MATERIAL SPECIFICATION

Part No. Part Standard Specification Options

1 Valve Body ASTM A536, 65-45-12

NBR/Fluororubber&Backing
2 Seat EPDM & Backing EPDM/NBR Vulcanized on Valve Body
XD371XL Soft Seat in EPDM/NBR

3 Disc ASTM A536, 65-45-12 AISI 304, AISI 316, AL-Bronze C95400

4 Stem Stainless Steel

• Design Standard: MSS SP-67
5 O-Ring NBR EPDM
• Connection Ends: ASME B16.1 CL 125, ASME B16.5 CL 150
6 Bushing PTFE Nylon 1010
• Top Flange Standard: ISO 5211
7 Signal Gear Box ASTM A536, 65-45-12
Stem drive by keys, parallel or diagonal square or flat head
• Working Pressure: 250PSI Note: For special material request other than standard specification, please indicate clearly on the inquiry or order list.

175PSI, 200PSI and 300PSI available upon request

• Temperature Range: 0℃- 80℃
SWITCH WIRING DIAGRAM
• Coating: Fusion Bonded Epoxy Coating in accordance with
Open (Red)
ANSI/AWWA C550
Fire Alarm Control Common (White) Closed (Black) End of Line Resistor
Panel Supervisory Circuit or Next Device

Actuator Case Ground (Yellow/Green Double Color)

Open (Yellow)

Common (Green) Closed (Blue) Aux. Device

Voltage Source
(Bell or Horn)

DN Dimensions(mm)
Inch mm A B C N-M ØD1 M H H1 H2 H3 K G ØD Ø2 L ISO 5211
2" 50 140.5 64.5 43 4-5/8 120.7 150 208 151 65 108 90 59 53.9 14 32 F07
2.5" 65 153 72 46 4-5/8 139.7 150 208 151 65 108 90 59 65.2 14 32 F07
3" 80 157.5 86 46 4-5/8 152.4 150 208 151 65 108 90 59 79.7 14 32 F07
4" 100 176 100 52 8-5/8 190.5 150 208 151 65 108 90 59 105 16 32 F07
5" 125 191 112 56 8-3/4 215.9 150 208 151 65 108 90 59 129.8 16 32 F07
6" 150 202.5 128 56 8-3/4 241.3 150 208 151 65 108 90 59 155.8 20 32 F07
8" 200 243.5 162 60 8-3/4 298.5 200 298 223 77 121 125 75 207 26 45 F10
10" 250 273 194 68 12-7/8 362 200 298 223 77 121 125 75 253.3 26 45 F10
12" 300 311 223 78 12-7/8 431.8 250 299 224 77 121 125 75 301.9 28 45 F10
 24

Check Valve
For Fire Sprinkler System

• Statement:
Check valves serve to prevent the backflow of medium in the piping system for
protection of important equipments, widely used in the field of potable water, water
supply and drainage, sewage disposal, irrigation, air conditioning, fire protection as well
as chemical and energy industry.

• Features:
1. Material: Ductile Iron ASTM A536, 65-45-12
Valve body, bonnet, disc are all produced in ductile iron material which provides
guarantee for high strength and good corrosion resistance.
2. Fusion Bonded Epoxy Coating
Fusion bonded epoxy coating in accordance with ANSI/AWWA C550 for both interior
and exterior surface which provides reliable corrosion resistance.
3. Small Hydraulic Friction Loss with Reasonable Structure Design
• Body & Bonnet: Ductile Iron

• Disc: D.I.+EPDM or D.I. + Bronze

or Stainless Steel Sealing

• Bronze or Stainless Steel Seat

• Fusion Bonded Epoxy Coating

H44X H84X
Flanged Resilient Swing Grooved Resilient Swing
Check Valve Check Valve
Page 25 Page 26
 American Valves 25

Flanged Resilient Swing Check Valve

For Fire Sprinkler System

(H44X), UL/FM Approved

MATERIAL SPECIFICATION

Part No. Part Standard Specification Options

1 Valve Body ASTM A536, 65-45-12
2 Bonnet ASTM A536, 65-45-12
H44X
3 Eye Bolt Carbon Steel Zinc Plated
4 O-Ring NBR EPDM
5 Hinge Pin AISI 304

• Connection Ends: Flange to ASME B16.1 CL 125 6 Hinge Bushing Brass ASTM B16 C36000/Hpb63-3
Bronze ASTM B62 AISI 304, AISI 316 Pressed Fit or
• Working Pressure: 300PSI 7 Seat Ring
C83600/ZQSn5-5-5(Pressed Fit) Threaded
200PSI and 250PSI available upon request
8 Disc Seat Bolt AISI 304
• Temperature Range: 0℃- 80℃ 9 Retainer Washer Bronze ASTM B62 C83600/ZQSn5-5-5
• Coating: Fusion Bonded Epoxy Coating in accordance with 10 Disc Sealing Ring EPDM AISI 304, AISI 316, Bronze ASTM B62
ANSI/AWWA C550 11 Disc ASTM A536, 65-45-12
12 Clapper Arm ASTM A536, 65-45-12
13 Stud Bushing Brass ASTM B16 C36000/Hpb63-3
14 O-Ring NBR EPDM
15 Nut AISI 304 AISI 316

Note: For special material request other than standard specification, please indicate clearly on the inquiry or order list.

DN Dimensions(mm)
Inch mm L D D1 b n-Φd H
2" 50 203 152 120.5 16 4-Φ19.1 133
2.5" 65 254 178 139.5 17.5 4-Φ19.1 150
3" 80 278 191 152.5 19 4-Φ19.1 150
4" 100 330 229 190.5 24 8-Φ19.1 218
6" 150 406 279 241.5 25.5 8-Φ22.2 290
8" 200 495 343 298.5 28.5 8-Φ22.2 330
10" 250 622 406 362 30.5 12-Φ25.4 350
12" 300 660 483 432 32 12-Φ25.4 376
 26

Grooved Resilient
For Fire Sprinkler System

Swing Check Valve (H84X),

UL/FM Approved

MATERIAL SPECIFICATION

Part No. Part Standard Specification Options

1 Valve Body ASTM A536, 65-45-12

H84X 2 Hinge Pin AISI 420

3 Spring AISI 304 AISI 316

4 Eye Bolt Carbon Steel Zinc Plated

• Connection Ends: Groove to AWWA C606 DN50-100 AISI 304
5 Disc AISI 304
DN150-300 ASTM A536, 65-45-12
• Working Pressure: 300PSI
200PSI and 250PSI available upon request 6 Disc Sealing Ring EPDM

• Temperature Range: 0℃- 80℃ 7 Seat Ring ASTM B62 C83600 (Pressed Fit) AISI 304, AISI 316 Pressed Fit or Threaded

• Coating: Fusion Bonded Epoxy Coating in accordance with 8 Plug Malleable Iron Galvanized Bronze ASTM B584
ANSI/AWWA C550 or painting upon request 9 Plug Malleable Iron Galvanized Bronze ASTM B584

10 Plug Malleable Iron Galvanized Bronze ASTM B584

11 Plug Malleable Iron Galvanized Bronze ASTM B584

12 Bolt AISI 304 AISI 316

13 Washer AISI 304 AISI 316

14 Nut AISI 304 AISI 316

Note: For special material request other than standard specification, please indicate clearly on the inquiry or order list.

DN Dimensions(mm)
P3
Inch mm L D1 D2 B C P1 P2
Standard Option
2" 50 171 57.15 60.3 7.93 15.88 1/2-14NPT 1/2-14NPT 1-11.5NPT 1/4-18NPT
21/2" 65 184 69.09 73.0 7.93 15.88 1/2-14NPT 1/2-14NPT 1 1/4-11.5NPT 1/4-18NPT
3" 80 197 84.94 88.9 7.93 15.88 1/2-14NPT 1/2-14NPT 1 1/4-11.5NPT 1/4-18NPT
4" 100 210 110.08 114.3 9.53 15.88 1/2-14NPT 1/2-14NPT 2-11.5NPT 1/4-18NPT
5" 125 248 137.03 141.3 9.53 15.88 1/2-14NPT 1/2-14NPT 2-11.5NPT 1/4-18NPT
6" 150 324 163.96 168.3 9.53 15.88 1/2-14NPT 1/2-14NPT 2-11.5NPT 1/4-18NPT
8" 200 371 214.40 219.1 11.13 19.05 1/2-14NPT 1/2-14NPT 2-11.5NPT 1/4-18NPT
10" 250 457 268.28 273.0 12.70 19.05 1/2-14NPT 1/2-14NPT 2-11.5NPT 1/4-18NPT
12" 300 535 318.29 323.9 12.70 19.05 1/2-14NPT 1/2-14NPT 2-11.5NPT 1/4-18NPT
 American Valves 27

Y-Type Strainer

For Fire Sprinkler System

• Statement:
Installed before relief valves, atmospheric valves, hydraulic control valves as well as other
equipments,strainersservetofilterouttheimpuritiesintheflowmediumforprotectionof
valves and equipments in the piping system.
• Features:
1. Material: Ductile Iron ASTM A536, 65-45-12
Valvebodyandcoverareproducedinductileironmaterialwhichprovidesguaranteefor
high strength and good corrosion resistance.
2. Different Options of Screen Mesh Specification
Different options of screen mesh specification available as per different service
conditions.
3. Fusion Bonded Epoxy Coating
FusionbondedepoxycoatinginaccordancewithANSI/AWWAC550forbothinteriorand
• Ductile Iron Body & Bonnet
exterior surface which provides reliable corrosion resistance.
• Stainless Steel Screen

• Fusion Bonded Epoxy Coating

• Gasket: EPDM or Graphite + Acanthopore Plate

V4 V8
Flanged Y-Type Strainer Grooved Y-Type Strainer
Page 28 Page 29
 28

Flanged Y-Type Strainer (V4),

For Fire Sprinkler System

UL Listed

V4 MATERIAL SPECIFICATION

Part No. Part Standard Specification Options

1 Valve Body ASTM A536 65-45-12

• Connection Ends: Flange to ASME B16.1 CL 125 2 Screen AISI 304 (Perforated)
AISI 304, AISI 316
(Perforated, Knitted, Double Screen)
• Working Pressure: 300PSI 3 Gasket Graphite + Acanthopore Plate EPDM
200PSI and 250PSI available upon request
4 Bonnet ASTM A536 65-45-12
• Temperature Range: -10℃- 200℃ graphite gasket 5 Plug Malleable Iron Galvanized Bronze ASTM B584
0℃- 80℃ rubber gasket
6 Bolt Carbon Steel Zinc Plated AISI 304, AISI 316
• Coating: Fusion Bonded Epoxy Coating in accordance with 7 Flat Washer Carbon Steel Zinc Plated AISI 304, AISI 316
ANSI/AWWA C550
STANDARD SCREEN

DN Hole Dia. Free Flow Area(%)

Sieve No.
Inch mm mm %
2"~2.5" 50~65 25 4 48
3"~4" 80~100 19 5 59
5" 125 14 6 63
6"~12" 150~300 13 6.3 64

Note: For special material request other than standard specification, please indicate clearly on the inquiry or order list.

DN Dimensions(mm)
Inch mm L D D1 b n-Φd H
2" 50 200 152 120.5 16 4-Φ19.1 155
2.5" 65 254 178 139.5 17.5 4-Φ19.1 165
3" 80 257 191 152.5 19 4-Φ19.1 180
4" 100 308 229 190.5 24 8-Φ19.1 229
5" 125 397 254 216 24 8-Φ22.2 285
6" 150 470 279 241.5 25.5 8-Φ22.2 311
8" 200 549 343 298.5 28.5 8-Φ22.2 394
10" 250 654 406 362 30.5 12-Φ25.4 487
12" 300 759 483 432 32 12-Φ25.4 547
 American Valves 29

Grooved Y-Type Strainer (V8),

For Fire Sprinkler System

UL Listed

V8 MATERIAL SPECIFICATION

Part No. Part Standard Specification Options

1 Valve Body ASTM A536, 65-45-12
2 Screen AISI 304 AISI 316
• Connection Ends: Groove to AWWA C606
3 Rigid Coupling ASTM A536, 65-45-12
• Working Pressure: 300PSI
4 Cap ASTM A536, 65-45-12
200PSI and 250PSI available upon request
5 Plug Malleable Iron Galvanized Bronze ASTM B584
• Temperature Range: 0℃- 80℃
• Coating: Fusion Bonded Epoxy Coating in accordance with STANDARD SCREEN
ANSI/AWWA C550 or painting upon request DN Hole Dia. Free Flow Area(%)
Sieve No.
Inch mm mm %
2"~2.5" 50~65 25 4 48
3"~4" 80~100 18 5 53
5" 125 13 6 58
6"~12" 150~300 12 6.3 56

Note: For special material request other than standard specification, please indicate clearly on the inquiry or order list.

DN Dimensions(mm)
Inch mm L OD d A B
2" 50 247.5 60.3 57.15 15.88 7.92
2.5" 65 273 73 69.09 15.88 7.92
3" 80 298.5 88.9 84.94 15.88 7.92
4" 100 362 114.3 110.08 15.88 9.52
5" 125 419 141.3 137.03 15.88 9.52
6" 150 470 168.3 163.96 15.88 9.52
8" 200 609.5 219.1 214.4 19.05 11.13
10" 250 686 273 268.28 19.05 12.7
12" 300 762 323.9 318.29 19.05 12.7
 30

Water Flow Indicator (ZSJZ)

For Fire Sprinkler System

MATERIAL SPECIFICATION

Part No. Part Standard Specification Options

1 Body ASTM A536, 65-45-12
ZSJZ 2 Bolt Carbon Steel Zinc Plated SS304, SS316
3 Lodicule Plastic
• Connection Ends: AWWA C606
4 Nut Carbon Steel Zinc Plated SS304, SS316
• Working Pressure: 300PSI 5 Gasket EPDM NBR
200PSI and 250PSI available upon request
Note: For special material request other than standard specification, please indicate clearly on the inquiry or order list.
• Temperature Range: 0℃ - 80℃
• Coating: Fusion Bonded Epoxy Coating in accordance with
ANSI/AWWA C550 DN Dimensions(mm)
Inch mm R A B C D
2" 50 60.3 62 48 36 120
2.5" 65 73 62 48 31 130
3" 80 88.9 62 48 36.5 145
4" 100 114.3 62 48 30.5 185
5" 125 141.3 62 48 36.5 221.5
6" 150 168.3 62 48 33 254
8" 200 219.1 62 48 36.5 300
 American Valves 31

Landing Valve(SN)

For Fire Sprinkler System

MATERIAL SPECIFICATION

Part No. Part Standard Specification

1 Body ASTM A536, 65-45-12
SN 2 Disc ASTM A536, 65-45-12
3 Steel Ball AISI 304
• Thread: ISO 7-1
4 Inner Hex Screw AISI 304
• Working Pressure: 300PSI 5 Stem AISI 420
200PSI and 250PSI available upon request 6 O-Ring NBR
• Temperature Range: 0℃ - 80℃ 7 Bonnet ASTM A536, 65-45-12

• Coating: Fusion Bonded Epoxy Coating in accordance with 8 O-Ring NBR

ANSI/AWWA C550 9 Handwheel ABS
10 Screw AISI 304

Note: For special material request other than standard specification, please indicate clearly on the inquiry or order list.

DN Dimensions(mm)
Inch mm H1 H2 L d1(Rc) d2 D(R)
2" 50 57.5 109.5 63 2 44.5 2
2.5" 65 71 109.3 71 21/2 58 21/2
 32

Wet Alarm Check Valve

For Fire Sprinkler System

• Statement:
The alarm check valve works as a check valve by preventing the reverse flow of water from the
system piping to the water supply. The valve is trimmed with a water bypass line, which has an
in-line swing check valve. The bypass line allows pressure surges to enter the system and to
be trapped above the alarm check valve's clapper without the clapper lifting and causing false
alarms.
When a significant flow of water occurs, such as from an open sprinkler, the alarm valve's
clapperliftsandallowswatertoenterthesystem.Simultaneously,waterentersanintermediate
chamber, which allows the water to activate an alarm either through a water motor alarm or
through a water pressure alarm. These alarms continue to sound until the flow of water is
stopped.

DN Dimensions(mm)
Equivalent Length
Inch mm OD
of Pipe (m)
3" 80 88.9 4.9
4" 100 114.3 7.9
6" 150 168.3 9.8
8" 200 219.1 8.2

6.0
RESSURE DDROP – PSI

5.0

4 0
4.0
PRESSURE

3.0

2.0
PR

1.0
0 9
0.9

0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
10 20 30 40 60 80 100 200 300 400 600 1000 2000 4000 6000 10000 20000

FLOW RATE – GPM

 American Valves 33

Grooved Wet Alarm Check Valve

For Fire Sprinkler System

(ZSFZ8X)

MATERIAL SPECIFICATION

Part No. Part Standard Specification Options

1 Valve Body ASTM A536, 65-45-12
2 Bonnet ASTM A536, 65-45-12
3 Pin AISI 304 AISI 316
4 Hex Bolt Carbon Steel Zinc Plated
ZSFZ8X
5 Gasket EPDM NBR
6 Hex Bolt AISI 304 AISI 316
• Connection Ends: Groove to AWWA C606
7 Gland Brass H62
• Working Pressure: 300PSI 8 Seat C83600
200PSI and 250PSI available upon request
9 O-Ring NBR EPDM
• Temperature Range: 0℃- 80℃ 10 Gasket EPDM
• Coating: Painting or Fusion Bonded Epoxy Coating in 11 Disc Brass H62
accordance with ANSI/AWWA C550 12 Plug AISI 304 AISI 316
13 Spring AISI 321

Note: For special material request other than standard specification, please indicate clearly on the inquiry or order list.

DN Dimensions(mm)
Inch mm OD A B ￠d ￠D F
3" 80 88.9 15.88 7.93 84.94 88.9 320.3
4" 100 114.3 15.88 9.53 110.08 114.3 382
6" 150 168.3 15.88 9.53 163.96 168.3 406.4
8" 200 219.1 19.05 11.1 214.4 219.1 446

External accessories
Part No. Part Part No. Part
1 Alarm 7 Check Valve
2 Pressure switch 8 Pressure gauge
3 Strainer 9 Ball valve
4 Decelerator 10 Ball valve
5 Pressure gauge 11 Ball valve
6 Ball valve 12 Drip valve
 34

Flanged Wet Alarm Check Valve

For Fire Sprinkler System

(ZSFZ4X)

MATERIAL SPECIFICATION

Part No. Part Standard Specification Options

1 Valve Body ASTM A536, 65-45-12
2 Bonnet ASTM A536, 65-45-12
3 Pin AISI304 AISI 316
4 Hex Bolt Carbon Steel Zinc Plated
ZSFZ4X 5 Gasket EPDM
6 Spring Washer SS304
• Connection Ends: Flange to ASME B16.1 CL 125 7 Hex Bolt SS304 AISI 316
• Working Pressure: 300PSI 8 Gland H62
200PSI and 250PSI available upon request 9 Seat C83600
10 O-Ring NBR EPDM
• Temperature Range: 0℃- 80℃
11 Disc Brass H62
• Coating: Fusion Bonded Epoxy Coating Complies with
12 Gasket EPDM
ANSI/AWWA C550 13 O-Ring NBR EPDM
14 Spring 1Cr18Ni9Ti
15 Washer PTFE
16 Plug 304
17 Washer PTFE
Note: For special material request other than standard specification, please indicate clearly on the inquiry or order list.

DN Dimensions(mm)
Inch mm A ￠B ￠c H
3" 80 241 80 200 235
4" 100 292 100 220 230
6" 150 356 150 285 298
8" 200 495 200 340 352

External accessories
Part No. Part Part No. Part
18 Pressure switch 24 Ball valve
19 Alarm 25 Check Valve
20 Decelerator 26 Strainer
21 Strainer 27 Water valve
22 Pressure gauge 28 Ball valve
23 Pressure gauge 29 Ball valve
 American Valves 35

Electric Inspector's Test Connection

For Fire Sprinkler System

(ZSPM-80-DX)

MATERIAL SPECIFICATION

Part No. Part Standard Specification

1 Test nozzle AISI 304
2 Outside Hex Bushing Malleable Iron Galvanized
3 Reducing Tee Malleable Iron Galvanized
4 Pressure Switch
5 Nexagon Nipple,Equal Malleable Iron Galvanized
6 Reducing Tee Malleable Iron Galvanized
ZSPM-80-DX
7 Solenoid Valves Brass
8 Pressure Gauge
9 Connector Brass
10 Ball Valve AISI 304
11 90° Elbow Malleable Iron Galvanized
12 Union With Brass Seat Malleable Iron Galvanized

Note: 1.For special material request other than standard specification, please indicate clearly on the inquiry or oder list.
2.Threads connection options available includes: ASME B1.20.1, ISO 7-1

Manual Inspector's Test Connection

(ZSPM-80-SA)

MATERIAL SPECIFICATION

Part No. Part Standard Specification

1 Test nozzle AISI 304
2 Outside Hex Bushing Malleable Iron Galvanized
3 Ball Valve AISI 304
ZSPM-80-SA 4 Nexagon Nipple,Equal Malleable Iron Galvanized
5 Reducing Tee Malleable Iron Galvanized
6 Connector Brass
7 Pressure Gauge

Note: 1.For special material request other than standard specification, please indicate clearly on the inquiry or oder list.
2.Threads connection options available includes: ASME B1.20.1, ISO 7-1
36
For Fire Sprinkler System
 American Valves 37

Hydraulic Control Valve

Cap Plug (Brass H62)

For Fire Sprinkler System

Up Bonnet (ASTM A536,65-45-12)

Up Gland (ASTM A536,65-45-12)

Diaphragm(EPDM)
Bottom Gland (ASTM A536,65-45-12)
• Statement Bushing (Brass H62)
The hydraulic control valve was initially originated in Holand, Israel Middle Bonnet (ASTM A536,65-45-12)
andDenmark, usedfor agricultural irrigation.Laterthe productwas
Stem (AISI 304)
introduced into the United Sates, Canada and Asian countries. It
was from the 1990s when the product first entered China, and ever Bolt (AISI 304)
since its entrance it gets rapidly developped and widely applied in Spring ( Stainless Steel 4Cr13)

different industrie aside from irrigation. Main Disc (ASTM A536,65-45-12)

Main Gasket (EPDM)
The hydraulic control valve produced by Jinan Meide is new style Gland of Main Disc (ASTM A536,65-45-12)
thatabsorbedtheessenceofotherwell-knownbrandswhichmakes Seat (AISI 304)

it better in energy saving, consumption reducing and accurate

adjustingachieving.TheMECHbrandhydrauliccontrolvalveshave Valve Body (ASTM A536,65-45-12)

been widely used in China, Europe and South East Asian countries
in pipe system of irrigation, water supplying, fire protection and Water Head Loss (psi)
air conditioning which has medium of water under 80℃ or other
medium with similar physical and chemical property as water.

• Specifications
Basic Valve: Y-Type Direct-flow
Connection Ends: Flange to ASME B16.1 CL 125
Temperature Range: 0℃- 80℃
Working Pressure: 300PSI
Testing Standard: API 598
DN50
DN65
• Flow Diagram of Basic Valve
Flow Rate (gpm)

DN80

DN100

DN125

DN150

DN200

DN250

DN300
DN350
DN400
DN450
DN500
DN600

DN 50 65 80 100 125 150 200 250 300 350 400 450 500 600

Kv 41 53 105 175 285 402 730 1160 1400 1770 3010 3225 3395 4272

DN Dimensions(mm)

Inch mm L H D D1 b n-ΦL

2" 50 206 170 152 120.5 16 4-Φ19.1

2.5" 65 211 195 178 139.5 17.5 4-Φ19.1

3" 80 249 215 191 152.5 19 4-Φ19.1

4" 100 320 255 229 190.5 24 8-Φ19.1

6" 150 414 360 279 241.5 25.5 8-Φ22.2

8" 200 500 450 343 298.5 28.5 8-Φ22.2

10" 250 605 550 406 362 30.5 12-Φ25.4

12" 300 724 645 483 432 32 12-Φ25.4

14" 350 734 700 533 476 35 12-Φ28.5

16" 400 991 790 597 540 36.5 16-Φ28.5

 38

Pressure Reducing Valve 1.Statement

SK720X Pressure Reducing Valve is a diaphragm type of hydraulic control valve driven by the hydraulic
For Fire Sprinkler System

pressure within the piping system. The function of the valve is to reduce the high pressure to the pre-set low
pressure,and despite the fluctuation of medium flow or pressure before the valve the pressure after the valve
will always remain stable and maintain the set pressure range.

2.Operational principle
SK720X Pressure Reducing Valve is controlled by pressure reducing pilot valve and equipped with pressure
reducing pilot valve, needle valve, mini strainer and ball valve, etc.
Undernormalconditions,waterflowcomescontinuouslyfromtheinletopeningtotheuppercavityroom(2)of
the basic valve through the needle valve (1); When the pressure before the pilot valve (3) is lower than its pre-
set value, the pilot valve will remain at full open position and the upper cavity room of the basic valve is not
able to get accumulating pressure. Under this condition, the disc of the basic valve will be open at the water
pressure from the inlet opening to allow water flow. The pressure reducing pilot valve closes gradually when
the pressure after pilot valve exceeds its pre-set value. Pressure gets accumulated within the upper cavity
room and membrane drives the disc down to close the valve till the pressure after the pilot valve gradually
SK720X reduces to its pre-set value. The pilot valve opens again when the pressure after the valve becomes lower
than the pre-set value, and the basic valve will then open with the release of the accumulated pressure in the
upper cavity room.
The throttle orifice (5) that connects the lower cavity to the outlet serves to keep the reaction of the valve
gentle and stable. The ball valve (4) controls the outlet water flow rate from the upper cavity room andthusto
stabilize the action of the basic valve. The ball valve can be adjusted with different working conditions. In case
of emergency, the ball valve can also be closed manually for cutting off of the basic valve.

3.Property and advantages

• Driven by pressure of pipe system, work automatically with energy of pipe system to achieve energy
conservation and environment protection.
• Controlled by the pilot valve, lower energy consumption, achieve accurate pressure reducing results, have
function of stabilizing pressure after the valve.
•Dualcavitydesign,withfunctionsoffullyopeningandfullyclosing.Slowshutcausesnopressurefluctuation,
and the diaphragm with support is well protected.
• Have internal orifice, connect bottom cavity and outlet of the basic valve, make sure stability of reaction to
SK720X1 keep stability of pressure after the valve, avoid any vibration and noise.
• Channel with straight-flow, slight friction loss, no eddy flow and turbulent flow, cut down the damage of
cavitation.
• Long pitch orientation design for stem move, stable and no gap resistance.
•Balancedautomatically,biggapdesignonconnectionofdiscandstem,discisfreeontheverticalflatagainst
stem, it can balance the tolerance from machining and sealing surface. Good connection without leakage.
Achieve functions of both reducing dynamic pressure and reducing static pressure.
•Ductileironcastingswithnodularityhigherthan90%,foundryinhousewithadvancedmeltingtechnology
and strict quality control system, testing reports and testing bars can be supplied with order. Records and
testing bars maintained for one year in the factory.
• Good corrosion resistance, with stainless steel, copper alloy, rubber made from DuPont and other rust-
resisting material, fusion bonded epoxy coating both for interior and exterior surface of the basic valve. All
the characteristics in accordance with ANSI/AWWA C550 and other international specifications like WRAS,
NSF61.
 American Valves 39

4.Typical installation illustration

For Fire Sprinkler System

5.Basic Parameters
Working Pressure
Pressure Symbol Unit
175PSI 250PSI 300PSI

Max. Inlet pressure P1max 1.0 1.6 2.5

Min. Inlet pressure P1min P2max + 0.2

Max. Outlet pressure P2max 0.8 1.0 1.6

Min. Outlet pressure P2min MPa 0.05

Characteristics of flow deviation ΔP2Q ≤10%

Pressurecharacteristicdeviation ΔP2p ≤5%

Min. pressure deviation ΔPmin 0.2

6.Notes for installation and debugging

AllthePressureReducingValveshavebeenfinishedinitialdebuggingtestsbeforedelivery.Furtherdubugging
test is also suggested during using according to different working conditions.
After the pipe system becomes stable, please loose the adjusting screw on the top of pilot valve to the top-
most position.
Tighten adjusting screw of pilot valve in clockwise slowly. When outlet pressure increase to the set pressure
please fasten the locknut under the adjusting screw.
If go beyond the set pressure during adjusting, please repeat the above steps. Remember, pressure can be
only adjusting from low level to high level and pay attention to make the adjusting slowly.

7.Common problems and proposed solutions

Common Problems Proposed Solutions

a.Check if any sundries on the sealing surface of basic valve or pilot valve.
b.Check if any damage on the sealing surface of basic valve or pilot valve.
Outlet pressure is similar with inlet
c.Check if any damage or fatigue on spring of basic valve or pilot valve.
pressure, no pressure reduction.
d.Check if any damage or fatigue on diaphragm of basic valve or pilot valve.
e.Check if any corrosion or blocking on stem of basic valve or pilot valve.

a.Close the needle valve before the basic valve and open 1/4 turns slowly. Open the big hex
screw on the top of bonnet, release air. Adjust the needle valve on inlet conduit slowly
Strong vibration and noise.
until no vibration.
b.Calculate the flow again and collect proper size of valve or add throttling set.

a.Check if pressure is fluctuating strongly at inlet. Try to keep it within small range.
Pressure after the valve is not stable. b.Check if required flow is too different than actual flow, recalculate flow and choose new
valve with proper size.
 40

Pressure Relief & 1.Statement

For Fire Sprinkler System

SK730X Pressure Relief & Sustaining Valve is a diaphragm type of hydraulic control valve driven by the
Sustaining Valve hydraulic pressure within the piping system. One prominent feature of the valve is, it can serve as pressure
relief valve and sustaining valve at the same time. As pressure relief valve, it releases the high pressure
before the valve out of the piping system for protection of the pipes and the equipments when the pressure
exceeds its pre-set value; As pressure sustaining valve, it maintains the water pressure above certain set
value for guarantee of water supply to upstream area
2.Operational principle
SK730X Pressure Relief & Sustaining Valve is controlled by pressure relief/sustaining pilot valve and
equipped with pressure relief/sustaining pilot valve, needle valve, mini strainer and ball valve, etc.
As Pressure relief valve, the valve is connected with branch pipe and directed to lower pressure area or
drainage ditch. In normal working conditions, water flow enters the upper cavity room (2) through needle
valve (1). When the pressure before the pilot valve (3) is lower than its pre-set value A, the pilot valve will
remain closed and the water that enters the upper cavity room drives the membrane down and closes the
disc and the basic valve. The pilot valve opens when the pressure before the valve exceeds its pre-set
value and the pressure accumulated in the upper cavity room gets released. Under the pressure from the
inlet opening, the disc of the basic valve opens. In this way the pressure within the piping system will be
SK730X maintained under the pre-set value A.
As pressure sustaining valve, the valve is connected in series with the main pipe and serves to maintain
the pressure before valve above the set value B. Under normal conditions, water flow comes continuously
fromtheinletopeningtotheuppercavityroom(2)ofthebasicvalvethroughtheneedlevalve(1);Whenthe
pressure before the pilot valve (3) is lower than its pre-set value, the pilot valve will remain closed and the
water that enters the upper cavity room drives the membrane down and closes the disc and the basic valve
for accumulation of pressure till equals to the set value B. The pilot valve opens when the pressure before
the valve exceeds its pre-set value and the pressure accumulated in the upper cavity room gets released.
Under the pressure from the inlet opening, the disc of the basic valve opens to allow water flow. In this way
the pressure within the piping system will be maintained under the pre-set value B.

3.Property and advantages

• Driven by pressure of pipe system, work automatically with energy of pipe system to achieve energy
conservation and environment protection.
•Controlledbypilotvalve,lowerenergyconsumption,achieveaccuratepressurereliefandpressureholding
SK730X1 results, reliable and safe.
•Dualcavitydesign,withfunctionsoffullyopeningandfullyclosing.Slowshutcausesnopressurefluctuation,
and the diaphragm with support is well protected.
• Have internal orifice, connect bottom cavity and outlet of the basic valve, make sure stability of reaction to
keep stability of pressure after the valve, avoid any vibration and noise.
• Channel with straight-flow, slight friction loss, no eddy flow and turbulent flow, cut down the damage of
cavitation.
• Long pitch orientation design for stem move, stable and no gap resistance.
•Balancedautomatically,biggapdesignonconnectionofdiscandstem,discisfreeontheverticalflatagainst
stem, it can balance the tolerance from machining and sealing surface. Good connection without leakage.
•Ductileironcastingswithnodularityhigherthan90%,foundryinhousewithadvancedmeltingtechnology
and strict quality control system, testing reports and testing bars can be supplied with order. Records and
testing bars maintained for one year in the factory.
• Good corrosion resistance, with stainless steel, copper alloy, rubber made from DuPont and other rust-
resisting material, fusion bonded epoxy coating both for interior and exterior surface of the basic valve. All
the characteristics in accordance with ANSI/AWWA C550 and other international specifications like WRAS,
NSF61.
 American Valves 41

4.Typical installation illustration

For Fire Sprinkler System

For Pressure Relief For Pressure Sustaining

5.Basic Parameters

Working Pressure
Pressure Symbol Unit
175PSI 250PSI 300PSI

Set Pressure ≤0.83 ≤1.33 ≤1.7

Ps
Set Pressure Ps＜0.5: ±0.014 MPa;
Difference Ps≥0.5: ±3%Ps

MPa
Open/Close
Ps＜0.3: 0.06MPa;
Pressure ΔPb
Ps≥0.3: 20%Ps
Difference

Discharge
Pd ≤1.2Ps
pressure

6.Notes for installation and debugging

All the Pressure Relief & Sustaining Valves have been finished initial debugging tests before delivery and the
set-pressure is 0.6MPa. Further debugging test is also suggested during using according to different working
conditions.
After the pipe system becomes stable, please loose the lock nut under adjusting screw, open the ball valve
or needle valve (1) slightly, when pressurize, adjust the adjust screw on pressure relief pilot valve and fasten
the lock nut when it achieves pressure required. Pay attention that when adjust pressure relief pilot valve,
clockwise is for increasing pressure and anti-clockwise is for reducing pressure.

7.Common problems and proposed solutions

Common Problems Proposed Solutions

a.Check if any sundries on the sealing surface of basic valve or pilot valve.
The pressure of pipe system is lower
b.Check if any damage on the sealing surface of basic valve or pilot valve.
than set-pressure,the valve dose not
c.Check if any damage or fatigue on spring of basic valve or pilot valve.
close.
d.Check if any damage or fatigue on diaphragm of basic valve or pilot valve.

a.Check if ball valve (4) is closed, if yes, please open it.

The pressure of pipe system is
b.Check if any blocks in basic valve or on stem of pilot valve, if yes, please remove the block
higher than set-pressure, the valve
or change new stem.
dose not open.
c.Check if lock nut and adjust screw were adjusted wrongly, please try to repeat all the actions.
 42

Deluge Alarm Valve 1.Statement

SK790X Deluge Alarm Valve is a diaphragm type of hydraulic control valve driven by the hydraulic pressure
For Fire Sprinkler System

within the piping system, functioning as flow control and alarming device in the sprinkler and pre-action
system, i.e. to start the sprinkler system for quenching of the fire and send out fire alarm through the fire bell
when there is fire detected.
2.Operational principle
SK790X Deluge Alarm Valve is equipped with solenoid, anti-reset controller, mini strainer, ball valve and
pressure gauge, etc..
Fordelugevalvethereissetconditionandworkcondition.Whenthevalveisundersetcondition,ballvalve(3)
is open, ball valve (7), solenoid (8) and remote ball valve (9) are closed, the anti-reset controller is connected,
and pressure gauge (1) and pressure gauge (6) shows the same value. When ball valve (11) is open, pressure
gauge (10) shows 0. When ball valve (12) and (14) are open, (13) & (15) closed, there is no hydraulic pressure
for pressure switch (17) , and alarm (18) does not work. Under set condition, you can operate as following if
you want to test the pressure switch alarm device (17) and water motor alarm (18): close ball valve (14) and
open (15), and then close (15) and open (14) after testing.
Incasethereisfiredetected,thefollowing3methodswillsetthedelugevalveintoworkconditionimmediately,
A: Opening solenoid valve (8) B: Opening ball valve (7) C: Opening remote ball valve (9). Any of the above 3
methodscangetthepressurewithinthecontrolroomofthebasicvalvereleasedrapidlytoopenthevalveand
SK790X setitintoworkingcondition.Atthistimethesealingballofanti-resetcontrollermakescontrollerinashutdown
state, water will pass through the main valve, ball valve (12), (4), pressure switch (17), fire bell (18), the
pressure switch bell sends out signal alarms. After fire fighting, close ball valve (7), solenoid valve (8), remote
valve (9), press the anti-reset controller handle till the pressure gauge (6) and pressure gauge (1) shows the
same value. The deluge alarm valves returns to set condition.
Ball valve (2), (5) & (11) are normally open unless need to change the pressure gauge.

3.Property and advantages

• Driven by pressure of pipe system, work automatically with energy of pipe system to achieve energy
conservation and environment protection.
•Dualcavitydesign,withfunctionsoffullyopeningandfullyclosing.Slowshutcausesnopressurefluctuation,
and the diaphragm with support is well protected.
•Tripleinsurance,there'rethreeopeningtypesusedfordifferentsituationoffiring.Anyonecanmakethe valve
into working condition.
•Anti-resetcontroller,hydraulicpressuretype,compactdesign,tightsealing,operatingbyhandtomakesure
all the parts including basic valve, ball valves and conduits are all in good condition after out-fire.
• Channel with straight-flow, slight friction loss, no eddy flow and turbulent flow, cut down the damage of
cavitation.
• Long pitch orientation design for stem move, stable and no gap resistance.
• Balanced automatically, big gap design on connection of disc and stem, disc is free on the vertical flat
against stem, it can balance the tolerance from machining and sealing surface. Good connection without
leakage. Achieve functions of both reducing dynamic pressure and reducing static pressure.
•Ductileironcastingswithnodularityhigherthan90%,foundryinhousewithadvancedmeltingtechnology
and strict quality control system, testing reports and testing bars can be supplied with order. Records and
testing bars maintained for one year in the factory.
• Good corrosion resistance, with stainless steel, copper alloy, rubber made from DuPont and other rust-
resisting material, fusion bonded epoxy coating both for interior and exterior surface of the basic valve. All
the characteristics in accordance with ANSI/AWWA C550 and other international specifications like WRAS,
NSF61.
 American Valves 43

4.Typical installation illustration

For Fire Sprinkler System

5.Notes for installation and debugging
Please check if pressure switch and alarm bell are in good condition before installation. Make sure water can
not leak to system from water supplying system or there's equipment to discharge the leaked water.
Please adjust all the ball valves to make sure the basic valve be in set condition.
Make sure anti-reset controller is in good condition and seal well before installation. If there's water with
pressure in front of the valve, please closed ball valve (7), (9) and electromagnetic valve when it's in empty
state behind the basic valve, press the anti-reset controller, when up cavity of basic valve is full of water
please check if there's any leakage behind the valve. If no leakage, it said anti-reset controller is in good
condition.

6.Common problems and proposed solutions

Common Problems Proposed Solutions

a.Check if any sundries or damage on the sealing surface of basic valve or anti-reset controller.
Press anti-reset controller after
b.Check if any damage on diaphragm.
fire-out, there's still water coming
c.Check if controlling valve (7), (8) and (9) were closed completely. Close them or replace with
out behind the valve.
new ones.

When open controlling valve (7),

a.Check if controlling valve (7), (8) and (9) were opened. Close them or replace with new ones.
(8) and (9) no water comes out
b.Check if there's block on stem of basic valve, repair it.
from the basic valve.
 44

AWWA Resilient Wedge

Gate Valve
• Statement:
Gate valves serve to cut the medium flow in the piping system, widely used in the field of potable
water, water supply and drainage, sewage disposal, irrigation, air conditioning, fire protection as
well as chemical and energy industry.

• Features:
1. Material:
Ductile Iron ASTM A536, 65-45-12
Body,bonnet,wedge,handwheelandoperatingnutareallproducedinductileironmaterialwhich
provides guarantee for high strength and good corrosion resistance.
2. Triple O-ring Stem Seals
The lower O-ring isolates the stem thrust collar bearing area from the waterway. The upper two
O-rings can easily be replaced in the line while the valve is under pressure in the open position.
3. Stainless Steel Stem, Brass Thrust Collar and Bronze Wedge Nut
This life-tested MEIDE design has repeatedly proven its superior strength and abrasive
resistance.
4. Fusion Bonded Epoxy Coating
FusionbondedepoxycoatinginaccordancewithANSI/AWWAC550forbothinteriorandexterior
• Body, Bonnet, Wedge & Operating
surface which provides reliable corrosion resistance. Nut in Ductile Iron
5. Long Service Life with Resilient Seat Cycling Test 1,000 times • Triple O-ring Stem Seals
The Valve has been subjected to 1,000 cycles of operation at a maximum rate of 6 cycles of • Stainless Steel Stem and Brass Thrust Collar
operation per minute from fully closed to fully open and from fully open to fully closed positions
• Bronze Alloy Wedge Nut
under cycled hydrostatic pressure.
• Fusion Bonded Epoxy Coating

Z45X Z35X Z15X XZ41X

Flanged Resilient NRS Mechanical Joint Resilient NRS Threaded Joint Resilient NRS Flanged Resilient OS&Y
Gate Valve Gate Valve Gate Valve Gate Valve
Page 45 Page 46 Page 47 Page 48
For Waterworks Purposes
 American Valves 45

AWWA C515 Flanged Resilient NRS

Gate Valve (Z45X),
NSF Approved

MATERIAL SPECIFICATION

Part No. Part Standard Specification Options

1 Valve Body ASTM A536, 65-45-12
2 Resilient Wedge Disc ASTM A536, 65-45-12+EPDM
Z45X
3 Stem Stainless Steel

• Connection Ends: Flange to ASME B16.1 CL 125 4 Bonnet Gasket EPDM NBR
5 Bonnet ASTM A536, 65-45-12
• Working Pressure: 300PSI
6 O-Ring NBR EPDM
200PSI and 250PSI available upon request
7 Gland ASTM A536, 65-45-12
• Temperature Range: 0℃- 80℃
8 Handwheel ASTM A536, 65-45-12 Pressed Steel
• Coating: Fusion Bonded Epoxy Coating in accordance with 9 Bolt Carbon Steel Zinc Plated AISI 304, AISI 316
ANSI/AWWA C550 10 Flat Washer Carbon Steel Zinc Plated AISI 304, AISI 316
11 Ring Wiper EPDM NBR
12 O-Ring NBR EPDM
13 Nut Carbon Steel Zinc Plated AISI 304, AISI 316
14 Axis Guide Brass Hpb59-1
15 Washer Brass Hpb59-1
16 O-Ring NBR EPDM
17 Nut Carbon Steel Zinc Plated AISI 304, AISI 316
18 Wedge Nut Brass Hpb59-1 Bronze ZQSn5-5-5

Note: For special material request other than standard specification, please indicate clearly on the inquiry or order list.
Size 2"~5" with 1pc of 1/2" bronze NPT tapping plug, size 6"~24" with 1pc of 3/4" bronze NPT tapping plug.

Z45XC

DN Dimensions(mm) Turns to Open

Inch mm L H D D1 C n-ΦL Double-Lead thread Single-lead thread
2" 50 178 254 152 120.7 16 4-Φ19.1 6.1 -
2.5" 65 190 275 178 139.7 17.5 4-Φ19.1 7.5 -
3" 80 203 301 191 152.4 19.1 4-Φ19.1 9.2 18.4
4" 100 229 355 229 190.5 19.1 8-Φ19.1 12.5 25
For Waterworks Purposes

5" 125 254 393 254 215.9 19.1 8-Φ22.2 - -

6" 150 267 448 279 241.3 19.1 8-Φ22.2 13.1 26.2
8" 200 292 548 343 298.5 22.2 8-Φ22.2 17.5 35
10" 250 330 626 406 362 23.8 12-Φ25.4 22.2 44.4
12" 300 356 722 483 431.8 25.4 12-Φ25.4 26 52
14" 350 381 917 533 476.25 25.4 12-Φ28.6 29.5 -
16" 400 406 917 597 539.75 25.4 16-Φ28.6 33.5 -
18" 450 432 1108 635 577.85 25.4 16-Φ31.8 37.5 -
20" 500 457 1130 699 635.00 28.6 20-Φ31.8 42 -
24" 600 508 1311 813 749.3 30.1 20-Φ34.9 50 -

Note: Single lead thread stem is available upon request.

 46

AWWA C515 Mechanical Joint Resilient

NRS Gate Valve (Z35X), NSF Approved

MATERIAL SPECIFICATION

Part No. Part Standard Specification Options

1 Valve Body ASTM A536, 65-45-12
2 Resilient Wedge Disc ASTM A536, 65-45-12+EPDM
Z35X
3 Stem Stainless Steel
• Connection Ends: Mechanical Joint to ANSI/AWWA C153/A21.53 4 Bonnet Gasket EPDM NBR
• Working Pressure: 300PSI 5 Bonnet ASTM A536, 65-45-12
200PSI and 250PSI available upon request 6 O-Ring NBR EPDM

• Temperature Range: 0℃- 80℃ 7 Gland ASTM A536, 65-45-12

8 Handwheel ASTM A536, 65-45-12
• Coating: Fusion Bonded Epoxy Coating Complies with
ANSI/AWWA C550 9 Bolt Carbon Steel Zinc Plated AISI 304, AISI 316
10 Flat Washer Carbon Steel Zinc Plated AISI 304, AISI 316
11 Ring Washer EPDM NBR
12 O-Ring NBR EPDM
13 Bolt Carbon Steel Zinc Plated AISI 304, AISI 316
14 Axis Guide Brass HPb59-1
15 Washer Brass HPb59-1
16 O-Ring NBR EPDM
17 Bolt Carbon Steel Zinc Plated AISI 304, AISI 316
18 Wedge Nut Brass HPb59-1 Bronze ZQSn5-5-5

Note: For special material request other than standard specification, please indicate clearly on the inquiry or order list.

DN Dimensions(mm)
Inch mm L H D D1 E F C n-ΦL
Z35XC
2" 50 203 254 152 120.6 89.0 66.3 16.0 2-Φ19.1
3" 80 229 301 195 157.0 125.5 103.1 19.1 4-Φ19.1
4" 100 229 355 232 190.5 152.9 124.5 19.1 4-Φ22.2
6" 150 292 448 282 241.3 206.2 177.8 19.1 6-Φ22.2
8" 200 318 548 340 298.0 260.9 232.4 22.2 6-Φ22.2
For Waterworks Purposes

10" 250 375 626 397 355.6 313.4 284.4 23.8 8-Φ22.2
12" 300 378 722 454 412.7 366.7 337.8 25.4 8-Φ22.2

Z05XC
 American Valves 47

Threaded Joint Resilient NRS

Gate Valve (Z15X)

MATERIAL SPECIFICATION

Part No. Part Standard Specification Options

1 Valve Body ASTM A536,65-45-12

Z15X 2 Resilient Wedge Disc ASTM A536,65-45-12+EPDM

3 Stem AISI 420 AISI 304, AISI 316, AISI 431
• Connection Thread Standard: ASME B1.20.1 4 Bonnet ASTM A536,65-45-12
• Working Pressure: 250PSI 5 Sealing Gasket NBR
200PSI and 250PSI available upon request 6 Bolt Carbon Steel Zinc Plated AISI 304, AISI 316

• Temperature Range: 0℃- 80℃ 7 Axis guide Brass HPb59-1

8 Seal ring NBR EPDM
• Coating: Fusion Bonded Epoxy Coating in accordance with
ANSI/AWWA C550 9 O-Ring NBR EPDM
10 O-Ring NBR EPDM
11 Plug Brass HPb59-1 Bronze ZQSn5-5-5
12 Handwheel Carbon Steel
13 Nut Carbon Steel Zinc Plated AISI 304, AISI 316

Note: For special material request other than standard specification, please indicate clearly on the inquiry or order list.

DN Dimensions(mm)
Inch mm L H D B
1/2" 15 65 86 1/2-14NPT 27
3/4" 20 70 96 3/4-14NPT 35
1" 25 80 116 1-11.5NPT 41
1-1/4" 32 90 127 1 1/4-11.5NPT 51
1-1/2" 40 100 150 1 1/2-11.5NPT 58.5
2" 50 110 170 2-11.5NPT 72

For Waterworks Purposes

 48

AWWA C515 Flanged Resilient OS&Y

Gate Valve (XZ41X),
NSF Approved

MATERIAL SPECIFICATION

Part No. Part Standard Specification Options

1 Valve Body ASTM A536, 65-45-12
2 Resilient Wedge Disc ASTM A536, 65-45-12+EPDM
3 Stem Stainless Steel
XZ41X 4 Bonnet Gasket EPDM NBR
5 Bonnet ASTM A536, 65-45-12
• Connection Ends: Flange to ASME B16.1 CL 125
6 Washer Brass Hpb59-1
• Working Pressure: 300PSI
7 Yoke ASTM A536, 65-45-12
200PSI and 250PSI available upon request
8 Stem Bushing Brass Hpb59-1
• Temperature Range: 0℃- 80℃ 9 Gland ASTM A536, 65-45-12
• Coating: Fusion Bonded Epoxy Coating in accordance with 10 Stem Nut Brass Hpb59-1 Bronze ZQSn5-5-5
ANSI/AWWA C550 11 Handwheel ASTM A536, 65-45-12 Pressed Steel
12 Washer Brass Hpb59-1
13 Gland Nut Carbon Steel Zinc Plated AISI 304, AISI 316
14 Stud Carbon Steel Zinc Plated AISI 304, AISI 316
15 Flat Washer Carbon Steel Zinc Plated AISI 304, AISI 316
16 Nut Carbon Steel Zinc Plated AISI 304, AISI 316
17 O-Ring EPDM NBR

Note: For special material request other than standard specification, please indicate clearly on the inquiry or order list.
Size 2"~5" with 1pc of 1/2" bronze NPT tapping plug, size 6"~24" with 1pc of 3/4" bronze NPT tapping plug.

DN Dimensions(mm) Turns to Open

Inch mm L H1(Close) H2(Open) D D1 C n-ΦL Double-Lead thread

2" 50 178 348 400 152 120.7 16 4-Φ19.1 6.5 6.5

2.5" 65 190 373 440 178 139.7 17.5 4-Φ19.1 7.5 7.5
3" 80 203 408 490 191 152.4 19.1 4-Φ19.1 8.8 8.8
4" 100 229 471 573 229 190.5 19.1 8-Φ19.1 10.5 10.5
5" 125 254 541 665 254 215.9 19.1 8-Φ22.2
6" 150 267 601 755 279 241.3 19.1 8-Φ22.2 13.3 13.3
For Waterworks Purposes

8" 200 292 774 975 343 298.5 22.2 8-Φ22.2 17.7 17.7
10" 250 330 939 1193 406 362 23.8 12-Φ25.4 22.5 22.5
12" 300 356 1065 1370 483 431.8 25.4 12-Φ25.4 26 26
14" 350 381 1210 1560 533 476.3 25.4 12-Φ28.6 29.5 29.5
16" 400 406 1280 1680 597 539.8 25.4 16-Φ28.6 33.5 33.5
18" 450 432 1760 2210 635 577.9 25.4 16-Φ31.8 37.5 37.5
20" 500 457 1780 2280 699 635.0 28.6 20-Φ31.8 42 42
24" 600 508 1950 2550 813 749.3 30.1 20-Φ34.9 50 50
 American Valves 49

MSS SP-67 Resilient Centerline

Butterfly Valve
• Statement:
Resilient centerline butterfly valves usually serve to cut off medium flow in the piping system,
widelyappliedinthefieldofpotablewater,watersupplyanddrainage,sewagedisposal,irrigation,
airconditioning,fireprotectionaswellaschemicalandenergyindustry.Thedesignofthebutterfly
valves, however, makes it also suitable to serve as adjusting valve.

• Features:
1. Material:
Body and lever are all produced in ductile iron material (ASTM A536, 65-45-12) which provides
guarantee for high strength and good corrosion resistance.
Different options of the disc and seat, e.g. disc of DI nickel or nylon 11 coated, different series of
stainless steel, Al-bronze, seat in EPDM, NBR or Fluororubber, makes it suitable to be applied
under different working conditions.
2. Design:
Universal flange connection to EN 1092 PN6/10/16, ASME B16.1 CL 125, ASME B16.5 CL 150,
GB9113, JIS B2112 10K, AS 2129 Table E, BS 10 Table D/E.
Different options of operation including lever handle, gear box, gear box with tamper switch,
electric drive, and pneumatic drive, etc.
Differentoptionsofrubberseatincludinginsertrubberseat,rubbervulcanizedonvalvebodyand
boot rubber seat. • Ductile Iron Lever and Body

3. Coating • Stainless Steel Stem

Fusion bonded epoxy coating of valve body and lever provides reliable corrosion resistance. • Fusion Bonded Epoxy Coating
To achieve higher corrosion resistance, factory is also able to supply Nylon 11 coated disc. Nylon • Disc: DI, Stainless Steel or Al-bronze
11 coating is thermoplastic plant coating approved by USDA with high corrosion resistance and
• Seat: EPDM/NBR/Fluororubber with backing
antisepsis which can be applied where there is strict requirement for anti-corrosion.

D71X4 D71XL4 D41X4 D81X4 D81X4-BL

Wafer Butterfly ValveLugged Wafer Butterfly Valve Flanged Butterfly Valve Grooved Butterfly Valve Grooved Butterfly Valve
Page 50 Page 51 Page 52 Page 53 Page 54

One-Piece Stem Pinless Butterfly Valves Kv Value

DN
10° 20° 30° 40° 50° 60° 70° 80° 90°
Inch mm
2" 50 0.05 3 6 13 23 38 61 91 99
2.5" 65 0.09 5 10 22 39 65 103 154 170
For Waterworks Purposes

3" 80 0.17 8 16 34 61 100 158 238 261

4" 100 0.26 15 31 67 120 199 315 472 519
5" 125 0.43 25 53 115 205 339 536 804 884
6" 150 0.69 29 82 132 222 365 611 998 1366
8" 200 2 48 133 217 365 599 1002 1637 1873
10" 250 3 75 206 333 566 928 1552 2535 2901
12" 300 3 132 361 589 990 1625 2718 4439 5041
14" 350 5 158 433 706 1187 1948 3257 5320 6087
16" 400 7 234 640 1045 1757 2883 4821 7875 9010
18" 450 10 275 750 1226 2061 3381 5653 9235 10567
20" 500 12 359 980 1601 2692 4418 7386 12066 13805
24" 600 19 468 1282 2094 3520 5777 9658 15779 18053
28" 700 31 1568 3148 5740 8651 16824 19696 30189 42820
30" 750 32 1799 3811 7557 11927 17831 27158 41624 33088
 50

MSS SP-67 Wafer Butterfly Valve

(D71X4, D371X4)

MATERIAL SPECIFICATION

Part No. Part Standard Specification Options

1 Valve Body ASTM A536, 65-45-12
NBR/Fluororubber&Backing
DN40~400: EPDM & Backing
2 Seat EPDM/NBR Vulcanized on Valve Body
DN450~800: EPDM Vulcanized on Valve Body
D71X4 Soft Seat in EPDM/NBR

Rubber Seat with Backing 3 Disc ASTM A536, 65-45-12 AISI 304, AISI 316, AL-Bronze C95400
Cartridge Style 4 Stem
DN40~350: AISI 420, One-Piece Stem Design
AISI 304, AISI 316, AISI 416, AISI 431
DN400~800: AISI 431, Two-Piece Stem Design
• Design Standard: MSS SP-67 5 O-Ring NBR EPDM

• Connection Ends: ASME B16.1 CL 125, ASME B16.5 CL 150 6 Bushing

DN40~350: Nylon 1010
PTFE
DN400~800: Lubricating Bronze
• Top Flange Standard: ISO 5211 7 Lever ASTM A536, 65-45-12 Aluminum
Stem drive by keys, parallel or diagonal square or flat head
ShaftCover
• Working Pressure: 250PSI 8
(DN400~800)
ASTM A536, 65-45-12
175PSI, 200PSI and 300PSI available upon request
9 Gear Box ASTM A536, 65-45-12
• Temperature Range: 0℃- 80℃
Note: For special material request other than standard specification, please indicate clearly on the inquiry or order list.
• Coating: Fusion Bonded Epoxy Coating in accordance with
ANSI/AWWA C550

D71XV4 D71XS4 D371X4

Vulcanized Seat Independent Rubber Seat Rubber Seat with Backing
Boot Style Dove-tail Style Cartridge Style

DN Dimensions(mm)
Inch mm A B V C ØD Ø2 ØK G L ØD1 N-Ø1 ISO 5211 Ø3 H H1 H2 P
1.5" 40 138 64.5 32 33 43.9 14 90 9.45 267 98.5 4-Ø15.9 F07 150 206 158 52 43.5
2" 50 140.5 64.5 32 43 53.9 14 90 9.53 267 120.7 4-Ø19.1 F07 150 206 158 52 43.5
2.5" 65 153 72 32 46 65.2 14 90 9.53 267 139.7 4-Ø19.1 F07 150 206 158 52 43.5
3" 80 157.5 86 32 46 79.7 14 90 9.53 267 152.4 4-Ø19.1 F07 150 206 158 52 43.5
For Waterworks Purposes

4" 100 176 100 32 52 105 16 90 11.14 267 190.5 8-Ø19.1 F07 150 206 158 52 43.5
5" 125 191 112 32 56 130 16 90 11.14 267 215.9 8-Ø22.2 F07 150 206 158 52 43.5
6" 150 202.5 128 32 56 156 20 90 12.7 267 241.3 8-Ø22.2 F07 150 206 158 52 43.5
8" 200 243.5 162 45 60 206.7 26 125 20.6 356 298.5 8-Ø22.2 F10 300 310 239 69 62.5
10" 250 273 194 45 68 253.3 26 125 20.6 490 362 12-Ø25.4 F10 300 310 239 69 62.5
12" 300 311 223 45 78 301.9 28 125 22.1 490 431.8 12-Ø25.4 F10 300 307 229 73 77.5
14" 350 340 267 48 78 333.9 31.6 150 22.1 - 476.3 12-Ø25.4 F12 300 307 229 73 77.5
16" 400 400 319.5 48 102 389.6 33.2 175 27 - 539.8 16-Ø25.4 F14 380 418 288 110 120
18" 450 422 345.4 48 114 441 38.1 175 27 - 577.9 16-Ø28.6 F14 380 418 288 110 120
20" 500 480 380 70.2 127 492.4 41.2 210 - - 635 20-Ø28.6 F16 380 465 215 123 185
24" 600 562 441 70.2 154 592.8 50.6 210 - - 749.3 20-Ø31.8 F16 380 500 215 129 185
28" 700 575 505 70.2 165 695 63.4 300 - - 864 28-Ø35.1 F25 380 543 213 132 218
30" 750 660 550 70.2 165 744 63.4 300 - - 914.4 28-Ø31.8 F25 380 543 213 132 218
32" 800 667 577 70.2 190 795.7 63.4 300 - - 977.9 28-Ø41.4 F25 380 543 213 132 218
 American Valves 51

MSS SP-67 Lugged Wafer

Butterfly Valve (D71XL4, D371XL4)

MATERIAL SPECIFICATION

Part No. Part Standard Specification Options

D71XL4 1 Valve Body ASTM A536, 65-45-12

NBR/Fluororubber&Backing
• Design Standard: MSS SP-67 2 Seat
DN40~150: EPDM & Backing
EPDM/NBR Vulcanized on Valve Body
DN200~800: EPDM Vulcanized on Valve Body
Soft Seat in EPDM/NBR
• Connection Ends: ASME B16.1 CL 125, ASME B16.5 CL 150
3 Disc ASTM A536, 65-45-12 AISI 304, AISI 316, AL-Bronze C95400
• Top Flange Standard: ISO 5211
Stem drive by keys, parallel or diagonal square or flat head 4 Stem
DN40~350: AISI 420, One-Piece Stem Design
AISI 304, AISI 316, AISI 416, AISI 431
DN400~800: AISI 431, Two-Piece Stem Design
• Working Pressure: 250PSI
5 O-Ring NBR EPDM
175PSI, 200PSI and 300PSI available upon request
DN40~350: Nylon 1010
• Temperature Range: 0℃- 80℃ 6 Bushing PTFE
DN400~800: Lubricating Bronze

• Coating: Fusion Bonded Epoxy Coating in accordance with 7 Lever ASTM A536, 65-45-12 Aluminum
ANSI/AWWA C550 ShaftCover
8 ASTM A536, 65-45-12
(DN400~800)

9 Gear Box ASTM A536, 65-45-12

Note: For special material request other than standard specification, please indicate clearly on the inquiry or order list.

D371XL4

DN Dimensions(mm)
Inch mm A B V C ØD Ø2 ØK G L ØD1 N-M ISO 5211 Ø3 H H1 H2 P
1.5" 40 138 64.5 32 33 43.9 14 90 9.45 267 98.5 4-1/2 F07 150 206 158 52 43.5
2" 50 140.5 64.5 32 43 53.9 14 90 9.53 267 120.7 4-5/8 F07 150 206 158 52 43.5
2.5" 65 153 72 32 46 65.2 14 90 9.53 267 139.7 4-5/8 F07 150 206 158 52 43.5
3" 80 157.5 86 32 46 79.7 14 90 9.53 267 152.4 4-5/8 F07 150 206 158 52 43.5
4" 100 176 100 32 52 105 16 90 11.14 267 190.5 8-5/8 F07 150 206 158 52 43.5
5" 125 191 112 32 56 130 16 90 11.14 267 215.9 8-3/4 F07 150 206 158 52 43.5
For Waterworks Purposes

6" 150 202.5 128 32 56 156 20 90 12.7 267 241.3 8-3/4 F07 150 206 158 52 43.5
8" 200 243.5 162 45 60 206.7 26 125 20.6 356 298.5 8-3/4 F10 300 310 239 69 62.5
10" 250 273 194 45 68 253.3 26 125 20.6 490 362 12-7/8 F10 300 310 239 69 62.5
12" 300 311 223 45 78 301.9 28 125 22.1 490 431.8 12-7/8 F10 300 307 229 73 77.5
14" 350 340 267 48 78 333.9 31.6 150 22.1 - 476.3 12-1 F12 300 307 229 73 77.5
16" 400 400 319.5 48 102 389.6 33.2 175 27 - 539.8 16-1 F14 380 418 288 110 120
18" 450 422 345.4 48 114 441 38.1 175 27 - 577.9 16-1 1/8 F14 380 418 288 110 120
20" 500 480 380 70.2 127 492.4 41.2 210 - - 635 20-1 1/8 F16 380 465 215 123 185
24" 600 562 441 70.2 154 592.8 50.6 210 - - 749.3 20-1 1/4 F16 380 500 215 129 185
28" 700 575 505 70.2 165 695 63.4 300 - - 863.6 28-1 1/4 F25 380 543 213 132 218
30" 750 660 550 70.2 165 744 63.4 300 - - 914.4 28-1 1/4 F25 380 543 213 132 218
32" 800 667 577 70.2 190 795.7 63.4 300 - - 977.9 28-1 1/2 F25 380 543 213 132 218
 52

API 609 Flanged Butterfly Valve

(D41X4, D341X4)

MATERIAL SPECIFICATION

Part No. Part Standard Specification Options

D41X4 1 Valve Body ASTM A536, 65-45-12

2 Seat EPDM NBR

• Design Standard: API 609
AISI 304, AISI 316,
• Face to Face: EN 558 Series 13 3 Disc ASTM A536, 65-45-12
AL-Bronze C95400

• Connection Ends: ASME B16.1 CL 125 4 Stem

DN50~350: AISI 420, One-Piece Stem Design AISI 304, AISI 316,
DN400~800: AISI 431, Two-Piece Stem Design AISI 416, AISI 431
• Top Flange Standard: ISO 5211
5 O-Ring NBR EPDM
Stem drive by keys, parallel or diagonal square or flat head
6 Bushing Nylon 1010 PTFE
• Working Pressure: 250PSI
175PSI, 200PSI and 300PSI available upon request 7 Lever ASTM A536, 65-45-12 Aluminum

• Temperature Range: 0℃- 80℃ 8

Shaft Cover
ASTM A536, 65-45-12
(DN400~800)
• Coating: Fusion Bonded Epoxy Coating inaccordance with
Bushing
ANSI/AWWA C550 9 Lubricating Bronze
(DN400~800)
Bushing
10 Lubricating Bronze
(DN400~800)
Packing
11 PTFE
(DN400~800)

12 Gear Box ASTM A536, 65-45-12

Note: For special material request other than standard specification, please indicate clearly on the inquiry or order list.

D341X4

DN Dimensions(mm)
Inch mm L1 H1 H2 H3 H4 ΦA B ΦC N-Φ1 ΦD ΦE ΦK n-Φ2 ISO 5211 ΦF L
2" 50 108 63 110 32 52 152 16 120.7 4-Φ19.1 53.9 70 90 4-Φ10 F07 14 267
2.5" 65 112 71 135 32 52 178 17.5 139.7 4-Φ19.1 65.2 70 90 4-Φ10 F07 14 267
3" 80 114 80 145 32 52 191 19.1 152.4 4-Φ19.1 79.7 70 90 4-Φ10 F07 14 267
4" 100 127 90 150 32 52 229 24 190.5 8-Φ19.1 105 70 90 4-Φ10 F07 16 267
5" 125 140 107 170 32 52 254 24 215.9 8-Φ22.2 130 70 90 4-Φ10 F07 16 267
For Waterworks Purposes

6" 150 140 123 180 32 52 279 25.5 241.3 8-Φ22.2 156 70 90 4-Φ10 F07 20 267
8" 200 152 153 210 45 69 343 28.5 298.5 8-Φ22.2 206.7 102 125 4-Φ12 F10 26 356
10" 250 165 185 245 45 69 406 30.5 362 12-Φ25.4 253.3 102 125 4-Φ12 F10 26 356
12" 300 178 213 275 45 73 483 32 431.8 12-Φ25.4 301.9 102 125 4-Φ12 F10 28 490
14" 350 190 254 310 45 73 533 35.1 476.3 12-Φ28.6 333.9 125 150 4-Φ14 F12 31.6 -
16" 400 216 280 340 48 110 597 36.6 539.8 12-Φ28.6 389.6 140 175 4-Φ18 F14 33.2 -
18" 450 222 320 375 48 110 635 39.6 577.9 16-Φ31.8 441 140 175 4-Φ18 F14 38 -
20" 500 229 350 430 70.3 123 699 42.9 635 16-Φ31.8 492.4 165 210 4-Φ22 F16 41.2 -
24" 600 267 418 500 70.3 129 813 47.8 749.3 20-Φ34.9 592.8 165 210 4-Φ22 F16 50.6 -
28" 700 292 450 575 73 132 927 71 863.6 28-Φ35.1 695 254 300 8-Φ18 F25 63.4 -
32" 800 318 501 620 73 132 1061 81 977.9 28-Φ41.4 795.7 254 300 8-Φ18 F25 63.4 -
 American Valves 53

Grooved Butterfly Valve

(D81X4, D381X4)

MATERIAL SPECIFICATION

Part No. Part Standard Specification Options

1 Valve Body ASTM A536, 65-45-12

2 Disc ASTM A536, 65-45-12+EPDM ASTM A536, 65-45-12+NBR

D81X4 3 O-Ring NBR EPDM

4 Stem Stainless Steel

• Design Standard: MSS SP-67
• Connection Ends: Groove to AWWA C606 5 O-Ring NBR EPDM

• Top Flange Standard: ISO 5211 6 Stem Stainless Steel

Stem drive by keys, parallel or diagonal square or flat head 7 Lever ASTM A536, 65-45-12 Aluminum

• Working Pressure: 300PSI 8 Gear Box ASTM A536, 65-45-12

175PSI, 200PSI and 250PSI available upon request
Note: For special material request other than standard specification, please indicate clearly on the inquiry or order list.
• Temperature Range: 0℃- 80℃
• Coating: Fusion Bonded Epoxy Coating in accordance with
ANSI/AWWA C550 or painting upon request

D381X4

DN Dimensions(mm)

Inch mm A B C ΦD ΦF ΦG L1 L2 L ΦK H H1 H2 J ΦM Φ2 ISO 5211 ΦE N-Φ1

2" 50 89 65 81 50.3 60.3 57.15 15.88 7.93 32 90 206 158 52 114 150 14 F07 70 4-Φ10

2.5" 65 102 71 97 60.8 73.0 69.09 15.88 7.93 32 90 206 158 52 114 150 14 F07 70 4-Φ10

3" 80 109 81 97 76 88.9 84.94 15.88 7.93 32 90 206 158 52 114 150 14 F07 70 4-Φ10

4" 100 128 95 116 98.5 114.3 110.08 15.88 9.53 32 90 206 158 52 114 150 16 F07 70 4-Φ10
For Waterworks Purposes

5" 125 141 111 148 122.6 141.3 137.03 15.88 9.53 32 90 206 158 52 114 150 16 F07 70 4-Φ10

6" 150 153 133 148 148 168.3 163.96 15.88 9.53 32 90 206 158 52 114 150 20 F07 70 4-Φ10

8" 200 184 164 133 199 219.1 214.4 19.05 11.10 45 125 310 239 69 167 300 26 F10 102 4-Φ12

10" 250 216 196 159 252 273.0 268.28 19.05 12.70 45 125 310 239 69 167 300 26 F10 102 4-Φ12

12" 300 254 226 165 300.5 323.9 318.29 19.05 12.70 45 125 307 229 73 190 300 28 F10 102 4-Φ12

Note: Valve must not be installed with disc in full open position. Disc must be partly closed so that no part is protruding beyond end of valve body.
 54

Grooved Butterfly Valve

(D81X4-BL, D381X4-BL)

MATERIAL SPECIFICATION

Part No. Part Standard Specification Options

1 Valve Body ASTM A536, 65-45-12

2 Disc ASTM A536, 65-45-12+EPDM ASTM A536, 65-45-12+NBR

D81X4-BL 3 O-Ring NBR EPDM

• Design Standard: MSS SP-67 4 Stem Stainless Steel

• Connection Ends: Groove to AWWA C606 5 O-Ring NBR EPDM

• Top Flange Standard: ISO 5211 6 Stem Stainless Steel

Stem drive by keys, parallel or diagonal square or flat head 7 Lever ASTM A536, 65-45-12 Aluminum
• Working Pressure: 300PSI 8 Gear Box ASTM A536, 65-45-12
175PSI, 200PSI and 250PSI available upon request
Note: For special material request other than standard specification, please indicate clearly on the inquiry or order list.
• Temperature Range: 0℃- 80℃
• Coating: Fusion Bonded Epoxy Coating in accordance with
ANSI/AWWA C550 or painting upon request

D381X4-BL

DN Dimensions(mm)

Inch mm A B C ΦD ΦF ΦG L1 L2 L ΦK H H1 H2 J ΦM SXS ISO 5211 ΦE N-Φ1

2" 50 100 65 81 50.3 60.3 57.15 15.88 7.93 32 90 206 158 52 114 150 11X11 F07 70 4-Φ10

2.5" 65 115 71 97 60.8 73.0 69.09 15.88 7.93 32 90 206 158 52 114 150 11X11 F07 70 4-Φ10

3" 80 113 81 97 76 88.9 84.94 15.88 7.93 32 90 206 158 52 114 150 11X11 F07 70 4-Φ10

4" 100 145 95 116 98.5 114.3 110.08 15.88 9.53 32 90 206 158 52 114 150 14X14 F07 70 4-Φ10
For Waterworks Purposes

5" 125 141 111 148 122.6 141.3 137.03 15.88 9.53 32 90 206 158 52 114 150 14X14 F07 70 4-Φ10

6" 150 177 133 148 148 168.3 163.96 15.88 9.53 32 90 206 158 52 114 150 17X17 F07 70 4-Φ10

8" 200 200 164 133 199 219.1 214.4 19.05 11.10 45 125 310 239 69 167 300 17X17 F10 102 4-Φ12

10" 250 280 196 159 252 273.0 268.28 19.05 12.70 45 125 310 239 69 167 300 22X22 F10 102 4-Φ12

12" 300 300 226 165 300.5 323.9 318.29 19.05 12.70 45 125 307 229 73 190 300 22X22 F10 102 4-Φ12

Note: Valve must not be installed with disc in full open position. Disc must be partly closed so that no part is protruding beyond end of valve body.
 American Valves 55

AWWA Check Valve

• Statement:
Check valves serve to prevent the backflow of medium in the piping system for
protection of important equipments, widely used in the field of potable water, water
supply and drainage, sewage disposal, irrigation, air conditioning, fire protection as well
as chemical and energy industry.

• Features:
1. Material: Ductile Iron ASTM A536, 65-45-12
Valve body, bonnet, disc are all produced in ductile iron material which provides
guarantee for high strength and good corrosion resistance.
2. Fusion Bonded Epoxy Coating
Fusion bonded epoxy coating in accordance with ANSI/AWWA C550 for both interior
and exterior surface which provides reliable corrosion resistance.
3. Small Hydraulic Friction Loss with Reasonable Structure Design
• Body & Bonnet: Ductile Iron

• Disc: D.I.+EPDM or D.I. + Bronze

or Stainless Steel Sealing

• Bronze or Stainless Steel Seat

• Fusion Bonded Epoxy Coating

H44X2 H44XW H44J DH77X

Swing Check Valve Swing Check Valve with Weight & Lever Rubber Disc Swing Check Valve Double Door Wafer Check Valve
Page 56 Page 57 Page 58 Page 59

DH74X HC41X
Single Door Wafer Check Valve Silent Check Valve
Page 60 Page 61
For Waterworks Purposes
 56

AWWA C508 Swing Check Valve

(H44X2/H44T2), NSF Approved

MATERIAL SPECIFICATION

Part No. Part Standard Specification Options

1 Valve Body ASTM A536, 65-45-12
2 Bonnet ASTM A536, 65-45-12
H44X2
3 Eye Bolt Carbon Steel Zinc Plated
4 O-Ring EPDM NBR, Graphite+Steel
• Connection Ends: Flange to ASME B16.1 CL 125
5 Hinge Pin AISI 304
• Working Pressure: 300PSI
6 Hinge Bushing Brass ASTM B16 C36000/Hpb63-3
200PSI and 250PSI available upon request
Bronze ASTM B62 AISI 304, AISI 316 Pressed Fit or
7 Seat Ring
• Temperature Range: Rubber Seal: 0℃- 80℃, C83600/ZQSn5-5-5(Pressed Fit) Threaded
Metal Seal: -10℃- 200℃ 8 Disc Seat Bolt AISI 304

• Coating: Fusion Bonded Epoxy Coating in accordance with 9 Retainer Washer Bronze ASTM B62 C83600/ZQSn5-5-5
ANSI/AWWA C550 or painting upon request 10 Disc Sealing Ring EPDM AISI 304, AISI 316, Bronze ASTM B62
11 Disc ASTM A536, 65-45-12
12 Clapper Arm ASTM A536, 65-45-12
13 Stud Bushing Brass ASTM B16 C36000/Hpb63-3
14 O-Ring NBR EPDM
15 Nut AISI 304 AISI 316

Note: For special material request other than standard specification, please indicate clearly on the inquiry or order list.

DN Dimensions(mm)
Inch mm L D D1 b n-Φd H
2" 50 203 152 120.5 16 4-Φ19.1 133
2.5" 65 254 178 139.5 17.5 4-Φ19.1 150
3" 80 278 191 152.5 19 4-Φ19.1 150
4" 100 330 229 190.5 24 8-Φ19.1 218
6" 150 406 279 241.5 25.5 8-Φ22.2 290
8" 200 495 343 298.5 28.5 8-Φ22.2 330
10" 250 622 406 362 30.5 12-Φ25.4 350
12" 300 660 483 432 32 12-Φ25.4 376
For Waterworks Purposes
 American Valves 57

AWWA C508 Swing Check Valve

with Weight & Lever (H44XW)

MATERIAL SPECIFICATION

Part No. Part Standard Specification Options

1 Valve Body Cast Iron A126 CL B ASTM A536, 65-45-12
2 Seat Ring Bronze ASTM B62 (Pressed Fit) AISI 304, AISI 316 Pressed Fit or Threaded
3 Disc ASTM A536, 65-45-12
H44XW
4 Disc Sealing Ring EPDM AISI 304, AISI 316, Bronze ASTM B62

• Connection Ends: Flange to ASME B16.1 CL 125 5 Bolt AISI 304 AISI 316
6 Clapper Arm ASTM A536, 65-45-12
• Working Pressure: 200PSI
7 Bonnet Gasket EPDM
250PSI and 300PSI available upon request
8 Bonnet Cast Iron A126 CL B ASTM A536, 65-45-12
• Temperature Range: 0℃- 80℃
9 Bolt Carbon Steel Zinc Plated AISI 316
• Coating: Fusion Bonded Epoxy Coating in accordance with 10 Weight Cast Iron A126 CL B ASTM A536, 65-45-12
ANSI/AWWA C550 11 Lever Carbon Steel Zinc Plated
12 Nut Brass ASTM B36
13 O-Ring NBR EPDM
14 Hinge Bushing Brass ASTM B36
15 Hinge Pin AISI 304 AISI 316

Note: For special material request other than standard specification, please indicate clearly on the inquiry or order list.

DN Dimensions(mm)
Inch mm L D D1 b n-Φd H
2" 50 203 152 120.5 16.5 4-Φ19.1 145
2.5" 65 216 178 139.5 19 4-Φ19.1 157
3" 80 241 191 152.5 19 4-Φ19.1 173
4" 100 292 229 190.5 24 8-Φ19.1 176
6" 150 356 279 241.5 25.5 8-Φ22.2 238
8" 200 495 343 298.5 28.5 8-Φ22.2 273
10" 250 622 406 362 30.5 12-Φ25.4 329
12" 300 698 483 432 32 12-Φ25.4 358
14" 350 787 533 476 35 12-Φ28.5 470
16" 400 914 597 540 36.5 16-Φ28.5 535
For Waterworks Purposes
 58

AWWA C508 Rubber Disc

Swing Check Valve (H44J)

MATERIAL SPECIFICATION

Part No. Part Standard Specification Options

1 Valve Body ASTM A536, 65-45-12

2 Bolt Carbon Steel Zinc Plated AISI 304, AISI 316

H44J
3 Washer Carbon Steel Zinc Plated AISI 304, AISI 316

• Connection Ends: Flange to ASME B16.1 CL 125 4 Disc Carbon Steel+EPDM Carbon Steel+NBR

• Working Pressure: 300PSI 5 Bonnet ASTM A536, 65-45-12

200PSI and 250PSI available upon request
6 Bonnet Gasket EPDM
• Temperature Range: 0℃- 80℃
7 Plug Malleable Iron Galvanized Bronze ASTM B584
• Coating: Fusion Bonded Epoxy Coating in accordance with
Note: For special material request other than standard specification, please indicate clearly on the inquiry or order list.
ANSI/AWWA C550

DN Dimensions(mm)
Inch mm L D D1 b n-Φd
2" 50 203 152 120.5 16 4-Φ19.1
2.5" 65 216 178 139.5 17.5 4-Φ19.1
3" 80 241 191 152.5 19 4-Φ19.1
4" 100 292 229 190.5 24 8-Φ19.1
5" 125 330 254 216 24 8-Φ22.2
6" 150 356 279 241.5 25.5 8-Φ22.2
8" 200 495 343 298.5 28.5 8-Φ22.2
10" 250 622 406 362 30.5 12-Φ25.4
12" 300 698 483 432 32 12-Φ25.4
For Waterworks Purposes
 American Valves 59

API 594 Double Door Wafer

Check Valve (DH77X)

MATERIAL SPECIFICATION
DH77X
Part No. Part Standard Specification Options
1 Valve Body ASTM A536, 65-45-12
• Connection Ends: ASME B16.1 CL 125, ASME B16.5 CL 150
2 Disc ASTM A536, 65-45-12 AISI 304, AISI 316, AL-Bronze UNC 95400
• Working Pressure: 300PSI 3 Stem AISI 420 AISI 304, AISI 316, AISI 416
200PSI and 250PSI available upon request 4 Spring AISI 304 AISI 316
• Temperature Range: 0℃- 80℃ 5 Rubber Seat EPDM NBR

• Coating: Fusion Bonded Epoxy Coating in accordance with Note: For special material request other than standard specification, please indicate clearly on the inquiry or order list.
ANSI/AWWA C550

DN Dimensions(mm)
Inch mm L D D1 D2
2" 50 54 102 64 46
2.5" 65 54 121 78 60
3" 80 57 134 94 70
4" 100 64 162 117 84
5" 125 70 192 145 115
6" 150 76 218 170 134
8" 200 95 273 224 184
10" 250 108 328 265 220
12" 300 143 408 310 260
14" 350 184 449 360 302
16" 400 191 512 410 350

For Waterworks Purposes

 60

Single Door Wafer Check Valve

(DH74X)

MATERIAL SPECIFICATION
DH74X Part No. Part Standard Specification Options
1 Valve Body ASTM A536, 65-45-12
• Connection Ends: ASME B16.1 CL 125, ASME B16.5 CL 150
2 Disc AISI 304 AISI 316, AL-Bronze UNC 95400
• Working Pressure: 300PSI 3 Screw Carbon Steel AISI 304, AISI 316
200PSI and 250PSI available upon request 4 Gasket EPDM NBR
• Temperature Range: 0℃- 80℃ 5 Stem AISI 420 AISI 304, AISI 316, AISI 416

• Coating: Fusion Bonded Epoxy Coating in accordance with 6 Gasket PTFE

ANSI/AWWA C550 7 Spring AISI 304 AISI 316

8 Lifting Hook Carbon Steel Zinc Plated

Note: For special material request other than standard specification, please indicate clearly on the inquiry or order list.

DN Dimensions(mm)
Inch mm L D E F D1
2" 50 44.5 64 33 60 107
2.5" 65 48.0 79 42.9 73 127
3" 80 51.0 94 52.4 83.5 142
4" 100 57.0 118 76 106 162
5" 125 63.5 147 95 128 192
6" 150 70.0 178.5 118 150 218
8" 200 73.0 235 163.5 200 273
10" 250 79.0 281 194 238 329
12" 300 86.0 335 241.5 287 384
For Waterworks Purposes
 American Valves 61

MSS SP-126 Silent

Check Valve (HC41X)

MATERIAL SPECIFICATION
HC41X Part No. Part Standard Specification Options
1 Valve Body ASTM A536, 65-45-12
• Connection Ends: Flange to ASME B16.1 CL 125
2 Stem AISI 420 AISI 304, AISI 316, AISI 431
• Working Pressure: 300PSI 3 Hinge Bushing ASTM B62
200PSI and 250PSI available upon request 4 Spring AISI 304 AISI 316
• Temperature Range: 0℃- 80℃ 5 Nut AISI 304 AISI 316

• Coating: Fusion Bonded Epoxy Coating in accordance with 6 Disc ASTM A536, 65-45-12 Bronze Plated

ANSI/AWWA C550 or painting upon request 7 O-Ring EPDM NBR

8 Hinge Bushing ASTM B62
9 Seat ASTM A536, 65-45-12 Bronze Plated
10 O-Ring NBR EPDM
11 Screw Carbon Steel Zinc Plated AISI 304, AISI 316

Note: For special material request other than standard specification, please indicate clearly on the inquiry or order list.

DN Dimensions(mm)
Inch mm L D D1 C n-ΦL
2" 50 120 152 120.5 16 4-Φ19.1
2.5" 65 135 178 139.5 17.5 4-Φ19.1
3" 80 155 191 152.5 19 4-Φ19.1
4" 100 165 229 190.5 24 8-Φ19.1
5" 125 190 254 216 24 8-Φ22.2
6" 150 210 279 241.5 25.5 8-Φ22.2
8" 200 260 343 298.5 28.5 8-Φ22.2
10" 250 285 406 362 30.5 12-Φ25.4
12" 300 315 483 432 32 12-Φ25.4

For Waterworks Purposes

 62

Y-Type Strainer

• Statement:
Installed before relief valves, atmospheric valves, hydraulic control valves as well as other
equipments,strainersservetofilterouttheimpuritiesintheflowmediumforprotectionof
valves and equipments in the piping system.
• Features:
1. Material: Ductile Iron ASTM A536, 65-45-12
Valvebodyandcoverareproducedinductileironmaterialwhichprovidesguaranteefor
high strength and good corrosion resistance.
2. Different Options of Screen Mesh Specification
Different options of screen mesh specification available as per different service
conditions.
3. Fusion Bonded Epoxy Coating
FusionbondedepoxycoatinginaccordancewithANSI/AWWAC550forbothinteriorand
• Ductile Iron Body & Bonnet
exterior surface which provides reliable corrosion resistance.
• Stainless Steel Screen

• Fusion Bonded Epoxy Coating

• Gasket: EPDM or Graphite + Acanthopore Plate

V4 V1
Flanged Y-Type Strainer Threaded Y-Type Strainer
Page 63 Page 64
For Waterworks Purposes
 American Valves 63

Flanged Y-Type Strainer (V4)

V4 MATERIAL SPECIFICATION

Part No. Part Standard Specification Options

• Connection Ends: Flange to ASME B16.1 CL 125
1 Valve Body ASTM A536, 65-45-12
• Working Pressure: 300PSI AISI 304, AISI 316
2 Screen AISI 304 (Perforated)
200PSI and 250PSI available upon request (Perforated, Knitted, Double Screen)

• Temperature Range: -10℃- 200℃ graphite gasket 3 Gasket Graphite + Acanthopore Plate EPDM
0℃- 80℃ rubber gasket 4 Bonnet ASTM A536, 65-45-12

• Coating: Fusion Bonded Epoxy Coating in accordance with 5 Plug Malleable Iron Galvanized Bronze ASTM B584

ANSI/AWWA C550 6 Bolt Carbon Steel Zinc Plated AISI 304, AISI 316
7 Flat Washer Carbon Steel Zinc Plated AISI 304, AISI 316

STANDARD SCREEN

DN Hole Dia. Free Flow Area(%)

Sieve No.
Inch mm mm %
11/2"~6" 40~150 120 1.5 33
8"~12" 200~300 47 2 23
14"~16" 350~400 61 2 30

Note: For special material request other than standard specification, please indicate clearly on the inquiry or order list.

DN Dimensions(mm)
Inch mm L D D1 b n-Φd H
2" 50 200 152 120.5 16 4-Φ19.1 155
2.5" 65 254 178 139.5 17.5 4-Φ19.1 165
3" 80 257 191 152.5 19 4-Φ19.1 180
4" 100 308 229 190.5 24 8-Φ19.1 229
5" 125 397 254 216 24 8-Φ22.2 285
6" 150 470 279 241.5 25.5 8-Φ22.2 311
8" 200 549 343 298.5 28.5 8-Φ22.2 394
10" 250 654 406 362 30.5 12-Φ25.4 487
For Waterworks Purposes

12" 300 759 483 432 32 12-Φ25.4 547

 64

Threaded Y-Type Strainer (V1)

V1
MATERIAL SPECIFICATION

Part No. Part Standard Specification Options

• Connection Ends: Thread to ANSI/ASME B1.20.1
1 Valve Body ASTM A536, 65-45-12
• Working Pressure: 400PSI @-29℃to 66℃
2 Screen AISI 304 AISI 316
250PSI @208℃
3 Sealing Washer Graphite + Acanthopore Plate PTFE
• Coating: Painting 4 Cover ASTM A536, 65-45-12
5 Plug Malleable Iron Galvanized

Note: For special material request other than standard specification, please indicate clearly on the inquiry or order list.

DN Dimensions(mm)
Inch mm A B(max) Plug t t1
1/4" 8 81 55 1/4" 2.4 2.4
3/8" 10 81 57 1/4" 2.5 2.5
1/2" 15 81 70 3/8" 2.54 2.54
3/4" 20 95 72 3/8" 3 3
1" 25 102 78 1/2" 4.06 4.06
11/4" 32 127 92 1/2" 4.83 4.83
11/2" 40 146 118 1/2" 4.83 4.83
2" 50 177 120 1/2" 5.59 5.59
21/2" 65 234 136 3/4" 5.59 5.59
3" 80 254 150 3/4" 5.59 5.59
For Waterworks Purposes
 American Valves 65

Compound High Speed

Air Bleeding Valve(ZFGP4X)

MATERIAL SPECIFICATION

Part No. Part Standard Specification Options

1 Valve Body ASTM A536, 65-45-12
ZFGP4X 2 Floating Ball AISI 304
3 Nut AISI 304
• Connection Ends: Flange to ASME B16.1 CL 125 4 O-Ring NBR
• Working Pressure: 300PSI 5 Bonnet ASTM A536, 65-45-12
200PSI and 250PSI available upon request 6 Floating Ball Cap ASTM A536, 65-45-12
• Temperature Range: 0℃ - 40℃ 7 Lift Cover AISI 304
8 Stem AISI 304
• Coating: Fusion Bonded Epoxy Coating in accordance with
ANSI/AWWA C550 9 Gasket EPDM
10 Hex Nut Carbon Steel Zinc Plated AISI 304, AISI 316
11 Flat Washer Carbon Steel Zinc Plated AISI 304, AISI 316
12 Hex Bolt Carbon Steel Zinc Plated AISI 304, AISI 316
13 Guide Sleeve H62
14 Draft ASTM A536, 65-45-12

Note: For special material request other than standard specification, please indicate clearly on the inquiry or order list.

DN Dimensions(mm)
Inch mm A B C D n-Φd E F H
2" 50 50 99 125 165 4-Φ19 19 3 278
2.5" 65 65 118 145 185 4-Φ19 19 3 278
3" 80 80 132 160 200 8-Φ19 19 3 302
4" 100 100 156 180 220 8-Φ19 19 3 373
6" 150 150 211 240 285 8-Φ23 19 3 410
8" 200 200 266 295 340 12-Φ23 20 3 504 For Waterworks Purposes
 66

Flexible Rubber Joint Single Sphere

Galvanized Carbon Steel Flange
Connection (XTQ1RF)

MATERIAL SPECIFICATION

Part No. Part Standard Specification

XTQ1RF 1 Flange Galvanized Carbon Steel
2 Reinforcing Ring Carbon Steel
• Connection Ends: Flange to ASME B16.1 CL 125
3 Rubber (Inner) EPDM
• Working Pressure: 300PSI 4 Rubber (Outer) EPDM
175PSI,200PSIand 250PSI available upon request 5 Reinforcing Fabric Nylon Fabric
• Temperature Range: -10℃ - 115℃ Note: For special material request other than standard specification, please indicate clearly on the inquiry or order list.
• Vacuum Capacity: 700MM/HG

DN Neutral Length(mm) Axial(mm) Transverse Angular Deflection

Inch mm L D Ø N-ØH Elongation Compression Movement(mm) Deg.

1 1/4" 32 95 115 88.9 4X15.9 6 10 10 25

1 1/2" 40 95 127 98.5 4X15.9 6 10 10 25
2" 50 105 152 120.7 4X19.1 6 10 10 25
2 1/2" 65 115 178 139.7 4X19.1 8 15 12 25
3" 80 135 191 152.4 4X19.1 8 15 12 25
4" 100 150 229 190.5 8X19.1 12 20 16 15
5" 125 165 254 215.9 8X22.2 12 20 16 15
6" 150 180 279 241.3 8X22.2 12 20 16 15
8" 200 210 343 298.5 12X22.2 12 20 16 15
10" 250 230 406 362 12X25.4 14 30 25 8
12" 300 230 483 431.8 12X25.4 14 30 25 8
14" 350 265 533 476.3 12X28.6 14 30 25 8
16" 400 265 597 539.8 16X28.6 14 30 25 8
18" 450 265 635 577.9 16X31.8 14 30 25 8
20" 500 265 699 635 20X31.8 14 30 25 8
24" 600 265 813 749.3 20X34.9 14 30 25 8
For Waterworks Purposes
 American Valves 67

Flexible Rubber Joint Twin Sphere

Galvanized Carbon Steel Flange
Connection (XTQ2RF)

MATERIAL SPECIFICATION

Part No. Part Standard Specification

1 Flange Galvanized Carbon Steel
XTQ2RF 2 Reinforcing Ring Carbon Steel
3 Rubber (Inner) EPDM
• Connection Ends: Flange to ASME B16.1 CL 125
4 Rubber (Outer) EPDM
• Working Pressure: 300PSI
5 Reinforcing Fabric Nylon Fabric
200PSI and 250PSI available upon request
Note: For special material request other than standard specification, please indicate clearly on the inquiry or order list.
• Temperature Range: -10℃ - 115℃
• Vacuum Capacity: 650MM/HG

DN Neutral Length(mm) Axial(mm) Transverse Angular Deflection

Inch mm L D Ø N-ØH Elongation Compression Movement(mm) Deg.

1 1/4" 32 175 115 88.9 4X15.9 30 45 45 45

1 1/2" 40 175 127 98.5 4X15.9 30 45 45 45
2" 50 175 152 120.7 4X19.1 30 45 45 45
2 1/2" 65 175 178 139.7 4X19.1 30 45 45 45
3" 80 175 191 152.4 4X19.1 35 50 40 30
4" 100 225 229 190.5 8X19.1 35 50 40 30
5" 125 225 254 215.9 8X22.2 35 50 40 30
6" 150 225 279 241.3 8X22.2 35 60 35 15
8" 200 325 343 298.5 12X22.2 35 60 35 15
10" 250 325 406 362 12X25.4 35 60 35 15
12" 300 325 483 431.8 12X25.4 35 60 35 15
14" 350 350 533 476.3 12X28.6 35 60 35 15

For Waterworks Purposes

 68

Flexible Rubber Joint Twin Sphere

Union-Screw End Connection(XTQ2L)

MATERIAL SPECIFICATION
Part No. Part Standard Specification
XTQ2L 1 Union Malleable iron
2 Rubber (Outer) EPDM
• Thread: ISO 7-1 3 Reinforcing Fabric Nylon Fabric
• Working Pressure: 300PSI 4 Rubber (Inner) EPDM
200PSI and 250PSI available upon request
Note: For special material request other than standard specification, please indicate clearly on the inquiry or order list.
• Temperature Range: -10℃ -115℃
• Vacuum Capacity: 500MM/HG

Neutral
DN Thread Axial(mm) Transverse Angular Deflection
Length(mm)
Movement(mm) Deg.
Inch mm L X NPT Elongation Compression
1/2" 15 200 1/2-14 6 22 22 40
3/4" 20 200 3/4-14 6 22 22 40
1" 25 200 1-11.5 6 22 22 40
1 1/4" 32 200 1 1/4-11.5 6 22 22 40
1 1/2" 40 200 1 1/2-11.5 6 22 22 40
2" 50 200 2-11.5 6 22 22 40
2 1/2" 65 240 2 1/2-8 6 22 22 40
3" 80 240 3-8 6 22 22 40
For Waterworks Purposes
 American Valves 69

Hydraulic Control Valve

Cap Plug (Brass H62)

Up Bonnet (ASTM A536,65-45-12)

Up Gland (ASTM A536,65-45-12)

Diaphragm(EPDM)
Bottom Gland (ASTM A536,65-45-12)
• Statement Bushing (Brass H62)
The hydraulic control valve was initially originated in Holand, Israel Middle Bonnet (ASTM A536,65-45-12)
andDenmark, usedfor agricultural irrigation.Laterthe productwas
Stem (AISI 304)
introduced into the United Sates, Canada and Asian countries. It
was from the 1990s when the product first entered China, and ever Bolt (AISI 304)
since its entrance it gets rapidly developped and widely applied in Spring ( Stainless Steel 4Cr13)

different industrie aside from irrigation. Main Disc (ASTM A536,65-45-12)

Main Gasket (EPDM)
The hydraulic control valve produced by Jinan Meide is new style Gland of Main Disc (ASTM A536,65-45-12)
thatabsorbedtheessenceofotherwell-knownbrandswhichmakes Seat (AISI 304)

it better in energy saving, consumption reducing and accurate

adjustingachieving.TheMECHbrandhydrauliccontrolvalveshave Valve Body (ASTM A536,65-45-12)

been widely used in China, Europe and South East Asian countries
in pipe system of irrigation, water supplying, fire protection and Water Head Loss (psi)
air conditioning which has medium of water under 80℃ or other
medium with similar physical and chemical property as water.

• Specifications
Basic Valve: Y-Type Direct-flow
Connection Ends: Flange to ASME B16.1 CL 125
Temperature Range: 0℃- 80℃
Working Pressure: 300PSI
Testing Standard: API 598
DN50
DN65
• Flow Diagram of Basic Valve
Flow Rate (gpm)

DN80

DN100

DN125

DN150

DN200

DN250

DN300
DN350
DN400
DN450
DN500
DN600

DN 50 65 80 100 125 150 200 250 300 350 400 450 500 600

Kv 41 53 105 175 285 402 730 1160 1400 1770 3010 3225 3395 4272

DN Dimensions(mm)

Inch mm L H D D1 b n-ΦL

2" 50 206 170 152 120.5 16 4-Φ19.1

2.5" 65 211 195 178 139.5 17.5 4-Φ19.1

For Waterworks Purposes

3" 80 249 215 191 152.5 19 4-Φ19.1

4" 100 320 255 229 190.5 24 8-Φ19.1

6" 150 414 360 279 241.5 25.5 8-Φ22.2

8" 200 500 450 343 298.5 28.5 8-Φ22.2

10" 250 605 550 406 362 30.5 12-Φ25.4

12" 300 724 645 483 432 32 12-Φ25.4

14" 350 734 700 533 476 35 12-Φ28.5

16" 400 991 790 597 540 36.5 16-Φ28.5

 70

Electromagnetic 1.Statement
SK710X Electromagnetic Control Valve is a diaphragm type of hydraulic control valve driven by the hydraulic
Control Valve pressurewithinthepipingsystem.Thistypeofvalveiswidelyappliedinthefieldofpipingsystemoptimization,
pressure division, water reservoir (tank) backup, change of industrial valves, etc., with its closing and opening
remotely controlled by electric signal.

2.Operational principle
SK710X Electromagnetic Control Valve is controlled by solenoid valve and equipped with normally open (or
normally closed) two positions two ways or two positions three ways solenoid pilot valve, needle valve, mini
strainer and ball valve, etc.
When the normally open solenoid valve is applied, the main valve in most cases will be in open position.
When there is pressure coming from the flow direction, Pressure P1 enters the upper cavity room of the
valve through the guide tube and then comes to the low pressure area through the normally open solenoid
valve. In this way the upper cavity room is not able to form confined space and the disc of the main valve
will be opened at the pressure of P1. When the normally open solenoid valve is closed, pressure P1 will be
accumulated inside the upper cavity which will gradually push the membrane to close the disc and the valve.
For normally closed solenoid valve, the main valve will be in most cases closed and operation principle same
as stated above. The application of the solenoid valve depends on the working environment.
SK710X
In case the water inside the piping system are highly corrosive or with high deposits, user can choose also to
controlthevalvewithmediumfromoutside.It'suptotheoptionoftheclient,dependingondifferentworking
conditions.

3.Property and advantages

• Driven by pressure of pipe system, work automatically without any power-generating. It saves installation
and repairing space.
• Controlled by solenoid valve, save energy and wiring costs, can be used for large range of pressure and
voltage.
• Series of mode of execution can be changed to hand control, normally closed solenoid valve control or
normally open solenoid valve control, etc.
•Dualcavitydesign,withfunctionsoffullyopeningandfullyclosing.Slowshutcausesnopressurefluctuation,
and the diaphragm with support is well protected.
• Channel with straight-flow, slight friction loss, no eddy flow and turbulent flow.
SK710X1 • Long pitch orientation design for stem move, stable and no gap resistance.
•Balancedautomatically,biggapdesignonconnectionofdiscandstem,discisfreeontheverticalflatagainst
stem, it can balance the tolerance from machining and sealing surface. Good connection without leakage.
•Ductileironcastingswithnodularityhigherthan90%,foundryinhousewithadvancedmeltingtechnology
and strict quality control system, testing reports and testing bars can be supplied with order. Records and
testing bars maintained for one year in the factory.
• Good corrosion resistance, with stainless steel, copper alloy, rubber made from DuPont and other rust-
resisting material, fusion bonded epoxy coating both for interior and exterior surface of the basic valve. All
the characteristics in accordance with ANSI/AWWA C550 and other international specifications like WRAS,
NSF61.
For Waterworks Purposes
 American Valves 71

4.Typical installation illustration

5.Common problems and proposed solutions

Common Problems Proposed Solutions

Pressurize in front of the valve but valve can't be opened when Check if needle valve or ball valve in front of the basic valve is
choose condition of normally open and no power. opened. If not, please open it.

Check condition of wiring, make sure action in place and for the
The basic valve can't be closed when choose normally open and solenoid valve and sealing is good condition for the solenoid valve.
shut down the power. Check if there's sundries blocked inside the basic valve. Wash the
mini strainer before basic valve and make sure it's unblocked.

Pressure in front and the valve can't close complete with leakage Check if any damage or blocks on the sealing surface of basic
when choose condition of normally close and no power. valve.

No water after valve, valve is not open when choose condition of Check if solenoid valve is in good working condition. Check if
normally close and electrified. needle valve or ball valve is open in front of the valve.

For Waterworks Purposes

 72

Pressure Reducing Valve 1.Statement

SK720X Pressure Reducing Valve is a diaphragm type of hydraulic control valve driven by the hydraulic
pressure within the piping system. The function of the valve is to reduce the high pressure to the pre-set low
pressure,and despite the fluctuation of medium flow or pressure before the valve the pressure after the valve
will always remain stable and maintain the set pressure range.

2.Operational principle
SK720X Pressure Reducing Valve is controlled by pressure reducing pilot valve and equipped with pressure
reducing pilot valve, needle valve, mini strainer and ball valve, etc.
Undernormalconditions,waterflowcomescontinuouslyfromtheinletopeningtotheuppercavityroom(2)of
the basic valve through the needle valve (1); When the pressure before the pilot valve (3) is lower than its pre-
set value, the pilot valve will remain at full open position and the upper cavity room of the basic valve is not
able to get accumulating pressure. Under this condition, the disc of the basic valve will be open at the water
pressure from the inlet opening to allow water flow. The pressure reducing pilot valve closes gradually when
the pressure after pilot valve exceeds its pre-set value. Pressure gets accumulated within the upper cavity
room and membrane drives the disc down to close the valve till the pressure after the pilot valve gradually
SK720X reduces to its pre-set value. The pilot valve opens again when the pressure after the valve becomes lower
than the pre-set value, and the basic valve will then open with the release of the accumulated pressure in the
upper cavity room.
The throttle orifice (5) that connects the lower cavity to the outlet serves to keep the reaction of the valve
gentle and stable. The ball valve (4) controls the outlet water flow rate from the upper cavity room andthusto
stabilize the action of the basic valve. The ball valve can be adjusted with different working conditions. In case
of emergency, the ball valve can also be closed manually for cutting off of the basic valve.

3.Property and advantages

• Driven by pressure of pipe system, work automatically with energy of pipe system to achieve energy
conservation and environment protection.
• Controlled by the pilot valve, lower energy consumption, achieve accurate pressure reducing results, have
function of stabilizing pressure after the valve.
•Dualcavitydesign,withfunctionsoffullyopeningandfullyclosing.Slowshutcausesnopressurefluctuation,
and the diaphragm with support is well protected.
• Have internal orifice, connect bottom cavity and outlet of the basic valve, make sure stability of reaction to
SK720X1 keep stability of pressure after the valve, avoid any vibration and noise.
• Channel with straight-flow, slight friction loss, no eddy flow and turbulent flow, cut down the damage of
cavitation.
• Long pitch orientation design for stem move, stable and no gap resistance.
•Balancedautomatically,biggapdesignonconnectionofdiscandstem,discisfreeontheverticalflatagainst
stem, it can balance the tolerance from machining and sealing surface. Good connection without leakage.
Achieve functions of both reducing dynamic pressure and reducing static pressure.
•Ductileironcastingswithnodularityhigherthan90%,foundryinhousewithadvancedmeltingtechnology
and strict quality control system, testing reports and testing bars can be supplied with order. Records and
testing bars maintained for one year in the factory.
• Good corrosion resistance, with stainless steel, copper alloy, rubber made from DuPont and other rust-
resisting material, fusion bonded epoxy coating both for interior and exterior surface of the basic valve. All
the characteristics in accordance with ANSI/AWWA C550 and other international specifications like WRAS,
NSF61.
For Waterworks Purposes
 American Valves 73

4.Typical installation illustration

5.Basic Parameters
Working Pressure
Pressure Symbol Unit
175PSI 250PSI 300PSI

Max. Inlet pressure P1max 1.0 1.6 2.5

Min. Inlet pressure P1min P2max + 0.2

Max. Outlet pressure P2max 0.8 1.0 1.6

Min. Outlet pressure P2min MPa 0.05

Characteristics of flow deviation ΔP2Q ≤10%

Pressurecharacteristicdeviation ΔP2p ≤5%

Min. pressure deviation ΔPmin 0.2

6.Notes for installation and debugging

AllthePressureReducingValveshavebeenfinishedinitialdebuggingtestsbeforedelivery.Furtherdubugging
test is also suggested during using according to different working conditions.
After the pipe system becomes stable, please loose the adjusting screw on the top of pilot valve to the top-
most position.
Tighten adjusting screw of pilot valve in clockwise slowly. When outlet pressure increase to the set pressure
please fasten the locknut under the adjusting screw.
If go beyond the set pressure during adjusting, please repeat the above steps. Remember, pressure can be
only adjusting from low level to high level and pay attention to make the adjusting slowly.

7.Common problems and proposed solutions

Common Problems Proposed Solutions

a.Check if any sundries on the sealing surface of basic valve or pilot valve.
b.Check if any damage on the sealing surface of basic valve or pilot valve.
Outlet pressure is similar with inlet
c.Check if any damage or fatigue on spring of basic valve or pilot valve.
pressure, no pressure reduction.
d.Check if any damage or fatigue on diaphragm of basic valve or pilot valve.
e.Check if any corrosion or blocking on stem of basic valve or pilot valve.

a.Close the needle valve before the basic valve and open 1/4 turns slowly. Open the big hex
For Waterworks Purposes

screw on the top of bonnet, release air. Adjust the needle valve on inlet conduit slowly
Strong vibration and noise.
until no vibration.
b.Calculate the flow again and collect proper size of valve or add throttling set.

a.Check if pressure is fluctuating strongly at inlet. Try to keep it within small range.
Pressure after the valve is not stable. b.Check if required flow is too different than actual flow, recalculate flow and choose new
valve with proper size.
 74

Pressure Relief & 1.Statement

SK730X Pressure Relief & Sustaining Valve is a diaphragm type of hydraulic control valve driven by the
Sustaining Valve hydraulic pressure within the piping system. One prominent feature of the valve is, it can serve as pressure
relief valve and sustaining valve at the same time. As pressure relief valve, it releases the high pressure
before the valve out of the piping system for protection of the pipes and the equipments when the pressure
exceeds its pre-set value; As pressure sustaining valve, it maintains the water pressure above certain set
value for guarantee of water supply to upstream area
2.Operational principle
SK730X Pressure Relief & Sustaining Valve is controlled by pressure relief/sustaining pilot valve and
equipped with pressure relief/sustaining pilot valve, needle valve, mini strainer and ball valve, etc.
As Pressure relief valve, the valve is connected with branch pipe and directed to lower pressure area or
drainage ditch. In normal working conditions, water flow enters the upper cavity room (2) through needle
valve (1). When the pressure before the pilot valve (3) is lower than its pre-set value A, the pilot valve will
remain closed and the water that enters the upper cavity room drives the membrane down and closes the
disc and the basic valve. The pilot valve opens when the pressure before the valve exceeds its pre-set
value and the pressure accumulated in the upper cavity room gets released. Under the pressure from the
inlet opening, the disc of the basic valve opens. In this way the pressure within the piping system will be
SK730X
maintained under the pre-set value A.
As pressure sustaining valve, the valve is connected in series with the main pipe and serves to maintain
the pressure before valve above the set value B. Under normal conditions, water flow comes continuously
fromtheinletopeningtotheuppercavityroom(2)ofthebasicvalvethroughtheneedlevalve(1);Whenthe
pressure before the pilot valve (3) is lower than its pre-set value, the pilot valve will remain closed and the
water that enters the upper cavity room drives the membrane down and closes the disc and the basic valve
for accumulation of pressure till equals to the set value B. The pilot valve opens when the pressure before
the valve exceeds its pre-set value and the pressure accumulated in the upper cavity room gets released.
Under the pressure from the inlet opening, the disc of the basic valve opens to allow water flow. In this way
the pressure within the piping system will be maintained under the pre-set value B.

3.Property and advantages

• Driven by pressure of pipe system, work automatically with energy of pipe system to achieve energy
conservation and environment protection.
•Controlledbypilotvalve,lowerenergyconsumption,achieveaccuratepressurereliefandpressureholding
SK730X1 results, reliable and safe.
•Dualcavitydesign,withfunctionsoffullyopeningandfullyclosing.Slowshutcausesnopressurefluctuation,
and the diaphragm with support is well protected.
• Have internal orifice, connect bottom cavity and outlet of the basic valve, make sure stability of reaction to
keep stability of pressure after the valve, avoid any vibration and noise.
• Channel with straight-flow, slight friction loss, no eddy flow and turbulent flow, cut down the damage of
cavitation.
• Long pitch orientation design for stem move, stable and no gap resistance.
•Balancedautomatically,biggapdesignonconnectionofdiscandstem,discisfreeontheverticalflatagainst
stem, it can balance the tolerance from machining and sealing surface. Good connection without leakage.
•Ductileironcastingswithnodularityhigherthan90%,foundryinhousewithadvancedmeltingtechnology
and strict quality control system, testing reports and testing bars can be supplied with order. Records and
testing bars maintained for one year in the factory.
• Good corrosion resistance, with stainless steel, copper alloy, rubber made from DuPont and other rust-
resisting material, fusion bonded epoxy coating both for interior and exterior surface of the basic valve. All
the characteristics in accordance with ANSI/AWWA C550 and other international specifications like WRAS,
NSF61.
For Waterworks Purposes
 American Valves 75

4.Typical installation illustration

For Pressure Relief For Pressure Sustaining

5.Basic Parameters

Working Pressure
Pressure Symbol Unit
175PSI 250PSI 300PSI

Set Pressure ≤0.83 ≤1.33 ≤1.7

Ps
Set Pressure Ps＜0.5: ±0.014 MPa;
Difference Ps≥0.5: ±3%Ps

MPa
Open/Close
Ps＜0.3: 0.06MPa;
Pressure ΔPb
Ps≥0.3: 20%Ps
Difference

Discharge
Pd ≤1.2Ps
pressure

6.Notes for installation and debugging

All the Pressure Relief & Sustaining Valves have been finished initial debugging tests before delivery and the
set-pressure is 0.6MPa. Further debugging test is also suggested during using according to different working
conditions.
After the pipe system becomes stable, please loose the lock nut under adjusting screw, open the ball valve
or needle valve (1) slightly, when pressurize, adjust the adjust screw on pressure relief pilot valve and fasten
the lock nut when it achieves pressure required. Pay attention that when adjust pressure relief pilot valve,
clockwise is for increasing pressure and anti-clockwise is for reducing pressure.

7.Common problems and proposed solutions

Common Problems Proposed Solutions

a.Check if any sundries on the sealing surface of basic valve or pilot valve.
The pressure of pipe system is lower
b.Check if any damage on the sealing surface of basic valve or pilot valve.
than set-pressure,the valve dose not
c.Check if any damage or fatigue on spring of basic valve or pilot valve.
close.
For Waterworks Purposes

d.Check if any damage or fatigue on diaphragm of basic valve or pilot valve.

a.Check if ball valve (4) is closed, if yes, please open it.

The pressure of pipe system is
b.Check if any blocks in basic valve or on stem of pilot valve, if yes, please remove the block
higher than set-pressure, the valve
or change new stem.
dose not open.
c.Check if lock nut and adjust screw were adjusted wrongly, please try to repeat all the actions.
 76

Surge Anticipating Valve 1.Statement

SK735X Surge Anticipating Valve is a diaphragm type of hydraulic control valve driven by the hydraulic
pressure within the piping system. The valve dissipates surges caused by power failure to pumps. The
valve anticipates the surge by opening on low line pressure associated with sudden stopping of pumps. This
assures that the valve is open when the return high pressure surge arrives.

2.Operational principle
The valve is closed when the line pressure is between the set points of the two pilots. The valve opens when
the line pressure drops below the setting of Low Surge Pilot. The valve also opens when the line pressure
exceeds the setting of High Surge Pilot.
Main Valve is normally open when pressure is applied to the valve inlet. When this same pressure is appliedto
the bonnet, the Main Valve closes tight because the area of the diaphragm is greater than the area of theseat.
Pressure above the diaphragm determines the position of the Main Valve.
Bonnet pressure is controlled with a pilot circuit consisting primarily of the following items:
1. A pilot line from the header to the bonnet including parts composed of Strainer etc.
2. Two pilot lines from the Main Valve bonnet through the outlet of the Main Valve.
Pressure from the header is directed to the bonnet of the Closing Speed Control, keeping the main valve
closed if there is no flow through the two pilot valves. When one of the pilot valves opens and there is more
flow out of the bonnet than is coming in, the main valve opens.
Pressure from the header is directed to the bonnet of the Closing Speed Control, keeping the main valve
closed if there is no flow through the two pilot valves. When one of the pilot valves opens and there is more
SK735X
flow out of the bonnet than is coming in, the main valve opens.

3.Property and advantages

• Driven by pressure of pipe system, work automatically with energy of pipe system to achieve energy
conservation and environment protection.
•Controlledbypressurereducingpilotvalve,lowerenergyconsumption,achieveaccuratepressurereducing
and able to stabilize the pressure after the valve.
• Controlled by pressure relief and sustaining pilot valve, lower energy consumption, achieve accurate
pressure relief and pressure holding results, reliable and safe.
• Dual cavity design, with functions of fully opening and fully closing. Slow shut causes no pressure
fluctuation, and the diaphragm with support is well protected.
• Channel with straight-flow, slight friction loss, no eddy flow and turbulent flow, cut down the damage of
cavitation.
• Long pitch orientation design for stem move, stable and no gap resistance.
• Balanced automatically, big gap design on connection of disc and stem, disc is free on the vertical flat
against stem, it can balance the tolerance from machining and sealing surface. Good connection without
leakage. Achieve functions of both reducing dynamic pressure and reducing static pressure.
• Ductileironcastingswithnodularityhigherthan90%,foundryinhousewithadvancedmeltingtechnology
and strict quality control system, testing reports and testing bars can be supplied with order. Records and
testing bars maintained for one year in the factory.
• Good corrosion resistance, with stainless steel, copper alloy, rubber made from DuPont and other rust-
resisting material, fusion bonded epoxy coating both for interior and exterior surface of the basic valve. All
the characteristics in accordance with GB/T 17219-2001 and other international specifications like WRAS,
NSF61.
For Waterworks Purposes
 American Valves 77

4.Typical installation illustration

5.Common problems and proposed solutions

Common Problems Proposed Solutions

a.Not able to open under low pressure condition: flow is not large at the time of power
failure and there is no large pressure drop to open the Low Surge Pilot valve. Usually
Main valve not able to open there won't be large pressure fluctuation.
b.Not able to open under high pressure condition: check if the setting of the High Surge
Pilot valve is higher than the high pressure.

a.Unfasten the fitting that connects the pilot valve and the main valve. If there is no
leakage of water, check then if the strainer or the needle valve at the inlet of the valve
Main valve not able to close is blocked.
b.If there is leakage and the main valve not able to close, check if there is damage to the
valve diaphragm, disc or seat, or if the main valve is blocked.

For Waterworks Purposes

 78

1.Statement
Pump Control Valve SK745X Pump Control Valve is a diaphragm type of hydraulic control valve driven by the hydraulic pressure
within the piping system, widely applied in the pump outlet for prevention of medium back-flow, pressure
fluctuationandwaterhammerformation.Undernormalworkingconditions,pressurebeforethevalveishigher
than pressure after, and the valve remains fully open. When pressure after valve exceeds pressure before
valve,the valve is capable to be closed rapidly to prevent backflow of water and protect the pump andpiping
system. The design of the valve incorporates the function of slow-opening, quick closing, slow closing and
water hammer absorption, no large pressure fluctuation within the system.

2.Operational principle
SK745X Pump Control Valve is composed of mini strainer and ball valve, etc.
Before the pump starts, there is no pressure before the valve, and disc (5) is closed under the pressure from
the spring. With the start of the pump, the pressure before the valve increases gradually. At the same time,
the pressure water enters the lower cavity room (2) through the ball valve (1). The two combined force opens
the discof the basic valve rapidly to allow water supply. When the pump stops (as planned or out of accident),
pressure before the valve suddenly declines. Pressure after valve exceeds that before the valve. As a result,
the higher pressure flows back to the upper cavity room through the ball valve (4) and gets accumulated to
drivethemembranedowntoclosethevalvedisc(5).Thepressurewithinthelowercavityroom(2)discharges
SK745X to the lower pressure area before the basic valve through ball valve (1), which slows down the closing process
to prevent formation of water hammer.
The opening and closing speed of the valve can be controlled by adjustment of the ball valve(1) & (4). For this
valve, there is also another option with dual disc design, especially good for working in complicated piping
system and working conditions where there is tremendous pressure and water back-flow.

3.Property and advantages

• Driven by pressure of pipe system, work automatically with energy of pipe system to achieve energy
conservation and environment protection.
•Dualcavitydesign,withfunctionsoffullyopeningandfullyclosing.Slowshutcausesnopressurefluctuation,
and the diaphragm with support is well protected.
• Stable when open and close, the speed of opening and closing can be adjusted according to working
conditions to avoid pressure fluctuation and water hammer. It can achieve real silence.
• Dual disc, customer can choose design of main disc + second disc. Main disc will fall freely with its weight
when pump stop working, then 90% of inlet of basic valve will be will closed, the water will not causepump
reversing. The second disc will close the 10% left slowly by the pressure of controlling cavity then huge
energy of water hammer will be eliminated.
• Channel with straight-flow, slight friction loss, no eddy flow and turbulent flow, cut down the damage of
cavitation.
• Long pitch orientation design for stem move, stable and no gap resistance.
• Balanced automatically, big gap design on connection of disc and stem, disc is free on the vertical flat
against stem, it can balance the tolerance from machining and sealing surface. Good connection without
leakage. Achieve functions of both reducing dynamic pressure and reducing static pressure.
•Ductileironcastingswithnodularityhigherthan90%,foundryinhousewithadvancedmeltingtechnology
and strict quality control system, testing reports and testing bars can be supplied with order. Records and
testing bars maintained for one year in the factory.
• Good corrosion resistance, with stainless steel, copper alloy, rubber made from DuPont and other rust-
resisting material, fusion bonded epoxy coating both for interior and exterior surface of the basic valve. All
the characteristics in accordance with ANSI/AWWA C550 and other international specifications like WRAS,
NSF61.
For Waterworks Purposes
 American Valves 79

4.Typical installation illustration

5.Technical Parameter

Working Pressure
Pressure Symbol Unit
175PSI 250PSI 300PSI

Min Closing Pressure Pg MPa ≤0.05

Slow-shut Time t s 2～60

Note: Slow-shut time can be adjusted as per request

6.Common problems and proposed solutions

Common Problems Proposed Solutions

a.Check if there's gas in the upper cavity room. Loose the hex brass nut on the top of bonnet to
Strong vibration and noise when discharge gas.
start-up the pump. b.Adjust the ball valve (1) at inlet to proper opening speed.
c.Recalculate the flow and choose new valve with proper size or add throttling set.

Strongvibrationandnoisewhenstop a.Adjust ball valve (4) to proper closing speed.

the pump. b.Consider to choose design of dual discs.

a.Check if there's sundries on the sealing surface of main disc or second disc.
b.Check if damage on sealing surface of main disc or second disc.
Valve does not work and cause
c.Check if stem corroded or blocked.
pump's reversing.
d.Check if damage on diaphragm.
If any damaged parts found, please change new one.

For Waterworks Purposes

 80

Remote Float Control Valve 1.Statement

SK750X Remote Float Control Valve is a diaphragm type of hydraulic control valve driven by the hydraulic
pressure within the piping system, designed with adjustable parallel float. The valve is capable to maintain
the water surface at set position despite the fluctuation of flow rate and widely applied where there is water
reservoir or water box for injection of water.
2.Operational principle
SK750XRemoteFloatControlValveiscontrolledbyanglevalve,floatandballlever,andequippedwithneedle
valve, mini strainer and ball valve, etc.
Under normal conditions, water flow comes continuously from the inlet opening to the upper cavity room
(2) of the basic valve through the needle valve (1); When the float is not reaching the set position, the angle
valve4remainsopen.Thewaterthatenterstheuppercavityroomofthebasicvalvedischargesintothewater
tank and no accumulation within. Under this condition, the disc of the basic valve remains open at the water
pressure from the inlet opening to allow water supply to the water tank. With the raising of the water surface,
the float (6) gradually raises and closes the angle valve (4). Pressure gets accumulated within the upper cavity
SK750X room and drives the membrane down to close disc and the basic valve gradually. When the water surface
reaches the set position, the angle valve close completely and so with the basic valve and the water supply
stops. When water position declines, the pressure within the upper cavity room gets released through the
angle valve and the basic valve opens to continue with water supply.
Needle valve (1) serves to control the closing speed of the valve to prevent formation of water hammer; In
case the float is not working, ball valve (3) can close the basic valve for emergency cut-off.
3.Property and advantages
• Driven by pressure of pipe system, work automatically with energy of pipe system to achieve energy
conservation and environment protection.
•Controlledbyanglevalveandfloat,lowerenergyconsumption,achieveaccuratelevellimit,slowlyshutand
avoid close valve water hammer.
• Separate angle control, including separate angle valve, ball lever and float, can be installed separately with
basic valve, suitable for limited installation and repairing space, avoid influence to level measuring by the
SK750X1 wave beside inlet water.
•Dualcavitydesign,withfunctionsoffullyopeningandfullyclosing.Slowshutcausesnopressurefluctuation,
and the diaphragm with support is well protected.
• Have internal orifice, connect bottom cavity and outlet of the basic valve, make sure stability of reaction to
keep stability of pressure after the valve, avoid any vibration and noise.
• Channel with straight-flow, slight friction loss, no eddy flow and turbulent flow, cut down the damage of
cavitation.
• Long pitch orientation design for stem move, stable and no gap resistance.
•Balancedautomatically,biggapdesignonconnectionofdiscandstem,discisfreeontheverticalflatagainst
stem, it can balance the tolerance from machining and sealing surface. Good connection without leakage.
Achieve functions of both reducing dynamic pressure and reducing static pressure.
•Ductileironcastingswithnodularityhigherthan90%,foundryinhousewithadvancedmeltingtechnology
and strict quality control system, testing reports and testing bars can be supplied with order. Records and
testing bars maintained for one year in the factory.
• Good corrosion resistance, with stainless steel, copper alloy, rubber made from DuPont and other rust-
resisting material, fusion bonded epoxy coating both for interior and exterior surface of the basic valve. All
the characteristics in accordance with ANSI/AWWA C550 and other international specifications like WRAS,
NSF61.
For Waterworks Purposes
 American Valves 81

4.Typical installation illustration

5.Technical Parameter
Accuracy of Surface Control: ±25mm

6.Common problems and proposed solutions

Common Problems Proposed Solutions

a.Check if any sundries on the sealing surface of basic valve or pilot valve.
b.Check if any damage on the sealing surface of basic valve or pilot valve.
c.Check if block on lever of controlling angle valve.
Basic valve does not close when d.Check if ball lever has been corrosive and float missing.
water meets specified level and e.Check if any damage for diaphragm.
continue to supply water. During the checking, please close ball valve (3), if the basic valve was closed, please just disregard
method of a, b and e and only check sealing surface of angle valve and ball lever. If the basic valve
does not close when close ball valve (3), please cut off the water supply and check sealing surface
of basic valve, diaphragm and stem. If any damaged parts, please change new one.

a.Check if the float was installed close to water outlet. If yes, please move it to far away from the
Level adjusting is not accurate and water outlet. Or you can use barrel to avoid the affection of the wave.
float jumps strongly. b.Check the location of float and make sure the top-most position which float can catch is the set-
level of the water box.

Tomakesurewaterwon'texceedset-leveldoubleinsurancesisrecommended.That'stoassemble
Reasonable suggestion twopositiontwo-waysolenoidvalvebeforethecontrollinganglevalvetomakesurethatthevalve
can be closed in case of emergency.
For Waterworks Purposes
 82

1.Statement
Slow Shut Control Valve SK760X Slow Shut Control Valve is a diaphragm type of hydraulic control valve driven by the hydraulic
pressure within the piping system, widely applied in the pump outlet for prevention of medium back-flow,
pressurefluctuationandwaterhammerformation.Undernormalworkingconditions,pressurebeforethevalve
is higher than pressure after, and the valve remains fully open. When pressure after valve exceeds pressure
before valve, the valve is capable to be closed rapidly to prevent backflow of water and protect the pump and
piping system. The design of the valve incorporates the function of slow-opening, quick closing, slow closing
and water hammer absorption, no large pressure fluctuation within the system.

2.Operational principle
SK760X Slow Shut Control Valve is composed of needle valve, mini strainer and ball valve, etc.
Before the pump starts, there is no pressure before the valve, and disc (5) is closed under the pressure from
thespring.Withthestartofthepump,thepressurebeforethevalveincreasesgradually.Atthesametime,the
pressure water enters the lower cavity room (2) through the needle valve (1). The two combined force opens
the discof the basic valve rapidly to allow water supply. When the pump stops (as planned or out of accident),
pressure before the valve suddenly declines. Pressure after valve exceeds that before the valve. As a result,
thehigherpressureflowsbacktotheuppercavityroomthroughtheneedlevalve(4)andgetsaccumulatedto
SK760X drivethemembranedowntoclosethevalvedisc(5).Thepressurewithinthelowercavityroom(2)discharges
to the lower pressure area before the basic valve through needle valve (1), which slows down the closing
process to prevent formation of water hammer.
The opening and closing speed of the valve can be controlled by adjustment of the needle valve (1) & (4). For
thisvalve,thereisalsoanotheroptionwithdualdiscdesign,especiallygoodforworkingincomplicatedpiping
system and working conditions where there is tremendous pressure and water back-flow.

3.Property and advantages

• Driven by pressure of pipe system, work automatically with energy of pipe system to achieve energy
conservation and environment protection.
•Dualcavitydesign,withfunctionsoffullyopeningandfullyclosing.Slowshutcausesnopressurefluctuation,
and the diaphragm with support is well protected.
• Stable when open and close, the speed of opening and closing can be adjusted according to working
conditions to avoid pressure fluctuation and water hammer. It can achieve real silence.
• Dual disc, customer can choose design of main disc + second disc. Main disc will fall freely with its weight
SK760X1 when pump stop working, then 90% of inlet of basic valve will be will closed, the water will not causepump
reversing. The second disc will close the 10% left slowly by the pressure of controlling cavity then huge
energy of water hammer will be eliminated.
• Channel with straight-flow, slight friction loss, no eddy flow and turbulent flow, cut down the damage of
cavitation.
• Long pitch orientation design for stem move, stable and no gap resistance.
• Balanced automatically, big gap design on connection of disc and stem, disc is free on the vertical flat
against stem, it can balance the tolerance from machining and sealing surface. Good connection without
leakage. Achieve functions of both reducing dynamic pressure and reducing static pressure.
•Ductileironcastingswithnodularityhigherthan90%,foundryinhousewithadvancedmeltingtechnology
and strict quality control system, testing reports and testing bars can be supplied with order. Records and
5 testing bars maintained for one year in the factory.
• Good corrosion resistance, with stainless steel, copper alloy, rubber made from DuPont and other rust-
resisting material, fusion bonded epoxy coating both for interior and exterior surface of the basic valve. All
the characteristics in accordance with ANSI/AWWA C550 and other international specifications like WRAS,
NSF61.
For Waterworks Purposes
 American Valves 83

4.Typical installation illustration

5.Technical Parameter

Working Pressure
Pressure Symbol Unit
175PSI 250PSI 300PSI

Min Closing Pressure Pg MPa ≤0.05

Slow-shut Time t s 2～60

Note: Slow-shut time can be adjusted as per request

6.Common problems and proposed solutions

Common Problems Proposed Solutions

a.Check if there's gas in the upper cavity room. Loose the hex brass nut on the top of bonnet to
Strong vibration and noise when discharge gas.
start-up the pump. b.Adjust the needle valve (1) at inlet to proper opening speed.
c.Recalculate the flow and choose new valve with proper size or add throttling set.

Strongvibrationandnoisewhenstop a.Adjust needle valve (4) to proper closing speed.

the pump. b.Consider to choose design of dual discs.

a.Check if there's sundries on the sealing surface of main disc or second disc.
b.Check if damage on sealing surface of main disc or second disc.
Valve does not work and cause
c.Check if stem corroded or blocked.
pump's reversing.
d.Check if damage on diaphragm.
If any damaged parts found, please change new one.

For Waterworks Purposes

 84

Pressure Differential 1.Statement

SK780X Pressure Differential By-pass Balancing Valve is a diaphragm type of hydraulic control valve driven by
By-pass Balancing Valve thehydraulicpressurewithinthepipingsystem,widelyappliedinHVACsystemforguaranteeofflowstability
in the air conditioning, refrigeration and heating system and pump working. The valve prevents the effect on
the other pipe branches when there is fluctuation on one branch by balancing of pressure in the radiant and
distributionwatermanifold,thustoprotecttheefficientandsafeworkingoftherefrigerationsetorheatingset.

2.Operational principle
SK780X Pressure Differential By-pass Balancing Valve is composed of pressure balancing pilot valve, needle
valve (or ball valve), mini strainer and ball valve, etc.
SK780X Pressure Differential By-pass Balancing Valve is installed between radiant and distribution water
manifold(watersupplyandwaterreturn).Waterflowenterscontinuouslyfromwatersupplyducttothevalve
inlet and then to the upper cavity room (2) through needle valve (1) (or ball valve). Pilot valve (3) is connected
to the water supply duct and return duct by guide tube (4) and (5) to sensing of the pressure difference and
adjustment of the opening position of the pilot valve accordingly. When the pressure difference is large, pilot
valve opens broadly, the pressure inside upper cavity room (2) declines and the basic valve opens broadly. As
resultthewaterflowbetweenthesupplyandreturnductincreaseandtheentiresystemgetsbalanced.When
the pressure difference is small, pilot valve (3) turns to close at the pressure of the spring, the pressure inside
upper cavity room (2) increase and the basic valve turns to close. As result the water flow between the supply
and return duct decreases and the entire system also gets balanced.
SK780X
3.Property and advantages
• Driven by pressure of pipe system, work automatically with energy of pipe system to achieve energy
conservation and environment protection.
•Dualcavitydesign,withfunctionsoffullyopeningandfullyclosing.Slowshutcausesnopressurefluctuation,
and the diaphragm with support is well protected.
• Antenna type of conduit, See No.4 and 5 conduit, connect with water knockout drum and water collector
(supplying pipe and return pipe), can achieve accurate and reliable adjusting.
• Have internal orifice, connect bottom cavity and outlet of the basic valve, make sure stability of reaction to
keep stability of pressure after the valve, avoid any vibration and noise.
• Channel with straight-flow, slight friction loss, no eddy flow and turbulent flow, cut down the damage of
cavitation.
• Long pitch orientation design for stem move, stable and no gap resistance.
• Balanced automatically, big gap design on connection of disc and stem, disc is free on the vertical flat
against stem, it can balance the tolerance from machining and sealing surface. Good connection without
leakage. Achieve functions of both reducing dynamic pressure and reducing static pressure.
•Ductileironcastingswithnodularityhigherthan90%,foundryinhousewithadvancedmeltingtechnology
and strict quality control system, testing reports and testing bars can be supplied with order. Records and
SK780X1 testing bars maintained for one year in the factory.
• Good corrosion resistance, with stainless steel, copper alloy, rubber made from DuPont and other rust-
resisting material, fusion bonded epoxy coating both for interior and exterior surface of the basic valve. All
the characteristics in accordance with ANSI/AWWA C550 and other international specifications like WRAS,
NSF61.
For Waterworks Purposes
 American Valves 85

4.Typical installation illustration

5.Notes for installation and debugging

The valve has been finished initial debugging tests before delivery. Further debugging test is also suggested
during using according to different set-conditions.
Overreviewpressuremeterofwaterknockoutdrumandwatercollector,adjustpilotvalve(3)accordingtoset-
difference of pressure. Clockwise is for increasing the pressure difference and anti-clockwise is for reducing
pressuredifferencewhensetadjustingscrewonthetopofpilotvalve.Whenadjustingisdone,fastenthelock
nut. Then you'll got set-difference for the pressure no matter how the pressure of pipe system changes.
Adjust needle valve (ball valve) can achieve different movement speed for the basic valve. Normally, it has
been adjusted well before delivery. No further adjusting suggested if no special notice.

6.Common problems and proposed solutions

Common Problems Proposed Solutions

a.Check if any sundries on the sealing surface of basic valve or pilot valve.
Pressure difference is smaller than set-value b.Check if any damage on the sealing surface of basic valve or pilot valve.
and does not reach the set-difference. c.Check if needle valve (ball valve) (1) was closed or almost closed. If yes,
please open it.

Pressuredifferenceisbiggerthanset-valueand a.Check if ball valve (6) at outlet was closed. If yes, please open it.
does not reach the set-difference. b.Check if there's any block for pilot valve.
For Waterworks Purposes

Important notes:
1.The products listed in this catalogue are intended to be assembled only in pipelines of same or lower pressure ratings and
properly installed. In case of special request, please contact with factory for support and confirm.
2.It can happen that the catalogue might not be updated while product design improved. In this case, design of the product
should be as confirmed when order placed.
3.Jinan Meide Casting Co., Ltd. reserves the right for construe of the information provided in this catalogue.
86

Ordering Guide of Hydraulic Control Valve

Piping system (two words) Size in mm (three digitals) Main property(three digitals) Other property(two digitals) Material
of basic valve (one letter) Material of pilot valve (one letter) Pressure in bars (two digitals)

① ③ ④ ⑤

Water supply piping system: WW Basic valve (Dual-chamber diaphragm) SK700X No other special requirements 00 Ductile Iron Q
Drinking water piping system: WD Basic valve (Single-chamber diaphragm) SK400X Special closing and opening speed 03 Carbon Steel C
Aggressive water piping system: WA Basic valve (Piston type) SK800X Non-retuning 06 Stainless Steel P
Air conditioning water piping system: WC With high sensitive pilot valve 09
Electromagnetic control valve SK710X
Heating piping system: WH With electromagnetic valve 12 ⑥
Pressure reducing valve SK720X
With electromagnetic valve and non-return 15
Pressure relief & sustaining valve SK730X Al-bronze T
With overpressure protection pilot valve 18
② Surge Anticipating Valve SK735X Stainless steel P
With dual-disc 21
Pump Control Valve SK745X Cracking pressure lower than 0.05MPa 24
050 ⑦
065 Remote float control valve SK750X With throttle opening 27
10
080 Slow shut control valve SK760X With indication of position 30
16
... Pressure differential by-pass balancing valve SK780X With exhaust unit 33
25
700 Deluge alarm valve SK790X With Double liquid level control 36
With flushing function in up chamber 39
Other special requirement 99

Examples:
DN80,PN16,Dual-chamberdiaphragmtyperemotefloatcontrolvalveforwatersupplypipingsystem,withelectromagneticvalvecontrolling,ductileironbasicvalvebody,
brass pilot valve: WW-080-SK750X-12-QT-16
DN200, PN10, Dual-Chamber diaphragm type slow shut control valve for drinking water piping system, specially used for the pool water (under 0.05MPa), stainless steel
basic valve body, stainless steel pilot valve: WD-200-SK760X-24-PP-10

Notes for Installation of Hydraulic Control Valve

• Check the uniformity of name plate, quality guarantee card and marking on valve products.
• Clean the pipes and make sure no rocks, welding slags and other sundries.
• Horizontal installation is the best choice, and other installing direction can also be chosen and
work properly.
• Strainer is suggested to be installed before the basic valve, besides, maintenance gate valves
were also suggested to be installed before and after the basic valve.
• Make sure the direction of flow is same as arrow on basic valve.
• The protection plugs on the both ends are suggested to be removed just before installation to
avoid sundries coming inside.
•Checktheconnectionofconduitstomakesurenobroken,damageandloosingafterinstallation.
• Check the repairing ball valve to make sure they're open after installation.
 American Valves 87

Roll Groove Dimensions

Roll Grooving Machine

Pipe OD
Nominal Gasket seat Groove Dia C Min.
Groove Width B Groove Depth MaxAllow Flare Dia
Size A Allow wall thickness
Basic Tolerence ±0.76/±0.03 Basic Tolerence D(ref) F
mm/in ±0.76/±0.03 T
mm/in mm/in mm/in mm/in mm/in mm/in mm/in
mm/in mm/in

25 33.7 +0.41 -0.68 15.88 7.14 30.23 -0.38 1.60 34.5 1.8
1 1.327 +0.016 -0.026 0.625 0.281 1.190 -0.015 0.063 1.358 0.071
32 42.4 +0.50 -0.60 15.88 7.14 38.99 -0.38 1.60 43.3 1.8
1¼ 1.669 +0.020 -0.023 0.625 0.281 1.535 -0.015 0.063 1.705 0.071
40 48.3 +0.44 -0.52 15.88 7.14 45.09 -0.38 1.60 49.4 1.8
1½ 1.900 +0.017 -0.020 0.625 0.281 1.779 -0.015 0.063 1.945 0.071
50 60.3 +0.61 -0.61 15.88 8.74 57.15 -0.38 1.60 62.2 1.8
2 2.375 +0.024 -0.024 0.625 0.344 2.250 -0.015 0.063 2.449 0.071
65 73.0 +0.74 -0.74 15.88 8.74 69.09 -0.46 1.98 75.2 2.3
2½ 2.875 +0.029 -0.029 0.625 0.344 2.720 -0.018 0.078 2.961 0.091
65 76.1 +0.76 -0.76 15.88 8.74 72.26 -0.46 1.99 77.7 2.3
2½ 3.000 +0.030 -0.030 0.625 0.344 2.845 -0.018 0.078 3.059 0.091
80 88.9 +0.89 -0.79 15.88 8.74 84.94 -0.46 1.98 90.6 2.3
3 3.500 +0.035 -0.031 0.625 0.344 3.344 -0.018 0.078 3.567 0.091
100 108.0 +1.07 -0.79 15.88 8.74 103.73 -0.51 2.11 109.7 2.3
4 4.250 +0.042 -0.031 0.625 0.344 4.084 -0.020 0.083 4.319 0.091
100 114.3 +1.14 -0.79 15.88 8.74 110.08 -0.51 2.11 116.2 2.3
4 4.500 +0.045 -0.031 0.625 0.344 4.334 -0.020 0.083 4.575 0.091
125 133.0 +1.32 -0.79 15.88 8.74 129.13 -0.51 2.11 134.9 2.9
5 5.250 +0.052 -0.031 0.625 0.344 5.084 -0.020 0.083 5.311 0.114
125 139.7 +1.40 -0.79 15.88 8.74 135.48 -0.51 2.11 141.7 2.9
5 5.500 +0.055 -0.031 0.625 0.344 5.334 -0.020 0.083 5.579 0.114
125 141.3 +1.42 -0.79 15.88 8.74 137.03 -0.56 2.13 143.5 2.9
5 5.563 +0.056 -0.031 0.625 0.344 5.395 -0.022 0.084 5.650 0.114
150 159.0 +1.60 -0.79 15.88 8.74 154.50 -0.56 2.16 161.0 2.9
6 6.250 +0.063 -0.031 0.625 0.344 6.083 -0.022 0.085 6.339 0.114
150 165.1 +1.60 -0.79 15.88 8.74 160.8 -0.56 2.16 167.1 2.9
6 6.500 +0.063 -0.031 0.625 0.344 6.330 -0.022 0.085 6.579 0.114
150 168.3 +1.60 -0.79 15.88 8.74 163.96 -0.56 2.16 170.7 2.9
6 6.625 +0.063 -0.031 0.625 0.344 6.455 -0.022 0.085 6.720 0.114
200A 216.3 +1.60 -0.79 19.05 11.91 211.60 -0.64 2.35 219.8 2.9
8 8.516 +0.063 -0.031 0.750 0.469 8.331 -0.025 0.093 8.653 0.114
200 219.1 +1.60 -0.79 19.05 11.91 214.40 -0.64 2.34 221.5 2.9
8 8.625 +0.063 -0.031 0.750 0.469 8.441 -0.025 0.092 8.720 0.114
250A 267.4 +1.60 -0.79 19.05 11.91 262.60 -0.69 2.40 270.9 3.6
10 10.528 +0.063 -0.031 0.750 0.469 10.339 -0.027 0.095 10.665 0.142
250 273.0 +1.60 -0.79 19.05 11.91 268.28 -0.69 2.39 275.4 3.6
10 10.750 +0.063 -0.031 0.750 0.469 10.562 -0.027 0.094 10.842 0.142
300A 318.5 +1.60 -0.79 19.05 11.91 312.90 -0.76 2.77 322.0 4.0
12 12.539 +0.063 -0.031 0.750 0.469 12.319 -0.030 0.109 12.677 0.158
300 323.9 +1.60 -0.79 19.05 11.91 318.29 -0.76 2.77 326.2 4.0
12 12.750 +0.063 -0.031 0.750 0.469 12.531 -0.030 0.109 12.842 0.158
350 377.0 +1.60 -0.79 23.83 11.91 371.44 -0.76 2.77 379.5 4.5
14 14.842 +0.063 -0.031 0.938 0.469 14.623 -0.030 0.109 14.941 0.177
400 426.0 +1.60 -0.79 23.83 11.91 420.46 -0.76 2.77 428.5 4.5
16 16.772 +0.063 -0.031 0.938 0.469 16.553 -0.030 0.109 16.870 0.177
500 529.0 +1.60 -0.79 25.40 11.91 523.46 -0.76 2.77 533.0 5.0
20 20.827 +0.063 -0.031 1.000 0.469 20.608 -0.030 0.109 20.984 0.197
88

Class 125 Flange and Bolting Dimensions

Flanges Hub Blind Flanges Bolt Holes Bolting

Length
Thickness of Hub Diameter Length
Diameter Wall Diameter Length
NPS Diameter of Flange, Diameter and Diameter of Bolt of Bolt
of Port, thickness, Number of Bolts of Bolts
of Flange, Min., Min., Threads, of Bolt Holes Stud With
I V of Bolts [Notes(7) [Notes(7)
O Q X Min., Circle [Notes(5) Two Nuts
[Note(3)] [Note(4)] anf(8)] and(8)]
[Note(1)] Y and(6)] [Note(7)]
[Note(2)]
1 110 11.1 49 18 25 9.6 79 5/8 4 1/2 45 …
11/4 115 12.7 59 21 32 11.1 89 5/8 4 1/2 51 …
11/2 125 14.3 65 22 38 12.7 98 5/8 4 1/2 51 …
2 150 15.9 78 25 51 14.3 121 3/4 4 5/8 57 …
21/2 180 17.5 91 29 64 15.9 140 3/4 4 5/8 64 …
3 190 19.0 108 30 76 17.5 152 3/4 4 5/8 64 …
31/2 215 20.6 122 32 89 19.0 178 3/4 8 5/8 70 …
4 230 23.8 135 33 102 22.2 191 3/4 8 5/8 76 …
5 255 23.8 164 37 127 22.2 216 7/8 8 3/4 76 …
6 280 25.4 192 40 152 23.8 241 7/8 8 3/4 83 …
8 345 28.6 246 45 203 27.0 299 7/8 8 3/4 89 …
10 405 30.2 303 49 254 28.6 362 1 12 7/8 95 …
12 485 31.8 357 56 305 20.6 432 1 12 7/8 95 …
14 535 32.4 391 57 356 22.2 476 1 1/8 12 1 108 …
16 595 36.5 445 64 406 25.4 540 1 1/8 16 1 114 …
18 635 39.7 499 68 457 27.0 578 1 1/4 16 1 1/8 121 …
20 700 42.9 553 73 508 28.6 635 1 1/4 20 1 1/8 127 …
24 815 47.6 660 83 610 31.8 749 1 3/8 20 1 1/4 140 …
30 985 54.0 … … 762 36.6 914 1 3/8 28 1 1/4 159 …
36 1170 60.3 … … 914 41.3 1086 1 5/8 32 1 1/2 178 222
42 1345 66.7 … … 1066 46.0 1257 1 5/8 36 1 1/2 191 235
48 1510 69.9 … … 1219 50.8 1422 1 5/8 44 1 1/2 197 242
54(9) 1685 76.2 … … … … 1594 2 44 1 3/8 216 267
60(9) 1855 79.4 … … … … 1759 2 52 1 3/8 222 273
72(9) 2195 88.9 … … … … 2096 2 60 1 3/8 241 292
84(9) 2535 98.4 … … … … 2426 2 1/4 64 2 267 324
96(9) 2875 108.0 … … … … 2756 2 1/2 68 2 1/4 292 356

General Note: Dimensions are in millimeters.

Notes:
(1) For facing see para.7.2.(a)
(2) For thread of threaded flanges, see paras.7.5.1 and 7.5.2.
(3) All blind flange NPS 12 and larger must be dished with inside radius equal to the port diameter.
(4) For wall thickness tolerance, see para.7.1.
(5) For flange bolt holes, see para.7.6.
(6) For spot facing, see para.7.7.
(7) For bolts and nuts, see para.8.1.1.
(8) Bolt lengths to be compensated for when bolting steel to gray iron flanges.
(9) NPS 54 through 96 are included for convenience. Pressure-temperature ratings are the user's responsibility.