Accessories

SPP PUMPS, INC.

C a s i n g R e l i e f Va l v e
(IF APPLICABLE)

SPP PUMPS, INC.

 INSTALLATION / OPERATION / MAINTENANCE

MODEL
55L-60
Pressure Relief Control
DESCRIPTION INSPECTION
The 55L-60 Pressure Relief Control is a direct acting, spring loaded, Inspect all parts for damage, or evidence of cross threading. Check
diaphragm type relief valve. It may be used as a self-contained valve or diaphragm for tears. Check stem assembly (4) for abrasions or other
as a pilot control for a Cla-Val Main valve. It opens and closes within damage. Check all metal parts for damage, corrosion or excessive wear.
very close pressure limits. REPAIR AND REPLACEMENT
INSTALLATION Minor nicks and scratches may be polished out using 400 grit wet or dry
sandpaper fine emery or crocus cloth. Replace all O-rings and any
The 55L-60 Pressure Relief Control may be installed in any position.
damaged parts.
The control body (1) has one inlet and one outlet port. Body (1) also has When ordering replacement parts, be sure to specify parts list item
smaller side ports; one on inlet, one on outlet, each with pipe plugs (23) number and all nameplate data.
installed. These smaller side ports are used for control connections or
REASSEMBLY
gauge applications. The body (1) also has one center side port, used as
the sensing line port. A flow arrow is marked on the body casting. In general, reassembly is the reverse of disassembly. However, the
following steps should be observed:
OPERATION
The 55L-60 Pressure Relief Control is normally held closed by the force 1. Lubricate the O-Ring (5) and (6) with a small amount of a good grade
of the compression spring above the diaphragm; control pressure is of waterproof grease, (Dow Corning 44 medium grade or equal).
applied under the diaphragm. Use grease sparingly when installing O-ring (20) into guide stem (21).
2. Install stem assembly (4) into guide stem (21). Use a rotating motion
When the controlling pressure exceeds the spring setting, the disc is lifted with minimum pressure to let stem pass through O-ring. Do Not
off its seat, permitting flow through the control. Cut O-Ring.
When controlling pressure drops below spring setting, the spring returns 3. Install O-ring (6) at top of stem assembly (4). Install guide stem (21)
the control to its normally closed position. and stem assembly (4) into body (1). Use socket to tighten securely.
Place lower diaphragm washer (19) on the stem assembly with the
ADJUSTMENT PROCEDURE
serrated side up. Position diaphragm (17), upper diaphragm washer
The 55L-60 Pressure Relief Control can be adjusted to provide a relief (18), with serration down, and belleville washer (14) with concave
setting at any point within the range found on the nameplate. side down.
Pressure adjustment is made by turning the adjustment screw (11) to 4. Install nut (13) and tighten securely.
vary the spring pressure on the diaphragm. Turning the adjustment screw 5. Continue reassembly as outlined in disassembly steps 1 through 3.
clockwise increases the pressure required to open the valve.
Counterclockwise decreases the pressure required to open the valve.
When pressure adjustments are complete the jam nut (10) should be
tightened and the protective cap (12) replaced. If there is a problem of
tampering, lock wire holes have been provided in cap and cover. Wire
the cap to cover and secure with lead seal.
DISASSEMBLY
The 55L-60 Pressure Relief Control does not need to be removed from
the line for disassembly. Make sure that pressure shut down is accompa- SYMPTOM PROBABLE CAUSE REMEDY
nied prior to disassembly. If the 55L-60 is removed from the line for dis-
assembly be sure to use a soft jawed vise to hold body during work. Fails to open. Controlling pressure Back off adjusting
Refer to Parts List Drawing for Item Numbers. too low. screw until valve
1. Remove cap (12), loosen jam nut (10) and turn adjusting opens.
screw counterclockwise until spring tension is relieved. Fails to open with Mechanical obstruc- Disassemble,
2. Remove the eight screws (15) holding the cover (9). Keep the cover spring compression tion, corrosion, scale locate,and remove
and eight screws together and place on a suitable work surface. removed. build-up on stem. obstruction, scale.
See NOTE under REASSEMBLY. Leakage from cover Diaphragm Damage Disassembly replace
3. Remove the cover (9) from body (1). The spring (8) and two spring vent hole when con- damaged
guides (7). trolling pressure is diaphragm.
4. Remove plug (22) from body (1). Using screwdriver, hold stem applied.
assembly (4) to remove nut (13).
5. Slide off the belleville washer (14), upper diaphragm washer (18), Loose diaphragm Tighten upper
diaphragm (17) and lower diaphragm washer (19). assembly. diaphragm washer.
6. Remove stem guide (21) from body (1). Remove stem assembly (4). Fails to close. No spring compres- Re-set pressure
Inspect, replace stem assembly and/or O-rings (5), (6) and (20) if sion. adjustment.
necessary. Use soft jawed pliers or vise to hold stem. The polished
surface of stem must not be scored or scratched.
Fails to close with Mechanical obstruc- Disassemble, locate
7. The seat (3) need not be removed unless it is damaged. If removal
spring compressed. tion. and remove
is necessary use proper size socket wrench and turn counterclock
wise. obstruction.

P.O. Box 1325 • Newport Beach, CA 92659-0325 • Phone: 949-722-4800 • Fax: 949-548-5441 • E-mail: claval@cla-val.com • Website cla-val.com
CLA-VAL © Copyright Cla-Val 2014 Printed in USA Specifications subject to change without notice. N-55L-60 11/2014
 PARTS LIST

55L-60
1/2" & 3/4" PRESSURE RELIEF CONTROL
12
Item Description Quantity

11 1 BODY 1
*2 O-‐RING 1
10 3 SEAT 1/2" & 3/4" 1
*4 STEM ASSEMBLY 1
15 *5 O-‐RING 1
*6 O-‐RING 1
7 Guide Spring 2
9 8 SPRING 1
9 COVER 1
7 10 Hexnut .375-‐16 UNC 1
11 Adjusting Screw 1
12 Cap 1
8 13 NUT, STEM 1
14 BELLEVILLE WASHER FLAT 1
7 15 FIL HD SCREW #10-‐32 UNF 8
16 NAMEPLATE 1
13 * 17 DIAPHRAGM 1
18 Washer Diaphragm Upper 1
19 DIAPHRAGM WASHER 1
14 * 20 O-‐RING 1
21 GUIDE STEM 1
18 22 3/4" NPT PIPE PLUG 1
23 1/8" NPT PIPE PLUG 3
17 24 DRIVE SCREW 2

* SUGGESTED REPAIR PARTS REPAIR KIT;

19 1/2" & 3/4"….…P/N 9170033G

21

20

5
PART
SIZE SPRING
NUMBER
6 1/2” 0-75 PSI 20881501D
79222-01E
4 1/2” 20-200 PSI 79222-05F
20881502C
1/2” 100-300 PSI 20885301G
79222-02C
3
3/4” 0-75 PSI 82809-01D
20881503B
2
3/4” 20-200 PSI 79229-02H
20881504A
24 1 3/4” 100-300 PSI 20885302F
86005-01E
25 23

16 22

55L-60 APPROX. INCREASE

FOR EACH
Spring Range CLOCKWISE TURN OF
PSI ADJUSTING SCREW
0 to 75 8.5 PSI
20 to 105 12.5 PSI
When ordering parts please specify: 20 to 200 28.0 PSI
1. All Nameplate Data 100 to 300 18.0 PSI
2. Item Part Number
3. Item Description

P.O. Box 1325 • Newport Beach, CA 92659-0325 • Phone: 949-722-4800 • Fax: 949-548-5441 • E-mail: claval@cla-val.com • Website cla-val.com
CLA-VAL © Copyright Cla-Val 2014 Printed in USA Specifications subject to change without notice. PL-55L-60 11/2014
A i r R e l e a s e Va l v e
(IF APPLICABLE)

SPP PUMPS, INC.

 Series 34
Air Release Valves
• Stainless Steel T316 Trim Standard
• Stainless Steel Floats Guaranteed
• Easily Serviced Without Removal From Pipeline
• Working Pressures to 800 PSI
• Engineered For Drip Tight Seal At Low Pressures
Cla-Val Series 34 Air Release Valves are designed to vent entrained
air that collects at high points in a pipeline. This valve continuously
eliminates air from a system by releasing small quantities of air before
large air pockets can occur. In many installations, continuing accumu-
lations of air in the pipeline (lacking air release valves); cause flow
capacity to slowly decrease; power consumption slowly increases; un-
noticeable at first, until flow drops dramatically, even stopping due to
air blocks in the piping. Another problem resulting from excessive air
accumulation is un-explained pipeline rupture. These ruptures are
passed off as the result of ground settling or defective pipe, Where as
in reality its large air pockets that greatly increase pressure surges
(normally occurring) when flow stops and starts causing the rupture.
During normal pipeline operation, air accumulation at the high point will
displace the liquid within the air valve and lower the water level in rela-
tion to the float. As level of the liquid lowers, where the float is no longer
buoyant, the float drops and opens the valve orifice seat and permitting
accumulated air to be exhausted to atmosphere. After air is released,
the liquid level in the air valve rises and closes the valve orifice seat.
This cycle automatically repeats as air accumulates inside the air
release valve, thereby preventing the formation of air pockets

Installation Specifications
Series 34 Air Release Valves are typically installed at high-
Sizes Materials
points in pipelines and at regular intervals, of approximate
1/2", 3/4", 1", 2", 3" NPT Body and Cover:
1/2 mile, along uniform grade line pipe.
Cast Iron ASTM-
Mount the unit in the vertical position on top of the pipeline Pressure Ratings (see note) A-126, Class B
with an isolation valve installed below each valve in the 150 psi
event servicing is required. A vault with adequate air venting 300 psi Float:
and drainage is recommended. 800 psi Stainless Steel T316

Note: Temperature Range Internal Parts:

Vacuum check valves can be supplied on the discharge of Water to 180°F Stainless Steel T316
all size air release valves to prevent air re-entering the system;
during negative pressure conditions Note: Specify when operating Seal:
pressure below 10 PSI Viton , Buna-N
TM ®

Purchase Specifications
The float shall be of all stainless steel construction and guar-
The air release valve shall be of the float operated, simple
anteed to withstand the designed system surge pressure with-
lever or compound lever design, and capable of
out failure. The body and the cover shall be cast iron and valve
automatically releasing accumulated air from a fluid system
internal parts shall be stainless steel and the Viton Buna-N® for
TM

while the system is pressurized and operating.

water tight shut-off. All T316 Stainless Steel shall be Austenitic.
An adjustable designed orifice button shall be used to seal
The air release valve shall be manufactured per
the valve discharge port with drip-tight shut-off. The orifice
ANSI/AWWA C512-04 Series 34 from
diameter must be sized for use within a given operating
Cla-Val in Newport Beach, CA, U.S.A.
pressure range to insure maximum air venting capacity.
 AIR RELEASE VALVE DATA
FOR WATER AND
Air Release Valve Sizing for Water and Wastewater Pipelines
1. Air release valve sizing requires determining the volume of air that must be released from pipeline high points during normal operation and the
diameter of the pipeline. Series 34 Air Release Valves are primarily used to continuously release pockets of air (as they develop) from high points.
Hence it is not critical to determine exact volume of air to be released.
2. If the volume of air to be released has been determined, then use the venting capacity chart to assist in sizing the air release valve. Use
maximum pipeline operating pressure (in psi) and flow (in SCFM) to determine orifice size. Select the largest inlet size for each valve to insure
adequate venting capacity.
INSTALLATION TIPS
1. The effectiveness of Series 34 Air Release Valve is dependent upon it being located at appropriate high points in a pipeline and
at uniform intervals of approximately 2500 feet on horizontal pipelines.
2. There are four variables that can cause an air pocket to form slightly downstream of the true high point in a piping system:
1. Severity of the slope adjacent to the high point or change of gradient
2. Velocity of the liquid
3. Texture of the inside surface of the pipe being used
4. Viscosity of the fluid
It is recommended where an air pocket can form slightly downstream of the high point, to install additional Series 34 Air Release
Valve at this point.
3. Cla-Val has available, upon request, a Slide Rule Air Valve Calculator. It will greatly reduce the amount of time to size
valves for pipeline service.
AIR RELEASE VALVE SIZING CHART FOR WATER PIPELINES
Pipeline Pumping PIPELINE OPERATING PRESSURE
Diameter Capacity 1 to 175 psi 1 to 300 psi
(Inches) (gpm) Model No. Inlet Size Orifice Size Model No. Inlet Size Orifice Size
34AR-116 1/2"
2" - 3" - 4" 200/800
gpm
34AR-116 3/4" 1/16" N/A
Diameter 34AR-116 1"
34AR-332 1/2" 34AR-116.3 1/2"
6" - 8" - 10" 800/2,2000 34AR-332 3/4" 3/32" 34AR-116.3 3/4" 1/16"
Diameter gpm
34AR-332 1" 34AR-116.3 1"
12" - 14"- 16" 2,000/5,000 34AR-018 3/4" 34AR-116.3 3/4"
1/8" 5/64"
Diameter gpm 34AR-018 1" 34AR-116.3 1"
18" - 20" 5,000/15,000 34AR-316C 1" 34AR-332.3C 1"
3/16" 3/32"
Diameter gpm 34AR-316C 2" 34AR-332.3C 2"
24" & Larger 15,000/50,000 34AR-38C 2" 3/8" 34AR-732.3C 2" 7/32"
Diameter gpm 34AR-38C 3" 3/8" 34AR-732.3C 3" 7/32"

AIR RELEASE VALVE SIZING GUIDE FOR WASTEWATER PIPELINES

Pipeline Pumping PIPELINE OPERATING PRESSURE
Diameter Capacity 1 to 175 psi 1 to 300 psi
(Inches) (gpm) Model No. Inlet Size Orifice Size Model No. Inlet Size Orifice Size
34WW25-316 2" 34WW25-332 2"
0 - 4,000 3/16"
4" - 12" gpm
34WW35-316 3" 34WW35-332 3" 3/16"
34WW45-316 4" 34WW45-332 4"
34WW21-716 2" 7/16" 34WW21-732 2"
14" & Larger 4,100 gpm
& Up 34WW31-716 3" 34WW31-732 3" 7/32"
34WW41-716 4" 34WW41-732 4"
Note: Use large as possible inlet size to allow best wastewater exchange to lesson clogged inlets.
Optional: Back Wash Kit recommended for maintenance.

When Ordering,
Please Specify:
1. Model Number
2. Inlet Size (NPT)
3. Inlet Pressure Rating
4. Orifice Size
 Series 34
AND SIZING GUIDE Series 34-WW
WASTEWATER
Simple Lever Type Air Release Valve for Water
(For Water) Model No. Orifice Size Inlet Size NPT Outlet Size NPT Max/ W.P.
34AR-116C 1/16" 1/2" - 3/4" -1" 3/8" 175 psi
34AR-332 3/32" 1/2" - 3/4" -1" 1/2" 175 psi
34AR-018 1/8" 3/4" -1" 1/2" 175 psi
34AR-316C 3/16" 1" 1/2" 175 psi
34AR-332.3C 3/32" 1" 1/2" 300 psi
34AR-316C 3/16" 2" 1/2" 175 psi
N
34AR-332-3C 3/32" 2" 1/2" 300 psi
o A
i 34AR-038C 3/8" 2" 1" 175 psi
A r
i 34AR-732.3C 7/32" 2" 1" 300 psi
r O
u
i t 34AR-038C 3/8" 2" 1" 175 psi
n
34AR-732.3C 7/32" 2" 1" 300 psi
Optional: Vacuum Check 34AR-732.2C 7/32" 2" 1" 500 psi
Valve prevents air 34AR-018C 1/8" 2" 1" 800 psi
For service up re-entering system.
to 300 psi 1/2” Model 50 VC 34AR-1.6C 1" 6" Flanged 1" 150 psi
1” Model 1 VC Air Release Valve for Wastewater
Compound Lever Type 34WW25-316 3/16" 2" - 3" -4" 1/2" 175 psi
(For Water) 34WW25-332 3/32" 2" - 3" -4" 1/2" 300 psi
34WW21-716 7/16" 2" - 3" -4" 1" 175 psi
34WW21-732 7/32" 2" - 3" -4" 1" 300 psi

ORIFICE SIZES WITH VENTING CAPACIT

FOR CLA-VAL AIR RELEASE VALVES
300

275
1/16 3/32 3/16 5/16 1/2
250
For service up 6" Air Release Valve 5/64 1/8 7/16
to 800 psi 225
5/32 1/4 3/8
Air Release Valve
200
For Wastewater (Pump Protector)
ACROSS ORIFICE (PSID)
PRESSURE DROP

175

150

125

100

75

50

25

0
1 10 100 1000
AIR FLOW RATE (SCFM)

E-34 (R-9/06)
 PARTS LIST

Series 34
Air Release Valve – Simple Lever Type

4 3/4"

OUTLET
21
PIPE PLUG
4 OPTIONAL

6
17
3
34 7
13

12 5 1/4"
10 5

11
1

TEST PRESSURE
1.5 TIMES
WORKING PRESSURE

INLET

Detail No. Part Name Material Detail No. Part Name Material
1 Body Cast Iron ASTM A126, Class B 10 Float Arm Stainless Steel T316, ASTM A276
2 Cover Cast Iron ASTM A126, Class B 11 Orifice Button Viton
TM

3 Lever Frame Stainless Steel T316, ASTM A276 12 Pivot Pin Stainless Steel T316, ASTM A276
4 Seat Stainless Steel T316, ASTM A276 13 Pin Retainer Stainless Steel PH 15-7 Mo
5 Float Stainless Steel T316, ASTM A276 17 Float Retainer Stainless Steel T316, ASTM A276
6 Gasket Garlock #3000 (Non-Asbestos) 21 Locator Stainless Steel T316, ASTM A276
7 Cover Bolt Alloy Steel SAE Grade 5 34 Lock Washer Stainless Steel T316, ASTM A276

Model No.
Valve 175 psi 175 psi Inlet Outlet Wt.
Size Max. W.P. Orifice Size Size Lbs.

1/2" 3450AR-116 1/16" 1/2" 1/2" NPT 6

3/4" 3475AR-116 1/16" 3/4" 1/2" NPT 6
1" 3410AR-116 1/16" 1" 1/2" NPT 6

CLA-VAL P.O. Box 1325 • Newport Beach, CA 92659-0325 • Phone: 949-722-4800 • Fax: 949-548-5441 • E-mail: claval@cla-val.com • Website cla-val.com
© Copyright Cla-Val 2005 Printed in USA Specifications subject to change without notice. PL-34AR116 (1/2” - 1”) (R-11/06)
 PARTS LIST

Series 34
Air Release Valve – Simple Lever Type
1"
58

21
OUTLET
4

7
2

3
34
13
1
12
6"
10

11 5

17

TEST PRESSURE
1.5 TIMES
WORKING PRESSURE

INLET

Detail No. Part Name Material Detail No. Part Name Material
1 Body Cast Iron ASTM A126, Class B 10 Float Arm Stainless Steel T316, ASTM A276
2 Cover Cast Iron ASTM A126, Class B 11 Orifice Button Viton
TM

3 Lever Frame Stainless Steel T316, ASTM A276 12 Pivot Pin Stainless Steel T316, ASTM A276
4 Seat Stainless Steel T316, ASTM A276 13 Pin Retainer Stainless Steel PH 15-7 Mo
5 Float Stainless Steel T316, ASTM A276 17 Float Retainer Stainless Steel T316, ASTM A276
6 Gasket Garlock #3000 (Non-Asbestos) 21 Locator Stainless Steel T316, ASTM A276
7 Cover Bolt Alloy Steel SAE Grade 5 34 Lock Washer Stainless Steel T316, ASTM A276

Model No. Model No.

Valve 175 psi 175 psi 300 psi 300 psi Inlet Outlet Wt.
Size Max. W.P. Orifice Max. W.P. Orifice Size Size Lbs
1/2" 3450AR-332 3/32" 3450AR-116.3 1/16" 1/2" 1/2" NPT 8
3/4" 3475AR-332 3/32" 3475AR-116.3 1/16" 3/4" 1/2" NPT 8
1" 3410AR-332 3/32" 3410AR-116.3 1/16" 1" 1/2" NPT 8

CLA-VAL P.O. Box 1325 • Newport Beach, CA 92659-0325 • Phone: 949-722-4800 • Fax: 949-548-5441 • E-mail: claval@cla-val.com • Website cla-val.com
© Copyright Cla-Val 2005 Printed in USA Specifications subject to change without notice. PL-34AR (332/116) (R-11/06)
M a i n R e l i e f Va l v e
(IF APPLICABLE)

SPP PUMPS, INC.

50B-4KG1/2050B-4KG1
 CVCL 1 2 3 4 DIST. CODE 050 SHEET 1 OF 2
CATALOG NO. DRAWING NO. REV.
50B-4KG1 (GLOBE)
T
10-18-12
80984
4-21-93
2-27-97

9-11-13
2050B-4KG1 (ANGLE)
TYPE OF VALVE AND MAIN FEATURES DESIGN
PRESSURE RELIEF VALVE
FACTORY MUTUAL APPROVED FOR VALVE SIZES 3", 4", 6" & 8" DRAW MGR 8-18-80
UL LISTED FOR VALVE SIZES 3", 4", 6" & 8" (GLOBE); 3", 4", 6" & 8" (ANGLE)
CHK'D CH 8-20-80
TLC

HWE 8-20-80
MS

APV'D
BF
JB

NOT FURNISHED BY CLA-VAL CO. OPTIONAL FEATURES

ADDED 8" GLOBE SIZE TO TITLE BLOCK (ECO 23755)

4
3

5
P
R
S
T 10-17-91

INLET
DATE

6
TLC
BY

* FORMERLY 100HKG 1
CAD REVISION RECORD - DO NOT REVISE MANUALLY

** UL LISTING
CRL SPRING RANGES;
20-200 PSI &100-300 PSI
** FM APPROVED
CRL & CRL60 SPRING RANGES; NOTE: FACTORY MUTUAL APPROVED
20-200 PSI &100-300 PSI TO FM STANDARD 1361 PER PROJECT NO'S.
0Y2A4.AH & 3045403
ITEM
NO. BASIC COMPONENTS QTY

1 *100-06 HYTROL (MAIN VALVE) 1

DESCRIPTION

2 **PRESSURE RELIEF CONTROL 1

3 X44A STRAINER & ORIFICE ASSEMBLY 1
4 81-01 CHECK VALVE 1
5 PRESSURE GAGE 1
6 X46A FLOW CLEAN STRAINER 1
A-M SEE REVISION FILE

OPTIONAL FEATURE SUFFIX ADDED TO CATALOG NUMBER

LTR

"THIS DRAWING IS THE PROPERTY OF CLA-VAL CO. AND SAME AND COPIES MADE THEREOF, IF ANY, SHALL BE RETURNED TO IT UPON DEMAND. DELIVERY AND DISCLOSURE HEREOF ARE SOLELY UPON CONDITION THAT THE SAME SHALL
NOT BE USED, COPIED OR REPRODUCED, NOR SHALL THE SUBJECT HEREOF BE DISCLOSED IN ANY MANNER TO ANYONE FOR ANY PURPOSE, EXCEPT AS HEREIN AUTHORIZED, WITHOUT PRIOR WRITTEN APPROVAL OF CLA-VAL CO. THIS

INFORMATION SHOWN HEREON IS PATENTED OR OTHERWISE PROTECTED, FULL TITLE AND COPYRIGHTS, IF ANY, IN AND TO THIS DRAWING AND/OR INFORMATION DELIVERED OR SUBMITTED ARE FULLY RESERVED CLA-VAL CO."
 CVCL 1 2 3 4 DIST. CODE 050 SHEET 2 OF 2
CATALOG NO. DRAWING NO. REV.
50B-4KG1 (GLOBE)
2050B-4KG1 (ANGLE) 80984 T
TYPE OF VALVE AND MAIN FEATURES DESIGN
PRESSURE RELIEF VALVE
FACTORY MUTUAL APPROVED FOR VALVE SIZES 3", 4", 6" & 8" DRAW JM 8-3-71
UL LISTED FOR VALVE SIZES 3", 4", 6" & 8" (GLOBE); 3", 4", 6" & 8" (ANGLE)
CHK'D JM 2-29-72
APV'D JM 2-29-72

OPERATING DATA
I. DESCRIPTION
THE CLA-VAL 50B-4KG1 AND 2050B-4KG1 PRESSURE RELIEF VALVES ARE DIAPHRAGM
ACTUATED PILOT CONTROLLED VALVES DESIGNED TO MAINTAIN A RELATIVELY CONSTANT
PRESSURE AT THE MAIN VALVE INLET. THE PRESSURE RELIEF SET POINT IS EASILY ADJUSTED
WITHIN THE RANGE SHOWN ON THE PRESSURE RELIEF CONTROL (2) NAMEPLATE.

II. PRESSURE RELIEF FEATURE

PRESSURE RELIEF CONTROL (2) IS A SPRING LOADED, NORMALLY CLOSED PILOT CONTROL THAT
RESPONDS TO SLIGHT PRESSURE CHANGES AT MAIN VALVE INLET. AN INCREASE IN INLET
PRESSURE TENDS TO OPEN CONTROL (2) AND A DECREASE IN INLET PRESSURE TENDS TO CLOSE
CONTROL (2). THIS CAUSES MAIN VALVE COVER PRESSURE TO VARY AND THE MAIN VALVE (1)
MODULATES (OPENS AND CLOSES) MAINTAINING A RELATIVELY CONSTANT PRESSURE AT THE
MAIN VALVE (1) INLET. A BRIEF EXPLANATION OF THE OPENING AND CLOSING CYCLE IS AS
FOLLOWS:

OPENING CYCLE:
(a) INLET PRESSURE IS DIRECTED THROUGH THE SENSING LINE TO THE ACTUATING
DIAPHRAGM OF CONTROL (2).
(b) WHEN FORCE CREATED BY INLET PRESSURE UNDER DIAPHRAGM OF CONTROL (2) EXCEEDS
THE FORCE OF THE SPRING IN CONTROL (2), CONTROL (2) OPENS.
(c) WHEN FLOW OUT OF MAIN VALVE COVER CHAMBER THROUGH CONTROL (2)
DATE

EXCEEDS FLOW INTO THE MAIN VALVE COVER CHAMBER THROUGH STRAINER &
ORIFICE (3), PRESSURE IN THE MAIN VALVE COVER CHAMBER IS REDUCED.
(d) WITH REDUCED PRESSURE IN THE MAIN VALVE COVER CHAMBER AND FULL INLET PRESSURE
UNDER THE MAIN VALVE DISC, THE MAIN VALVE (1) OPENS.
BY

CLOSING CYCLE:
CAD REVISION RECORD - DO NOT REVISE MANUALLY

(a) WHEN FORCE CREATED BY INLET PRESSURE UNDER DIAPHRAGM OF CONTROL (2) IS LESS
THAN THE FORCE OF THE SPRING IN CONTROL (2), CONTROL (2) CLOSES.
(b) AS A RESULT, THE MAIN VALVE (1) COVER CHAMBER IS SLOWLY PRESSURIZED THROUGH THE
STRAINER & ORIFICE (3) AND THE MAIN VALVE (1) CLOSES.
III. PRESSURE RELIEF CONTROL (2) ADJUSTMENT
(a) REMOVE PLASTIC CAP (TURN COUNTERCLOCKWISE).
(b) LOOSEN ADJUSTING SCREW JAM NUT (TURN COUNTERCLOCKWISE).
DESCRIPTION

(c) TURN ADJUSTING SCREW CLOCKWISE TO INCREASE PRESSURE RELIEF SET POINT
(OR COUNTERCLOCKWISE TO DECREASE SET POINT).
(d) RE-TIGHTEN JAM NUT.
(e) REPLACE PLASTIC CAP.

IV. CHECK VALVE FEATURE:

WHEN COVER PRESSURE IS HIGHER THAN INLET PRESSURE, CHECK VALVE (4) CLOSES. THIS
MAINTAINS THE HIGHER PRESSURE IN THE MAIN VALVE (1) COVER CHAMBER KEEPING THE
SEE SHEET 1

MAIN VALVE (1) CLOSED.

NOTES:
1. PERIODIC CLEANING OF STRAINER SCREEN IN ITEM (3) & (6) IS RECOMMENDED.
2. RELIEF VALVE (2) SHOULD BE TESTED AFTER INSTALLATION TO VERIFY SETTING.
LTR

"THIS DRAWING IS THE PROPERTY OF CLA-VAL CO. AND SAME AND COPIES MADE THEREOF, IF ANY, SHALL BE RETURNED TO IT UPON DEMAND. DELIVERY AND DISCLOSURE HEREOF ARE SOLELY UPON CONDITION THAT THE SAME SHALL
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 INSTALLATION / OPERATION / MAINTENANCE

MODEL 50B-4KG1/2050B-4KG1
Pressure Relief Valve
The Cla-Val Model 50B-4KG1 Globe /2050B-4KG1 Angle
Pressure Relief Valve is designed specifically to automatically
relieve excess pressure in fire protection pumping systems. Pilot
controlled, it maintains constant system pressure at the pump dis-
charge within very close limits as demands change.
The Fire Pump Pressure Relief Valve shall modulate to relieve
excess pressure in a fire protection system. It shall maintain con-
stant pressure in the system regardless of demand changes. It
shall be pilot controlled and back pressure shall not affect its set
point. It shall be actuated by line pressure through a pilot control
system and open fast in order to maintain steady system pressure
as system demand decreases. It shall close gradually to control
surges and shall re-seat drip-tight within 5% of its pressure setting.

INSTALLATION
1. Allow sufficient room around the valve assembly to make
adjustments and for servicing. MAINTENANCE
2. lt is recommended that gate or block valves be installed to 1. Cla-Val Valves and Controls require no lubrication or packing
facilitate isolating valve for preventative maintenance. When used and a minimum of maintenance. However, a periodic inspection
as a surge control or pressure relief valve where valve outlet dis- schedule should be established to determine how the fluid is
charge is to atmosphere, then a gate or block valve is needed at affecting the efficiency of the valve assembly. Minimum of once
valve inlet. When used as a back pressure sustaining control per year.
valve where valve outlet is connected to pressurized downstream 2. Repair and maintenance procedures of the Hytrol Main Valve
system, then gate or block valves are needed at valve inlet and and control components are included in a more detailed Tech
outlet. Manual. It can be downloaded from our web site (www.cla-val.com)
NOTE: BEFORE THE VALVE IS INSTALLED, PIPE LINES or obtained by contacting a Cla-Val Regional Sales Office.
SHOULD BE FLUSHED OF ALL FOREIGN MATTER. 3. When ordering parts always refer to the catalog number
3. Place valve in line with flow through valve in direction indicated and stock number on the valve nameplate.
on inlet plate or flow arrows. Check all fittings and hardware for
proper makeup and verify that no apparent damage is evident. SYMPTOM PROBABLE CAUSE REMEDY
4. Cla-Val Valves operate with maximum efficiency when mounted Reset pilot valve. If
in horizontal piping with the cover UP; however, other positions are Inlet pressure is below set- change is from tam-
ting of pilot valve. pering, seal cap with
acceptable. Due to size and weight of cover and internal components Main valve wire and lead seal.
on six inch and larger valves, installation with the cover up is won’t open
Pilot valve is stuck closed:
advisable. This makes periodic inspection of internal parts readily Mineral deposit or foreign Disassemble control
accessible. material between disc retain- and clean.
5. Caution must be taken in the installation of this valve to insure that er and stem guide.
galvanic and/or electrolytic action does not take place. The proper use
Water is com- Pilot valve diaphragm is rup- Disassemble and
of dielectric fittings and gaskets are required in all systems using dis- ing out of vent tured or diaphragm nut is replace diaphragm.
similar metals. hole in cover loose. Tighten nut.

OPERATION AND START-UP Disassemble main

1. Prior to pressurizing the valve assembly make sure the nec- Main valve is Mineral build-up on stem. valve, clean parts
stuck closed Stem damaged. and/or replace
essary gauges to measure pressure in the system, are installed damaged part.
as required by the system engineer.
CAUTION: During start-up and test a large volume of water Inlet pressure is above set-
Reset pilot valve
may be discharged downstream. Check that the downstream ting of pilot valve.
venting is adequate to prevent damage to personnel and equip- Disassemble and
Clogged orifice or strainer.
Main valve clean.
ment. All pilot adjustments should be made slowly in small
won’t close Pilot valve is stuck open:
increments. If the main valve closes too rapidly it may cause Disassemble and
Foreign material or mineral
surging in upstream piping. clean.
deposit under disc retainer or
2. Remove cap from CRL-60 then loosen adjusting screw coun- diaphragm assembly.
terclockwise. This will allow the valve to open at low pressure Foreign material or mineral
relieving the full flow of the fire pump. Bleed all air from the valve Disassemble and
deposit between seat and
Main valve clean.
at this time by carefully loosening the cover plug and tube fittings disc assembly.
stuck open
at the high points. Slowly turn the adjusting screw clockwise on Main valve diaphragm worn Disassemble and
out. replace.
the CRL-60 while watching the gauge between the valve and the
Pilot valve disc worn out.
pump until you reach the desired set-point. Tighten the jam nut on Main valve disc worn or dam-
Disassemble and
the CRL-60 and replace the cap. DO NOT USE THE GAUGE Valve leaks replace.
aged.
PROVIDED ON THE VALVE TO SET THE VALVE. IT IS ONLY continuously
Set point too close to inlet
Reset pilot valve.
THERE TO INDICATE PRESSURE IN THE COVER. pressure.
50B-4KG1 SCHEMATIC 2. CRL-60 PILOT VALVE
2 SCREW, ADJUSTING

CAP
NUT,
HEX JAM
GUIDE, SPRING CRL
BALL
SPRING, CRL
4 3
COVER, CRL

GUIDE, SPRING CRL

NUT, STEM, CRL
5
O-RING BELLEVILLE WASHER

SCREW, FIL HD 10-32

O-RING

STEM ASSEMBLY, CRL-60

WASHER, DIAPHRAGM

INLET OUTLET DIAPHRAGM

6 BODY, CRL-60 DIAPHRAGM

WASHER (LOWER)

GUIDE STEM, CRL-60

1
O-RING
BASIC COMPONENTS 3X 1/2-14 NPT OR
3X 3/4 -14 NPT PIPE PLUG
1 100-06 Hytrol (Main Valve)
2 CRL-60 Pressure Relief Pilot Valve
3 X44A Strainer & Orifice Strainer
4 81-01 Check Valve CRL-60 (100 - 300 psi) configuration shown
5 Pressure Gauge
6 X46A Flow Clean Strainer CRL-60 adjustment
Spring Color psi change per turn*
range (psi)
1. HYTROL MAIN VALVE 0 - 75 Red 8.5

PIPE PLUG HEX NUT 20 - 105 Silver 12.0

8" and Larger
COVER
FLAT WASHER 20 - 200 Green 28
PIPE PLUG
Cover Bolt 100 - 300 Yellow 18
6" and Smaller

FLAT WASHER
COVER BEARING
* Approximate. Use gauge at valve inlet to set
SPRING

STEM NUT
CRL-60 Pilot Valve X44A Strainer &
DIAPHRAGM WASHER
Orifice Strainer
*DIAPHRAGM 2. 3.

DISC RETAINER

*SPACER WASHERS
*DISC
81-01 Check Valve
DISC GUIDE

4.
STEM

Seat Screw
SEAT 8" and Larger
Pressure Gauge
X46A Flow Clean
SEAT O-RING
5. Strainer
STUD
8" and Larger 6.

BODY
PIPE PLUG
(Globe or Angle)

For a more detailed Tech Manual, go to www.cla-val.com or

*Repair Parts
contact a Cla-Val Regional Sales Office.

CLA-VAL P.O. Box 1325 • Newport Beach, CA 92659-0325 • Phone: 949-722-4800 • Fax: 949-548-5441 • E-mail: claval@cla-val.com • Website cla-val.com
© Copyright Cla-Val 2014 Printed in USA Specifications subject to change without notice. N-50B4KG1/2050B4KG1_CRL-60 (R-06/2014)
 INSTALLATION / OPERATION / MAINTENANCE

MODEL
100-01
Hytrol Valve
Description
The CIa-VaI Model 100-01 Hytrol Valve is a main valve for CIa-
VaI Automatic Control Valves. It is a hydraulically operated,
diaphragm-actuated, globe or angle pattern valve.

This valve consists of three major components; body, diaphragm

assembly, and cover. The diaphragm assembly is the only moving
part. The diaphragm assembly uses a diaphragm of nylon fabric
bonded with synthetic rubber. A synthetic rubber disc, contained
on three and one half sides by a disc retainer and disc guide, forms
a seal with the valve seat when pressure is applied above the
diaphragm. The diaphragm assembly forms a sealed chamber in the
upper portion of the valve, separating operating pressure from line
pressure.

Installation
1. Before valve is installed, pipe lines should be flushed of all chips, 6. Caution must be taken in the installation of this valve to insure
scale and foreign matter. that galvanic and/or electrolytic action does not take place. The
2. It is recommended that either gate or block valves be installed on proper use of dielectric fittings and gaskets are required in all
both ends of the 100-01 Hytrol Valve to facilitate isoIating the valve systems using dissimilar metals.
for preventive maintenance and repairs. 7. If a pilot control system is installed on the 100-01 Hytrol Valve,
3. Place the valve in the line with flow through the valve in the direc- use care to prevent damage. If it is necessary to remove fittings
tion indicated on the inlet nameplate. (See “Flow Direction” or components, be sure they are kept clean and replaced
Section). Note: Valve can be installed in the vertical or horizon- exactly as they were.
tal position. 8. After the valve is installed and the system is first pressurized,
4. Allow sufficient room around valve to make adjustments and for vent air from the cover chamber and pilot system tubing by
disassembly. loosening fittings at all high points.
5. CIa-VaI 100-01 Hytrol Valves operate with maximum efficiency
when mounted in horizontal piping with the cover UP, however,
other positions are acceptable. Due to size and weight of the cover
and internal components of 8 inch and larger valves, installation
with the cover UP is advisable. This makes internal parts readily
accessible for periodic inspection.

Principles of Operation Modulating

Restriction Control
Three Way Three Way
Pilot Control Pilot Control

Tight Closing Operation Full Open Operation Modulating Action

When pressure from the valve inlet (or When pressure in diaphragm chamber Valve modulates when diaphragm pres-
an equivalent independent operating is relieved to a zone of lower pressure sure is held at an intermediate point
pressure) is applied to the diaphragm (usually atmosphere) the line pressure between inlet and discharge pressure.
chamber the valve closes drip-tight. (5 psi Min.) at the valve inlet opens the With the use of a Cla-Val. "modulating
valve. control," which reacts to line pressure
changes, the pressure above the
diaphragm is varied, allowing the valve
to throttle and compensate for the
change.
Flow Direction Recommended Tools
The flow through the 100-01 Hytrol Valve can be in one of two 1. Three pressure gauges with ranges suitable to the instal-
directions. When flow is “up-and-over the seat,” it is in “normal” lation to be put at Hytrol inlet, outlet and cover connections.
flow and the valve will fail in the open position. When flow is “over-
the seat-and down,” it is in “reverse” flow and the valve will fail in 2. Cla-Val Model X101 Valve Position Indicator. This pro-
the closed position. There are no permanent flow arrow markings. vides visual indication of valve position without disassembly
The valve must be installed according to nameplate data. of valve.
BRIDGEWALL INDlCATOR
(cast into side of valve body)
3. Other items are: suitable hand tools such as screw-
Normal Flow Reverse Flow drivers, wrenches, etc. soft jawed (brass or aluminum) vise,
400 grit wet or dry sandpaper and water for cleaning.

Troubleshooting
The following troubleshooting information deals strictly with the All trouble shooting is possible without removing the valve from the
Model 100-01 Hytrol Valve. This assumes that all other compo- line or removing the cover. It is highly recommended to permanently
nents of the pilot control system have been checked out and are install a Model X101 Valve Position Indicator and three gauges in
in proper working condition. (See appropriate sections in unused Hytrol inlet, outlet and cover connections.
Technical Manual for complete valve).

SYMPTOM PROBABLE CAUSE REMEDY

Closed isolation valves in control system, or in main line. Open Isolation valves.
Fails to Close
Lack of cover chamber pressure. Check upstream pressure, pilot system, strainer, tubing, valves, or needle
valves for obstruction.

Diaphragm damaged. (See Diaphragm Check.) Replace diaphragm.

Diaphragm assembly inoperative. Clean and polish stem. Inspect and replace any damaged or badly eroded
Corrosion or excessive scale build up on valve stem. part.
(See Freedom of Movement Check)

Mechanical obstruction. Object lodged in valve. Remove obstruction.

(See Freedom of Movement Check)

Worn disc. (See Tight Sealing Check) Replace disc.

Badly scored seat. (See Tight Sealing Check) Replace seat.

Closed upstream and/or downstream isolation Open isolation valves.

Fails to Open valves in main line.

Insufficient line pressure. Check upstream pressure. (Minimum 5 psi flowing line pressure differential.)

Diaphragm assembly inoperative. Corrosion or excessive Clean and polish stem. Inspect and replace any
buildup on valve stem. (See Freedom of Movement Check) damaged or badly eroded part.

Diaphragm damaged. (For valves in "reverse flow" only) Replace diaphragm.

After checking out probable causes and remedies, the following three checks can be used to diagnose the nature of the
problem before maintenance is started. They must be done in the order shown.

Three Checks CAUTION:

The 100-01 Hytrol Valve has only one moving part (the diaphragm Care should be taken when doing the troubleshooting checks on
and disc assembly). So, there are only three major types of prob- the 100-01 Hytrol Valve. These checks do require the valve to
lems to be considered. open fully. This will either allow a high flow rate through the
valve, or the downstream pressure will quickly increase to the
First: Valve is stuck - that is, the diaphragm assembly is not free
to move through a full stroke either from open to close or vice inlet pressure. In some cases, this can be very harmful. Where
versa. this is the case, and there are no block valves in the system to
protect the downstream piping, it should be realized that the
Second: Valve is free to move and can’t close because of a worn valve cannot be serviced under pressure. Steps should be
out diaphragm. taken to remedy this situation before proceeding any further.
Third: Valve leaks even though it is free to move and the
diaphragm isn’t leaking.

2
 STEM TRAVEL
(Fully Open to Fully Closed)
Diaphragm Check (#1 ) Valve Size (inches) Travel (inches)
1. Shut off pressure to the Hytrol Valve by slowly closing upstream Inches MM Inches MM
and downstream isolation valves. SEE CAUTION. 1 1/4 32 0.4 10
1 1/2 40 0.4 10
2. Disconnect or close all pilot control lines to the valve cover and 2 50 0.6 15
leave only one fitting in highest point of cover open to atmosphere. 2 1/2 65 0.7 18
3.With the cover vented to atmosphere, slowly open upstream 3 80 0.8 20
isolation valve to allow some pressure into the Hytrol Valve body. 4 100 1.1 28
Observe the open cover tapping for signs of continuous flow. It is 6 150 1.7 43
not necessary to fully open isolating valve. Volume in cover cham- 8 200 2.3 58
ber capacity chart will be displaced as valve moves to open posi- 10 250 2.8 71
tion. Allow sufficient time for diaphragm assembly to shift posi- 12 300 3.4 86
tions. If there is no continuous flow, you can be quite certain the 14 350 4.0 100
diaphragm is sound and the diaphragm assembly is tight. If the 16 400 4.5 114
fluid appears to flow continuously this is a good reason to believe 20 500 5.6 143
the diaphragm is either damaged or it is loose on the stem. In 24 600 6.7 165
either case, this is sufficient cause to remove the valve cover and 30 800 7.5 190
investigate the leakage. (See “Maintenance” Section for procedure.) 36 900 8.5 216

10. If the stroke is different than that shown in stem travel chart
this is a good reason to believe something is mechanically restrict-
ing the stroke of the valve at one end of its travel. If the flow does
COVER CHAMBER CAPACITY not stop through the valve when in the indicated “closed” position,
(Liquid Volume displaced when valve opens)
the obstruction probably is between the disc and the seat. If the
Valve size (inches) Displacement flow does stop, then the obstruction is more likely in the cover. In
Gallons Liters either case, the cover must be removed, and the obstruction locat-
1 1/4 .020 .07 ed and removed. The stem should also be checked for scale build-
1 1/2 .020 .07 up. (See “Maintenance, section for procedure.)
2 .032 .12
11. For valves 6” and smaller, the Hytrol Valve’s freedom of move-
2 1/2 .043 .16
ment check can also be done after all pressure is removed from
3 .080 .30
4 .169 .64 the valve. SEE CAUTION. After closing inlet and outlet isolation
6 .531 2.0 valves and bleeding pressure from the valve, check that the cover
8 1.26 4.8 chamber and the body are temporarily vented to atmosphere.
10 2.51 9.5 Insert fabricated tool into threaded hole in top of valve stem, and
12 4.00 15.1 lift the diaphragm assembly manually. Note any roughness. The
14 6.50 24.6 diaphragm assembly should move smoothly throughout entire
16 9.57 36.2 valve stroke. The tool is fabricated from rod that is threaded on
20 12.00 45.4 one end to fit valve stem and has a “T” bar handle of some kind
24 29.00 109.8 on the other end for easy gripping. (See chart in Step 4 of
30 42.00 197.0 “Disassembly” Section.)
36 90.00 340.0
12. Place marks on this diaphragm assembly lifting tool when the
valve is closed and when manually positioned open. The distance
Freedom of Movement Check (#2) between the two marks should be approximately the stem travel
shown in stem travel chart. If the stroke is different than that
4. Determining the Hytrol Valve’s freedom of movement can be
shown, there is a good reason to believe something is mechani-
done by one of two methods.
cally restricting the stroke of the valve. The cover must be
5. For most valves it can be done after completing Diaphragm removed, and the obstruction located and removed. The stem
Check (Steps 1, 2, and 3). SEE CAUTION. At the end of step 3 should also be checked for scale build-up. (See “Maintenance”
the valve should be fully open. Section for procedure.)
6. If the valve has a Cla-Val X101 Position Indicator, observe the
indicator to see that the valve opens wide. Mark the point of max- Tight Sealing Check (#3)
imum opening. 13. Test for seat leakage after completing checks #1 & #2 (Steps
7. Re-connect enough of the control system to permit the appli- 1 to 12). SEE CAUTION. Close the isolation valve downstream of
cation of inlet pressure to the cover. Open pilot system cock so the Hytrol Valve. Apply inlet pressure to the cover of the valve, wait
pressure flows from the inlet into the cover. until it closes. Install a pressure gauge between the two closed
valves using one of the two ports in the outlet side of the Hytrol.
8. While pressure is building up in the cover, the valve should
close smoothly. There is a hesitation in every Hytrol Valve closure, Watch the pressure gauge. If the pressure begins to climb, then
which can be mistaken for a mechanical bind. The stem will either the downstream isolation valve is permitting pressure to
appear to stop moving very briefly before going to the closed posi- creep back, or the Hytrol is allowing pressure to go through it.
tion. This slight pause is caused by the diaphragm flexing at a Usually the pressure at the Hytrol inlet will be higher than on the
particular point in the valve’s travel and is not caused by a isolation valve discharge, so if the pressure goes up to the inlet
mechanical bind. pressure, you can be sure the Hytrol is leaking. Install another
9. When closed, a mark should be made on the X101 Valve posi- gauge downstream of isolating valve. If the pressure between the
tion indicator corresponding to the “closed” position. The distance valves only goes up to the pressure on the isolation valve
between the two marks should be approximately the stem travel discharge, the Hytrol Valve is holding tight, and it was just the iso-
shown in chart. lation valve leaking.

3
Maintenance VALVE STEM THREAD SIZE
Valve Size Thread Size (UNF Internal)
Preventative Maintenance 1 1/4"—2 1/2" 10—32
3"—4" 1/4—28
The Cla-Val Co. Model 100-01 Hytrol Valve requires no lubrication or 6"—14" 3/8—24
packing and a minimum of maintenance. However, a periodic inspec- 16" 1/2—20
tion schedule should be established to determine how the operating 20 3/4-16
conditions of the system are affecting the valve. The effect of these 24" 3/4-16
actions must be determined by inspection. 30” 3/4-16
36” 3/4-16
Disassembly
Inspection or maintenance can be accomplished without removing 5. The next item to remove is the stem nut. Examine the stem
the valve from the line. Repair kits with new diaphragm and disc are threads above the nut for signs of mineral deposits or corrosion.
recommended to be on hand before work begins. If the threads are not clean, use a wire brush to remove as much
WARNING: Maintenance personnel can be injured and equipment of the residue as possible. Attach a good fitting wrench to the nut
damaged if disassembly is attempted with pressure in the valve. SEE and give it a sharp “rap” rather than a steady pull. Usually
CAUTION. several blows are sufficient to loosen the nut for further removal.
On the smaller valves, the entire diaphragm assembly can be held
1. Close upstream and downstream isolation valves and independ- by the stem in a vise equipped with soft brass jaws before
ent operating pressure when used to shut off all pressure to the removing the stem nut.
valve.
The use of a pipe wrench or a vise without soft brass jaws scars
2. Loosen tube fittings in the pilot system to remove pressure from the fine finish on the stem. No amount of careful dressing can
valve body and cover chamber. After pressure has been released restore the stem to its original condition. Damage to the finish of
from the valve, use care to remove the controls and tubing. Note and the stem can cause the stem to bind in the bearings and the valve
sketch position of tubing and controls for re-assembly. The schemat- will not open or close.
ic in front of the Technical Manual can be used as a guide when
reassembling pilot system. 6. After the stem nut has been removed, the diaphragm assembly
breaks down into its component parts. Removal of the disc from
3. Remove cover nuts and remove cover. If the valve has been in the disc retainer can be a problem if the valve has been in serv-
service for any length of time, chances are the cover will have to be ice for a long time. Using two screwdrivers inserted along the out-
loosened by driving upward along the edge of the cover with a dull side edge of the disc usually will accomplish its removal. Care
cold chisel. should be taken to preserve the spacer washers in water, partic-
ularly if no new ones are available for re-assembly.

7. The only part left in the valve body is the seat which ordinarily
does not require removal. Careful cleaning and polishing of inside
and outside surfaces with 400 wet/dry sandpaper will usually
restore the seat’s sharp edge. If, however, it is badly worn and
replacement is necessary, it can be easily removed.

Seats in valve sizes 1 1/4” through 6” are threaded into the valve
body. They can be removed with accessory X109 Seat Removing
Tool available from the factory. On 8” and larger valves, the seat
On 6” and smaller valves block and tackle or a power hoist can be is held in place by flat head machine screws. Use a tight-fitting,
used to lift valve cover by inserting proper size eye bolt in place of long shank screwdriver to prevent damage to seat screws. If upon
the center cover plug. on 8” and larger valves there are 4 holes (5/8” removal of the screws the seat cannot be lifted out, it will be nec-
— 11 size) where jacking screws and/or eye bolts may be inserted essary to use a piece of angle or channel iron with a hole drilled
for lifting purposes. Pull cover straight up to keep from damaging in the center. Place it across the body so a long stud can be insert-
the integral seat bearing and stem. ed through the center hole in the seat and the hole in the angle
iron. By tightening the nut a uniform upward force is exerted on
COVER CENTER PLUG SIZE the seat for removal.
Valve Size Thread Size (NPT)
1 1/4"—1 1/2" 1/4" NOTE: Do not lift up on the end of the angle iron as this may force
2"—3" 1/2" the integral bearing out of alignment, causing the stem to bind.
4"—6" 3/4"
8"—10" 1" ANGLE OR CHANNEL IRON
12" 1 1/4" NUT
14" 1 1/2"
16" 2"
20” & 24" 2" LONG STUD OR BOLT
30” & 36” 2”
DO NOT
4. Remove the diaphragm and disc assembly from the valve body. LIFT

With smaller valves this can be accomplished by hand by pulling

straight up on the stem so as not to damage the seat bearing. NUT OR BOLT HEAD
On large valves, an eye bolt of proper size can be installed in the VALVE SEAT
stem and the diaphragm assembly can be then lifted with a block and
tackle or power hoist. Take care not to damage the stem or bearings. VALVE BODY
The valve won't work if these are damaged.
4
Lime Deposits Inspection of Parts

One of the easiest ways to remove lime deposits from the valve stem After the valve has been disassembled, each part should be
or other metal parts is to dip them in a 5-percent muriatic acid solution examined carefully for signs of wear, corrosion, or any other
just long enough for the deposit to dissolve. This will remove most of abnormal condition. Usually, it is a good idea to replace the rub-
the common types of deposits. CAUTlON: USE EXTREME CARE ber parts (diaphragm and disc) unless they are free of signs of
WHEN HANDLING ACID. Rinse parts in water before handling. If the wear. These are available in a repair kit. Any other parts which
deposit is not removed by acid, then a fine grit (400) wet or dry sand- appear doubtful should be replaced. WHEN ORDERlNG
paper can be used with water. PARTS, BE SURE TO GIVE COMPLETE NAMEPLATE DATA,
ITEM NUMBER AND DESCRlPTlON.

NOTE: If a new disc isn’t available, the existing disc can be

turned over, exposing the unused surface for contact with the
seat. The disc should be replaced as soon as practical.

Reassembly
3. Carefully install the diaphragm assembly by lowering the stem
1. Reassembly is the reverse of the disassembly procedure. If a new through the seat bearing. Take care not to damage the stem or
disc has been installed, it may require a different number of spacer bearing. Line up the diaphragm holes with the stud or bolt holes
washers to obtain the right amount of “grip” on the disc. When the on the body. on larger valves with studs, it may be necessary to
diaphragm assembly has been tightened to a point where the hold the diaphragm assembly up part way while putting the
diaphragm cannot be twisted, the disc should be compressed very diaphragm over the studs.
slightly by the disc guide. Excessive compression should be avoided.
Use just enough spacer washers to hold the disc firmly without notice- 4. Put spring in place and replace cover. Make sure diaphragm
able compression. is Iying smooth under the cover.

2. MAKE SURE THE STEM NUT IS VERY TIGHT. Attach a good fit- 5. Tighten cover nuts firmly using a cross-over pattern until all
ting wrench to the nut and give it a sharp “rap” rather than a steady nuts are tight.
pull. Usually several blows are sufficient to tighten the stem nut for final
tightening. Failure to do so could allow the diaphragm to pull loose and 6. Test Hytrol Valve before re-installing pilot valve system.
tear when subjected to pressure.

Test Procedure After Valve Assembly

There are a few simple tests which can be made in the field to make Due to the weight of the diaphragm assembly this procedure is
sure the Hytrol Valve has been assembled properly. Do these before not possible on valves 8” and larger. on these valves, the same
installing pilot system and returning valve to service. These are determination can be made by carefully introducing a low
similar to the three troubleshooting tests. pressure-less than five psi) into the valve body with the cover
vented. SEE CAUTION. Looking in cover center hole see the
1. Check the diaphragm assembly for freedom of movement after all diaphragm assembly lift easily without hesitation, and then
pressure is removed from the valve. SEE CAUTlON. Insert fabricated settle back easily when the pressure is removed.
tool into threaded hole in top of valve stem, and lift the diaphragm
assembly manually. Note any roughness, sticking or grabbing. The 2. To check the valve for drip-tight closure, a line should be
diaphragm assembly should move smoothly throughout entire valve connected from the inlet to the cover, and pressure applied at the
stroke. The tool is fabricated from rod that is threaded on one end to fit inlet of the valve. If properly assembled, the valve should hold
valve stem (See chart in Step 4 of “Disassembly” section.) and has a tight with as low as ten PSI at the inlet. See “Tight Sealing
“T” Bar handle of some kind on the other end for easy gripping. Check” section.)

Place marks on this diaphragm assembly lifting tool when the valve is 3. With the line connected from the inlet to the cover, apply full
closed and when manually positioned open. The distance between the working pressure to the inlet. Check all around the cover for any
two marks should be approximately the stem travel shown in stem trav- leaks. Re-tighten cover nuts if necessary to stop leaks past the
el chart. (See “Freedom of Movement Check” section.) If the stroke is diaphragm.
different than that shown, there is a good reason to believe something
is mechanically restricting the stroke of the valve. The cover must be 4. Remove pressure, then re-install the pilot system and tubing
removed, the obstruction located and removed. (See “Maintenance” exactly as it was prior to removal. Bleed air from all high
Section for procedure.) points.

5. Follow steps under “Start-Up and Adjustment” Section in

Technical Manual for returning complete valve back to service.

5
 1 6
17
25
5 7
2
24 8 9
10

INLET OUTLET
3

4
TOP VIEW 14 16
GLOBE PATTERN

PARTS LIST
Item Description
1. Pipe Plug
2. Drive Screws (for nameplate)
3. Hex Nut (8” and larger)
4. Stud (8” and larger) 26
5. Cover Bearing 27
6. Cover
9
7. Stem Nut
8. Diaphragm Washer
9. Diaphragm
10. Spacer Washers
11. Disc Guide 12
12. Disc Retainer
13. Disc
14. Stem 15
15. Seat
OUTLET
14
16. Body
17. Spring
22. Flat Head Screws (8” and larger)
23. Seat O-Ring
24. Hex head Bolt (1 1/4” thru 4”) 16
25. Nameplate
26. Upper Spring Washer (Epoxy coated valves only)
27. Lower Spring Washer (Epoxy coated valves only) INLET
28. Cover Bearing Housing (16” only) ANGLE PATTERN
29. Cover O-Ring (16’” only)
30. Hex Bolt (16” only)
31. Pipe Cap (16” only)
31
13

12 28
13 22
10
11
30
15 14
23

14

23

5 29

1 1/4" - 6" SEAT DETAIL 8" - 24" SEAT DETAIL 16" COVER DETAIL

6
 INSTALLATION / OPERATION / MAIN-

MODEL
100-
Hytrol Valve Service Data
Description 100-01 Hytrol Valve Description 100-20 600 Series Hytrol Valve
The CIa-VaI Model 100-01 Hytrol Valve is a main valve for The CIa-VaI Model 100-20 Hytrol Valve (600 Series main valve)
CIa-VaI Automatic Control Valves. It is a hydraulically operated, have only one part -the body- that is different from standard 100
diaphragm-actuated, globe or angle pattern valve. Series Cla-Val main valve parts. The remaining parts of the 600
series main valve are standard Cla-Val main valve parts. All serv-
This valve consists of three major components; body, diaphragm ice and maintenance information for the standard 100 Series
assembly, and cover. The diaphragm assembly is the only main valves also apply to the 600 series main valves.
moving part. The diaphragm assembly uses a diaphragm of nylon The most important thing to remember when ordering main
fabric bonded with synthetic rubber. A synthetic rubber disc, valve repair kits and replacement parts, except for the body, all
contained on three and one half sides by a disc retainer and disc other parts are going to be for a smaller size main valve. Cla-
guide, forms a seal with the valve seat when pressure is applied Val identifies main valve parts with the flange size of the stan-
above the diaphragm. The diaphragm assembly forms a sealed dard 100 Series main valve. Refer to the "Main Valve Sizes”
chamber in the upper portion of the valve, separating operating chart below.
pressure from line pressure.

HYTROL Service Data

Stem Cover Capacity Cover Cover Nut or Bolt Cover Cover Plug Cover Torque Stem Nut** Stem Nut Torque
HYTROL SIZE Valve Stem
Travel Displacement Center Lifting (ft. Lbs.)
100-01 100-20 Thread Thread Socket
Plug Socket Qty Holes Thread Socket ft. Lbs. in. Lbs. Thread
UNF-Internal (Bolt) (Long)
NPT UNC
inches mm inches mm inches mm Gallons Liters Lubed DRY
1" 25 0.3 8 1/4" 1/4" - 20 (B) 7/16" 8 4 48 3/8" - 24 4 6
1 1/4" 32 0.4 10 0.020 0.07 10 - 32 1/4" 5/16" - 18 (B) 1/2" 8 8 96 7/16" -20 6 10
1 1/2" 40 0.4 10 0.020 0.07 10 - 32 1/4" 5/16" - 18 (B) 1/2" 8 8 96 7/16" -20 6 10
2" 50 0.6 15 0.032 0.12 10 - 32 1/2" 3/8" - 16 (B) 9/16" 8 3/8" 7/16" 12 1/2" - 20 3/4" 10 15
2 1/2" 65 0.7 18 0.043 0.16 10 - 32 1/2" 7/16" - 14 (B) 5/8" 8 1/2" 9/16" 20 5/8" - 18 15/16" 21 30
3" 80 4" 100 0.8 20 0.080 0.30 1/4 - 28 1/2" 1/2" - 13 (B) 3/4" 8 1/2" 9/16" 30 5/8" - 18 15/16" 21 30
4" 100 6" 150 1.1 23 0.169 0.64 1/4 - 28 3/4" 3/4" - 10 (B) 1 1/8" 8 3/4" 5/8" 110 3/4" - 16 1 1/16" 40 60
6" 150 8" 200 1.7 43 0.531 2.00 3/8 - 24 3/4" 3/4" - 10 (B) 1 1/8" 12 3/4" 5/8" 110 7/8" - 14 1 5/16" 85 125
8" 200 10" 250 2.3 58 1.26 4.80 3/8 - 24 1" 3/4" - 10 1 1/4" 16 5/8" - 11 1" 13/16" 110 1 1/8" -12 1 13/16" 125 185
10" 250 12" 300 2.8 71 2.51 9.50 3/8 - 24 1" 7/8" - 9 1 7/16" 20 3/4" - 10 1" 13/16" 160 1 1/2" -12 1 7/8" 252 375
12" 300 16" 400 3.4 86 4.0 15.10 3/8 - 24 1 1/4" 1 1/8" - 7 1 13/16" 20 3/4" - 10 1" 13/16" 390 1 1/2" -12 2 1/2" 270 400
14" 350 3.9 99 6.5 24.60 3/8 - 24 1 1/2" 1 1/4" - 7 2" 20 1" - 8 1" 13/16" 545 1 1/2" -12 2 1/2" 280 420
16" 400 20", 24" 600 4.5 114 9.6 36.20 1/2 - 20 2" 1 1/4" - 7 2" 20 1" - 8 1" 13/16" 545 2" - 16 3" 500 750
20" 500 5.63 143 12 45.40 3/4 - 16 1 1/2" 1 3/8" - 6 2 1/8" 24 1" - 8 1" 13/16" 670 2 1/4" - 16 3 1/2" 930 N/R
24" 600 30" 800 6.75 165 29.0 108.80 3/4 - 16* 3/4" 1 1/2" - 12 2 3/8" 24 1 1/8"- 7 1" 13/16" 800 3" - 12 Special 1350 N/R
* Adapter Grade 5 Bolts
** Must Use ONLY
p/n 2594101E "Heavy" Grade Nuts
Cla-Val Supplied part
inside 1/4" - 28" Tighten cover nuts in a "star" cross-over pattern
 BOLT/NUT TORQUING PROCEDURES ON VALVE COVERS 100-01 Hytrol Main Valve Assembly
PIPE PLUG
COVER HEX NUT
1 3 1 6 8" and Larger
1 3
PIPE PLUG
8 3
Cover Bolt
6" and Smaller
4 5
6 6
8 COVER BEARING
BOLTS BOLTS BOLTS SPRING
4 7
STEM NUT
4 2
4 2 5 2 KO Anti-Cavitation DIAPHRAGM WASHER
Trim Option

1 5 1 9 1 15 KO *DIAPHRAGM
16 5 17 9 DISC
12 7 20 7 GUIDE
8 13
5 13
0 3 12 3 DISC RETAINER
12 3 KO
12 16 20 SEAT
BOLTS 4 BOLTS 11 4 BOLTS 11 *SPACER WASHERS
4 9
14 6
14 7
8 11 8 19 *DISC
6 15
6 2 10 2 10 16 2 18
DISC GUIDE
Follow this procedure when reassembling MAIN Valve: STEM

Seat Screw
1. Tightens bolts/nuts in a “Star” or “Cross-Over” pattern following the 8" and Larger

numbers shown above to insure that cover seats evenly on the diaphragm
SEAT
material and body.
SEAT O-RING
2. Torque the bolt/nuts in three stages with a "Star" or "Cross-Over" pattern STUD
for each stage: 8" and Larger

A. To approximately 10% of final torque.

BODY
B. To approximately 75% of final torque. PIPE PLUG
(Globe or Angle)
C. To final required torque.

3. Valves that are to be tested to 375 PSI or higher should be retorqued *Repair Parts
after 24 hours.
P.O. Box 1325 • Newport Beach, CA 92659-0325 • Phone: 949-722-4800 • Fax: 949-548-5441 • E-mail: claval@cla-val.com • Website cla-val.com
CLA-VAL © Copyright Cla-Val 2014 Printed in USA Specifications subject to change without notice. N-100-01 (R-08/2014
 MODEL
50B-4KG1 Globe
2050B-4KG1 Angle
Listed/Approved Fire Protection Pressure Relief Valve
LA
BLLED BY
• U.L. Listed / U.L.C. Listed
ULC

U N D E R W RIT

CANADA
• Factory Mutual Approved

OF
R

S
S E
LAB RI
O R AT O

• Fast Opening to Maintain Steady Line Pressure

• Accommodates Wide Range of Flow Rates
• Closes Gradually for Surge-Free Operation
• Adjustable Pressure Settings, Not Affected by
Pressure At Valve Discharge

The Cla-Val Model 50B-4KG1 Globe / 2050B-4KG1 Angle

Pressure Relief Valve is designed specifically to automati-
cally relieve excess pressure in fire protection pumping sys-
tems. Pilot controlled, it maintains constant system pres-
sure at the pump discharge within very close limits as
demands change. The 50B-4KG1 and 2050B-4KG1 can be
supplied with optional internal and external epoxy coating of
the main valve wetted surfaces.

U.L. Listed...............Sizes 3" thru 8"

F.M. Approved.........Sizes 3" thru 8"
2050B-4KG1 (Angle) U.L.C. Listed............Sizes 2” thru 10”

Typical Application KOModel 2050B-4KG1 Operation Sequence

Pressure Relief Valve
(Angle Pattern) At pump start, Cla-Val Relief Valve modulates to relieve
excess pump capacity, maintaining positive system pres-
sure at the pump discharge.

When fire demand slows or ceases, Cla-Val Model

50B-4KG1 opens, diverting entire pump output to dis-
charge, allowing fire pump to be stopped without causing
Fire Pump surging in the lines.

(Please note that if the Model 50B-4KG1 is to be used on

a continuous duty basis to maintain fire-system pressure,
suitable back pressure must be provided on the valve to
prevent cavitation damage. Consult the factory for details.)
Check Valve
Optional UL Listed Materials for Seawater and Severe
Service Applications:
• Nickel Aluminum Bronze (NAB) - ASTM B148 Alloy C95800
• Monel - QQ-N-288 Comp B - ASTM A494 Grade M30H
• Cast Steel - ASTM A216 Grade WCB
• 316 Stainless Steel - ASTM A743 Grades CF3M and CFM8
To Fire • Super Austenitic Stainless Steel - ASTM A351 Grade
Protection System CK3MCuN (SMO 254)
• Super Duplex Stainless Steel - ASTM A890 Grade 5A
"Fluid Control at It's Best" (CE3MN)
Specifications Dimensions
B
Sizes Globe: 2" - 10” flanged = U.L., F.M. and
Angle: 2" - 10" flanged ULC sizes
End Details 150 and 300 ANSI B16.42
Pressure Ratings class - 175 psi Max. G
= ULC sizes only
class - 300 psi Max
Water, to 180°F Max.
Model 50B-4KG1 Globe Model 2050B-4KG1 Angle
Standard Materials Main Valve Body & Cover
A H E
Ductile Iron ASTM A536 Grade 65-45-12
Standard Main Valve Trim:
Bronze Seat, Teflon Coated
Stainless Steel Stem, Dura-Kleen Stem
C
Standard Pilot Control System: C
Cast Bronze with
Stainless Steel trim
Available in the following relief
pressure ranges: D F
Adjustment Range 20-200 psi (150 Class)
100-300 psi (300 Class) We recommend providing adequate space around valve for maintenance work.
Protective epoxy resin coating
of wetted surfaces of main Valve Size (inches) 2” 2-1/2” 3” 4” 6” 8” 10”
Optional valve cast iron components Threaded Ends 9.38 11.00 12.50 --- --- --- ---
(UL listed HNFX EX2855) A 150 Flanged 9.38 11.00 12.00 15.00 20.00 25.38 29.75
300 Flanged 10.00 11.62 13.25 15.62 21.00 26.38 31.12
300 X 150 12.88 15.31 20.56 25.88 30.44
Purchase Specifications B 3.31 4.00 4.56 5.75 7.88 10.00 11.81
The Fire Pump Pressure Relief Valve shall modulate to relieve excess C 12.00 12.25 12.50 13.00 14.31 16.31 18.00
pressure in a fire protection system. It shall maintain constant pressure D 1.50 1.69 2.66 3.19 4.31 5.31 9.25
in the system regardless of demand changes. It shall be pilot controlled Threaded Ends 4.75 5.50 6.25 --- --- --- ---
and back pressure shall not affect its set point. It shall be actuated by
E 150 Flanged 4.75 5.50 6.00 7.50 10.00 12.75 14.88
line pressure through a pilot control system and open fast in order to
300 Flanged 5.00 5.88 6.38 7.88 10.50 13.25 15.56
maintain steady system pressure as system demand decreases. It shall
close gradually to control surges and shall re-seat drip-tight within 5% of Threaded Ends 3.25 4.00 4.50 --- --- --- ---
its pressure setting. The main valve shall be of the hydraulically-operat- F 150 Flanged 3.25 4.00 4.00 5.00 6.00 8.00 8.62
ed, pilot-controlled, diaphragm-type, globe or angle valve. It shall have 300 Flanged 3.50 4.31 4.38 5.31 6.50 8.50 9.31
a single, removable, teflon-coated seat, a grooved stem guided at both G&H 6.00 6.69 7.75 7.88 8.50 9.75 13.25
ends, and a resilient disc with a rectangular cross section, being con-
tained on 3 1/2 sides. No external packing glands shall be permitted and Valve Size (mm) 50 65 80 100 150 200 250
the diaphragm shall not be used as a seating surface. The pilot control Threaded Ends 238 279 318 --- --- --- ---
shall be a direct-acting, adjustable, spring-loaded, diaphragm-type valve
A 150 Flanged 234 279 305 381 508 645 756
designed for modulating service to permit flow when controlling pressure
300 Flanged 254 295 337 397 533 670 790
exceeds spring setting. This valve shall be UL Listed and Factory Mutual
approved. It shall be the Model 50B-4KG1 (globe) or Model 2050B- 300 X 150 --- --- 327 389 522 657 773
4KG1 (angle) Pressure Relief Valve as manufactured by Cla-Val Newport B 84 102 116 146 200 254 300
Beach, California. C 305 311 1318 330 363 414 457
*Special Note: D 38 43 65 81 109 135 235
The Model 50B-4KG1 Pressure Relief Valve is available with 300# ANSI Threaded Ends 121 140 159 --- --- --- ---
inlet flange and 150# ANSI outlet flange. This valve is used on higher
E 150 Flanged 121 140 152 191 254 324 378
pressure systems where 300# flange connections are required, and
300 Flanged 127 149 162 200 267 337 395
allows for adapting of a discharge cone (generally supplied with 150#
flange) to accommodate "atmospheric break" at relief valve discharge. Threaded Ends 83 102 114 --- --- --- ---
This relief valve, with 300# / 150# flanges is available on special order, F 150 Flanged 83 102 102 127 152 203 219
and is UNDERWRITERS LABORATORIES LISTED AND FACTORY 300 Flanged 89 109 111 135 165 216 236
MUTUAL APPROVED. G&H 152 170 197 200 216 248 337

Specifications: Seawater Service Option Valve Capacity

Sizes Globe: 2" - 8" flanged
Angle: 2" - 8" flanged Valve Sizes in Inches: 2" 2 1/2" 3" 4" 6" 8" 10"
Consult factory for flange ratings. NFPA 20 Maximum
See page 1 for seawater service materials options. Recommended GPM 208 300 500 1000 2500 5000 11000

CLA-VAL Represented By:

PO Box 1325 Newport Beach CA 92659-0325 Phone: 949-722-4800
Fax: 949-548-5441 Web Site: cla-val.com E-mail: claval@cla-val.com
CLA-VAL CANADA CLA-VAL EUROPE CLA-VAL UK
4687 Christie Drive Chemin des Mésanges 1 Dainton House, Goods Station Road
Beamsville, Ontario CH-1032 Romanel/ GB - Tunbridge Wells
Canada L0R 1B4 Lausanne, Switzerland Kent TN1 2 DH England
Phone: 905-563-4963 Phone: 41-21-643-15-55 Phone: 44-1892-514-400
Fax: 905-563-4040 Fax: 41-21-643-15-50 Fax: 44-1892-543-423
E-Mail: sales@cla-val.ca E-Mail: cla-val@cla-val.ch E-Mail: info@cla-val.co.uk
© Copyright CLA-VAL 2014 Printed in USA Specifications subject to change without notice.
E-50B-4KG1/2050B-4KGL1 (R-04/2014)
 INSTALLATION / OPERATION / MAINTENANCE

MODEL
CRL
Pressure Relief Control
DESCRIPTION INSPECTION
The CRL Pressure Relief Control is a direct acting, spring loaded, Inspect all parts for damage, or evidence of cross threading. Check
diaphragm type relief valve. It may be used as a self-contained valve or diaphragm and disc retainer assembly for tears, abrasions or other dam-
as a pilot control for a Cla-Val Main valve. It opens and closes within age. Check all metal parts for damage, corrosion or excessive wear.
very close pressure limits. REPAIR AND REPLACEMENT
INSTALLATION Minor nicks and scratches may be polished out using 400 grit wet or dry
sandpaper fine emery or crocus cloth. Replace all O-rings and any dam-
The CRL Pressure Relief Control may be installed in any position. The
aged parts.
control body (7) has one inlet and one outlet port with a side pipe plug
When ordering replacement parts, be sure to specify parts list item num-
(24) at each port. These plugs are used for control connections or gauge
ber and all nameplate data.
applications. The inlet in the power unit body (6) is the sensing line port.
A flow arrow is marked on the body casting. REASSEMBLY
OPERATION In general, reassembly is the reverse of disassembly. However, the fol-
lowing steps should be observed:
The CRL Pressure Relief Control is normally held closed by the force of
the compression spring above the diaphragm; control pressure is applied 1. Lubricate the O-Ring (18) with a small amount of a good grade of
under the diaphragm. waterproof grease, (Dow Corning 44 medium grade or equal).
Use grease sparingly and install O-ring in powerunit body (6).
When the controlling pressure exceeds the spring setting, the disc is lifted
off its seat, permitting flow through the control. 2. Install stem (19) in powerunit body (6). Use a rotating motion with
minimum pressure to let stem pass through O-ring.
When controlling pressure drops below spring setting, the spring returns
the control to its normally closed position. Do Not Cut O-Ring.

ADJUSTMENT PROCEDURE 3. Install O-ring (5) at top of stem (19). Place lower diaphragm
washer (17) on the stem with the serrated side up. Position
The CRL Pressure Relief Control can be adjusted to provide a relief set-
diaphragm (16), upper diaphragm washer (15), with serration down,
ting at any point within the range found on the nameplate.
and belleville washer (14) with concave side down.
Pressure adjustment is made by turning the adjustment screw (9) to vary
4. Position powerunit body (6) as shown on parts list drawing (top view).
the spring pressure on the diaphragm. Turning the adjustment screw
clockwise increases the pressure required to open the valve. 5. Continue reassembly as outlined in disassembly steps 1 through 3.
Counterclockwise decreases the pressure required to open the valve.
When pressure adjustments are complete the jam nut (10) should be
tightened and the protective cap (1) replaced. If there is a problem of
tampering, lock wire holes have been provided in cap and cover. Wire Note: Item (4) Screw will have a quantity of 8 for the 0-75 and 20-200psi
the cap to cover and secure with lead seal. design and a quantity of 4 for the 100-300psi design. Item (25) Screw is
DISASSEMBLY used on the 100-300psi design only. Install item (25), before item (4) for
The CRL Pressure Relief Control does not need to be removed from the preload of item (12) spring.
line for disassembly. Make sure that pressure shut down is accompanied
prior to disassembly. If the CRL is removed from the line for disassembly
be sure to use a soft jawed vise to hold body during work.
Refer to Parts List Drawing for Item Numbers.
1. Remove cap (1), loosen jam nut (10) and turn adjusting SYMPTOM PROBABLE CAUSE REMEDY
screw counterclockwise until spring tension is relieved.
2. Remove the eight screws (4) holding the cover (3) and Fails to open. Controlling pressure Back off adjusting
powerunit body (6). Hold the cover and powerunit together too low. screw until valve
and place on a suitable work surface. opens.
See NOTE under REASSEMBLY. Fails to open with Mechanical obstruc- Disassemble,
3. Remove the cover (3) from powerunit body (6). The spring spring compression tion, corrosion, scale locate,and remove
(12) and two spring guides (11). removed. build-up on stem. obstruction, scale.
4. Remove nut (13) from stem (19) and slide off the belleville washer Leakage from cover Diaphragm Damage Disassembly replace
(14), the upper diaphragm washer (15) and the diaphragm (16). vent hole when con- damaged
5. Pull the stem (19) with the disc retainer assembly (21) through the trolling pressure is diaphragm.
bottom of powerunit. The lower diaphragm washer (17) will slide off applied.
of stem top.
6. Remove jam nut (23) and disc retainer assembly (21) from stem. Loose diaphragm Tighten upper
Use soft jawed pliers or vise to hold stem. The polished surface of assembly. diaphragm washer.
stem must not be scored or scratched. Fails to close. No spring compres- Re-set pressure
7. The seat (22) need not be removed unless it is damaged. If removal sion. adjustment.
is necessary use proper size socket wrench and turn counterclock
wise. Fails to close with Mechanical obstruc- Disassemble, locate
Note: Some models have an integral seat in the body (7). spring compressed. tion. and remove
obstruction.

CLA-VAL P.O. Box 1325 • Newport Beach, CA 92659-0325 • Phone: 949-722-4800 • Fax: 949-548-5441 • E-mail: claval@cla-val.com • Website cla-val.com
©
Copyright Cla-Val 2011 Printed in USA Specifications subject to change without notice. N-CRL (R-3/2011)
 PARTS LIST

CRL
1/2" & 3/4" PRESSURE RELIEF CONTROL
(Bronze Body with 303SS Trim)
Body with
TRUE LOCATION OF
SENSING integral Seat PART
CONNECTION SIZE SPRING
(TYP.)
45º NUMBER
3.12 1/2” 0-75 PSI 7922201E
DIA.

1/2” 20-105 PSI 7922205F

4 ADJUSTING SCREW 1/2” 20-200 PSI 7922202C
(1/2" 20UNF THREAD)
24
1/2” 100-300 PSI 8280901D
1 1 3/4” 0-75 PSI 7922901K
9
3/4” 20-105 PSI 7922903F
10
Ajusting Screw
9
(3/8" - 16UNF THREAD)
10
10.44
MAX.
3 3/4” 20-200 PSI 7922902H
3
11
12
3/4” 100-300 PSI 8600501E
11
7.44

13 11
12 MAX For 250-600 PSI Contact Factory
14
15 18
APPROX. INCREASE
1/8 - 27 NPT 4 CRL FOR EACH
SENSING
CONNECTION 16 Range PSI CLOCKWISE TURN OF
(TYP.) ADJUSTING SCREW
17 2
18
5 0 to 75 8.5 PSI
19
2 20 to 105 12.5 PSI
21 7
6
INLET OUTLET 20 to 200 28.0 PSI
20
.71 100 to 300 18.0 PSI
.71

8 22 23 7 0 TO 75 AND When ordering parts please specify:

20 TO 200 PSI 1. All Nameplate Data
DESIGN 100 To 300 psi Design
2. Item Part Number
3. Item Description

Item Description Material Part Number Part Number Part Number Part Number
0-75 20-105 20-200 100-300
1 Cap Plastic 67628J 67628J 67628J 1257601D
2 Nameplate Brass -- -- -- --
3 Cover Bronze C2544K C2544K C2544K 44587E
4* Screw Fil. Hd. 10-32 x 1.88 (Qty 8) 303 SS 6757867E 6757867E 6757867E 6757867E
5* O-Ring Rubber 00902H 00902H 00902H 00902H
6 Body, Powerunit Bronze 7920504D 7920504D 7920504D 7920504D
7 1/2” Body Bronze C7928K C7928K C7928K C7928K
3/4” Body Bronze C9083B C9083B C9083B C9083B
8* O-Ring, Seat Rubber 00718H 00718H 00718H 00718H
9 Screw, Adjusting Brass 7188201D 7188201D 7188201D 82811B
10 Nut Hex (Locking) 303 SS 6780106J 6780106J 6780106J 6780606H
11 Guide, Spring 303 SS 71881H 71881H 71881H 1630301J
12 Spring CHR/VAN 71884B 20632101E 71885J 1630201A
13 Nut, Stem Upper Bronze 73034B 73034B 73034B 73034B
14 Washer, Belleville Steel 7055007E 7055007E 7055007E 7055007E
15 Washer, Diaphragm (upper) 303 SS 71891G 71891G 71891G 71891G
16* Diaphragm Rubber C1505B C1505B C1505B C1505B
17 Washer, Diaphragm (lower) 303 SS 45871B 45871B 45871B 45871B
18* O-Ring, Stem Rubber 00746J 00746J 00746J 00746J
19 Stem 303 SS 8982401F 8982401F 8982401F 8982401F
20* O-Ring, Body Rubber 00767E 00767E 00767E 00767E
21* Retainer Assembly, Disc 303 SS C9158B C9158B C9158B C9158B
22 Seat 303Rub 62187A 62187A 62187A 62187A
23 Nut, Hex, Stem, Lower Bronze 6779806G 6779806G 6779806G 6779806G
24 Pipe Plug Bronze 6784701C 6784701C 6784701C 6784701C

FACTORY SET POINT 50 PSI 60 PSI 60 PSI 100 PSI

REPAIR KIT* 9170007A 9170007A 9170007A 9170007A

CLA-VAL P.O. Box 1325 • Newport Beach, CA 92659-0325 • Phone: 949-722-4800 • Fax: 949-548-5441 • E-mail: claval@cla-val.com • Website cla-val.com
©
Copyright Cla-Val 2011 Printed in USA Specifications subject to change without notice. PL-CRL (R-8/2011)
 INSTALLATION / OPERATION / MAINTENANCE

MODEL
X46
Flow Clean Strainer
• Self Scrubbing Cleaning Action
• Straight Type or Angle Type

X46A Straight The Cla-Val Model X46 Strainer is designed to prevent passage of
foreign particles larger than .015". It is especially effective against
such contaminant as algae, mud, scale, wood pulp, moss, and root
fibers. There is a model for every Cla-Val. valve.

X46B Angle The X46 Flow Clean strainer operates on a velocity principle utilizing
the circular "air foil" section to make it self cleaning. Impingement of
particles is on the "leading edge" only. The low pressure area on the
downstream side of the screen prevents foreign particles from clog-
ging the screen. There is also a scouring action, due to eddy cur-
rents, which keeps most of the screen area clean.

Dimensions (In Inches)

Male X46A Straight Type A (In Inches)
SAE Width Across Flats Pipe
C Male B A (NPT) B (NPT) D E F G I
B Pipe
H 1/8 1/8 1-3/4 3/4 1/2 1/2 1/4
G I 1/4 1/4 2-1/4 1 3/4 3/4 3/8
I
A 3/8 3/8 2-1/2 1 7/8 7/8 1/2
E
X46B E Female F 3/8 1/2 2-1/2 1-1/4 1/2 7/8 3/4
D Pipe D
X46A 1/2 1/2 3 1-1/4 1 1-1/8 3/4
X46 Angle Type B (In Inches)
3/8 3/4 3-3/8 2 1/2 1 7/8
B(NPT) C(SAE) D E H I
3/4 3/4 4 2 1 1-1/2 7/8
1/8 1/4 1-3/8 5/8 7/8 1/4 When Ordering, 3/8 1 4-1/4 2-3/4 1/2 1-3/8 7/8
1/4 1/4 1-3/4 3/4 1 3/8 Please Specify: 1 1 4-1/2 2-3/4 1-1/4 1-3/4 7/8
3/8 1/4 2 7/8 1 1/2 • Catalog Number X46
1/2 1 4-1/4 2-3/4 1/2 1-3/8 7/8
3/8 3/8 1-7/8 7/8 1 1/2 • Straight Type or Angle Type
• Size Inserted Into and Size Connection
1/2 3/8 2-3/8 1 1-1/4 5/8
• Materials

INSTALLATION CLEANING
The strainer is designed for use in conjunction with a Cla-Val After inspection, cleaning of the X46 can begin. Water service usually will produce
Main Valve, but can be installed in any piping system where mineral or lime deposits on metal parts in contact with water. These deposits can
there is a moving fluid stream to keep it clean. When it is used be cleaned by dipping X46 in a 5-percent muriatic acid solution just long enough
with the Cla-Val Valve, it is threaded into the upstream body port for deposit to dissolve. This will remove most of the common types of deposits.
provided for it on the side of the valve. It projects through the Caution: use extreme care when handling acid. If the deposit is not removed
side of the Main Valve into the flow stream. All liquid shunted to by acid, then a fine grit (400) wet or dry sandpaper can be used with water.
the pilot control system and to the cover chamber of the Main Rinse parts in water before handling. An appropriate solvent can clean parts used
Valve passes through the X46 Flow Clean Strainer. in fueling service. Dry with compressed air or a clean, lint-free cloth.
Protect from damage and dust until reassembled.
INSPECTION REPLACEMENT
Inspect internal and external threads for damage or evidence If there is any sign of damage, or if there is the slightest doubt that the Model X46
of cross-threading. Check inner and outer screens for clogging, Flow Clean Strainer may not afford completely satisfactory operation, replace it. Use
embedded foreign particles, breaks, cracks, corrosion, fatigue, Inspection steps as a guide. Neither inner screen, outer screen, nor housing is fur-
and other signs of damage. nished as a replacement part. Replace Model X46 Flow Clean Strainer as a com-
plete unit.
DISASSEMBLY
When ordering replacement Flow-Clean Strainers, it is important to determine pipe
Do not attempt to remove the screens from the strainer housing.
size of the tapped hole into which the strainer will be inserted (refer to column A or
F), and the size of the external connection (refer to column B or G).

CLA-VAL P.O. Box 1325 • Newport Beach, CA 92659-0325 • Phone: 949-722-4800 • Fax: 949-548-5441 • E-mail: claval@cla-val.com • Website cla-val.com
©
Copyright Cla-Val 2011 Printed in USA Specifications subject to change without notice. N-X46 (R-3/2011)
 PARTS LIST

X44A
Strainer and Orifice Assembly
BRONZE BODY — DELRIN ORIFICE

3/8" x 3/8"

X44A ORIFICE PLUG

STOCK NO. ORIFICE DIA. PART # (ITEM 5)

71310-01F .031 94132-01

-02 .046 -02E
-03B .062 -03C
-04K .078 -04A
1/8 NPT 3/8 NPT -05G .093 -05H
-06 .109 -06
* -07C .125 -07D

3/4 -08 .140 -08

-09 .156 -09
-10 .187 -10H
3/4 -11 .172 -11F
*Standard
3 3/8
2 3 5 When ordering parts, please specify:
• All Nameplate Data
• Item Number
7/8 4 • Description
3/8 NPT • Recommended Spare Parts
Inlet Outlet
8

2 1/4 MAX. 7

1 6

ITEM DESCRIPTION MATERIAL QTY.

1 Body Red Brs. 1

2 Plug, Top Brass 1

3 "O" Ring, Plug Top Syn. Rub. 1

4 Screen Monel 1
5 Orifice Plug Delrin 1

6 Plug, Pipe Brass 1

7 Strainer Plug S.S. 1

8 "O" Ring, Strainer Plug Syn. Rub. 1

CLA-VAL P.O. Box 1325 • Newport Beach, CA 92659-0325 • Phone: 949-722-4800 • Fax: 949-548-5441 • E-mail: claval@cla-val.com • Website cla-val.com
©
Copyright Cla-Val 2011 Printed in USA Specifications subject to change without notice. PL-x44a (R-3/2011)
 PARTS LIST

81-01
3/8" Check Valve

ITEM DESCRIPTION

1. Cover Screw (8 Required)

A A 2.
*3.
Cover
Spring
2.50 4. Diaphragm Washer
*5. Diaphragm
*6. Disc Retainer Assembly
7. Body Plug (3/8 NPT)
8. Body (Threaded)

*Recommended Spare Parts

2
3
1
4

1.50 5
6
3/8 N.P.T.
BOTH ENDS
Outlet Inlet

When ordering
1.25 8 parts, please
specify:
3/8 N.P.T.
7 • All nameplate data
• Description
Flow • Part Number
2.75 • Item Number
• Material
SECTION AA
 PARTS LIST

81-01
1/2" & 3/4 Check Valve

ITEM DESCRIPTION

1. Body 1
2. Cover 1
*3. Diaphragm 1
4. Guide Disc 1
*5. Disc Retainer Assembly 1
7. Nut Hex 3/8 - 24UNF 28 1
3.12 DIA 8. Plug Pipe Hex NPT 2
9. Screw, Fil HD 10 32UNF 2 x 2LG 8
2 10. Spring 1
10 11. Nameplate 1
7
*Recommended Spare Parts
6

11

2.56

3
5
1
4
INLET OUTLET
.56 When ordering
8
parts, please
specify:
• All nameplate data
FLOW
• Description
3.50 • Part Number
• Item Number
• Material

CLA-VAL P.O. Box 1325 • Newport Beach, CA 92659-0325 • Phone: 949-722-4800 • Fax: 949-548-5441 • E-mail: claval@cla-val.com • Website cla-val.com
©
Copyright Cla-Val 2011 Printed in USA Specifications subject to change without notice.
PL-81-01 (R-3/2011)
 MODEL
X141
Cla-Val Gauge Option
• Liquid-Filled
• Dual Scale (PSI / BAR)
• Long Life Stainless Steel Construction
• Tamper-Resistant Design
• 2 1⁄2" and 4" Diameter Sizes
• Isolation Valve Included
The Cla-Val Model X141 Pressure Gauge Option consists of
glycerin-filled pressure gauges with Cla-Val Logo installed
with 1⁄4” CK2 Bronze Isolation Valves on main valve inlet and
outlet. Gauges are waterproof, shock resistant, and fully
enclosed with Stainless Steel case and Bronze wetted parts.
All gauges have dual scale (PSI/BAR) and 1.5% F.S. accura-
Model X141 cy with 1/4" NPT bottom connection. 2 1⁄2" Diameter Dial sup-
4" Pressure Gauge plied with 6" and smaller valves. 4" Diameter Dial supplied
with 8" and larger valves. Available installed on new valves
and must be specified on customer Purchase Order. Other
materials available - consult factory.

Available Pressure Ranges

Typical Installation of X141
X141 Gauge Assembly for 6" and smaller valves
(2 1/2" Diameter Dial)
Pressure
Range* Part Number
0 - 60 psi 20534301 A
0 - 100 psi 20534302K
0 - 160 psi 20534311J
0 - 200 psi 20534303J
0 - 300 psi 20534304H
0 - 400 psi 20534305G
Typical Installation of X141 Both Gauges Installed
X141 Gauge Assembly for 8" and larger valves
(4" Diameter Dial)
Pressure
Range* Part Number
0 - 60 psi 20534306F
0 - 100 psi 20534307E
0 - 200 psi 20534308D
0 - 300 psi 20534309C
0 - 400 psi 20534310K

*Specify desired pressure range and valve location (inlet or outlet) on order.

CLA-VAL P.O. Box 1325 • Newport Beach, CA 92659-0325 • Phone: 949-722-4800 • Fax: 949-548-5441 • E-mail: claval@cla-val.com • Website cla-val.com
© Copyright
Cla-Val 2012 Printed in USA Specifications subject to change without notice. E-X141 (R-7/2012)
 MODEL 50B-4KG1/2050B-4KG1
Product Identification
How to Order
Proper Identification
For ordering repair kits, replacement parts, or for inquiries
concerning valve operation it is important to properly iden-
tify Cla-Val products already in service. Include all name-
plate data with your inquiry. Pertinent product data includes
valve function, size, material, pressure rating, end details,
type of pilot controls used and control adjustment ranges.
Identification Plate
For product identification, cast in body markings are sup-
plemented by the identification plate illustrated on this
page. The plate is mounted in the most practical position. It
is extremely important that this identification plate is
not painted over, removed, or in any other way ren-
dered illegible.

Specify when How To Order Unless Otherwise

ordering There are many valves and con- Specified
• Model Number trols manufactured by Cla-Val. that • X43 “Y” Strainer is
• Adjustment Range are not listed due to the sheer vol- included.
(As Applicable) ume. For information not listed, • CK2 Isolation Valves is
• Valve Size please contact your local Cla-Val included in price on 6" and
• Optional Features representative. larger valve sizes.
• Pressure Class

Limited Warranty Disclaimer Of Warranties And

Automatic valves and controls as manufactured by Cla-Val are Limitations Of Liability
warranted for one year from date of shipment against manufac- The foregoing warranty is exclusive and in lieu of all other
turing defects in material and workmanship which develop in the warranties and representations, whether expressed, implied,
service for which they are designed, provided the products are oral or written, including but not limited to any implied war-
installed and used in accordance with all applicable instruc- ranties or merchantability or fitness for a particular purpose.
tions and limitations issued by Cla-Val. Electronic components All such other warranties and representations are hereby
manufactured by Cla-Val are warranted for one year from the date of
cancelled.
shipment.
Cla-Val shall not be liable for any incidental or consequential
We will repair or replace defective material, free of charge,
loss, damage or expense arising directly or indirectly from
which is returned to our factory, transportation charges prepaid,
the use of the product. Cla-Val shall not be liable for any
provided that, after inspection, the material is found to have
damages or charges for labor or expense in making repairs
been defective at time of shipment. This warranty is expressly
or adjustments to the product. Cla-Val shall not be liable for
conditioned on the purchaser’s giving Cla-Val immediate written
any damages or charges sustained in the adaptation or use
notice upon discovery of the defect.
of its engineering data and services. No representative of
Components used by Cla-Val but manufactured by others, are Cla-Val may change any of the foregoing or assume any
warranted only to the extent of that manufacturer’s guarantee. additional liability or responsibility in connection with the
This warranty shall not apply if the product has been altered or product. The liability of Cla-Val is limited to material replace-
repaired by others, and Cla-Val. shall make no allowance or ments F.O.B. Newport Beach, California.
credit for such repairs or alterations unless authorized in writing
by Cla-Val.
Terms Of Sale
Risk
ACCEPTANCE OF ORDERS All goods are shipped at the risk of the purchaser after they have been
All orders are subject to acceptance by our main office at delivered by us to the carrier. Claims for error, shortages, etc., must be
Newport Beach, California. made upon receipt of goods.
CREDIT TERMS EXPORT SHIPMENTS
Credit terms are net thirty (30) days from date of invoice. Export shipments are subject to an additional charge for export packing.

PURCHASE ORDER FORMS RETURNED GOODS

Orders submitted on customer’s own purchase order forms will be 1. Customers must obtain written approval from Cla-Val prior to return-
accepted only with the express understanding that no statements, ing any material.
clauses, or conditions contained in said order form will be binding on
the Seller if they in any way modify the Seller’s own terms and con- 2. Cla-Val reserves the right to refuse the return of any products.
ditions of sales. 3. Products more than six (6) months old cannot be returned for credit.
PRODUCT CHANGES 4. Specially produced, non-standard models cannot be returned for
The right is reserved to make changes in pattern, design or materi- credit.
als when deemed necessary, without prior notice.
5. Rubber goods cannot be returned for credit, unless as part of an
PRICES unopened repair kit which is less than six months old.
All prices are F.O.B. Newport Beach, California, unless expressly
stated otherwise on our acknowledgement of the order. Prices are 6. Goods authorized for return are subject to a 35% ($75 minimum)
subject to change without notice. The prices at which any order is restocking charge and a service charge for inspection, reconditioning,
accepted are subject to adjustment to the Seller’s price in effect at replacement of rubber parts, retesting and repackaging as required.
the time of shipment. Prices do not include sales, excise, municipal, 7. Authorized returned goods must be packaged and shipped prepaid to
state or any other Government taxes. Minimum order charge Cla-Val., 1701 Placentia Avenue, Costa Mesa, California 92627-4475.
$75.00.
RESPONSIBILITY
We will not be responsible for delays resulting from strikes, acci-
dents, negligence of carriers, or other causes beyond our control.
Also, we will not be liable for any unauthorized product alterations or
charges accruing there from.

CLA-VAL Represented By:

PO Box 1325 Newport Beach CA 92659-0325
Phone: 949-722-4800 Fax: 949-548-5441
CLA-VAL CANADA CLA-VAL EUROPE
4687 Christie Drive Chemin dés Mesanges 1
Beamsville, Ontario CH-1032 Romanel/
Canada L0R 1B4 Lausanne, Switzerland
Phone: 905-563-4963 Phone: 41-21-643-15-55
Fax: 905-563-4040 Fax: 41-21-643-15-50
©COPYRIGHT CLA-VAL 2011 Printed in USA
E-50B-4KG1 P.I.D. (R-3/2011) Specifications subject to change without notice. www.cla-val.com
 INSTALLATION / OPERATION / MAINTENANCE

MODEL
REPAIR KITS

Complete Replacement Diaphragm Assemblies for 100-01 and 100-20 Hytrol Main Valves
For: Hytrol Main Valves with Ductile Iron, Bronze Trim Materials—125/150 Pressure Class Only.
FACTORY ASSEMBLED
Includes: Stem, Disc Guide, Disc, Disc Retainer, Spacer Washers, Diaphragm, Diaphragm Washer
and Stem Nut.

Valve Diaphragm Assembly Valve Diaphragm Assembly

Size Stock Number Size Stock Number
100-01 100-20 100-01 100-20
3/8" (Also 81-01 ) 49097K N/A 6" 40456G 33273E
1/2" - 3/4" (Also 81-01 ) C2518D N/A 8" 45276D 40456G
1" C2520K N/A 10" 81752J 45276D
1 1/4"-1 1/2" C2522 F N/A 12" 85533J 81752J
2" C2524B N/A 14" 89067D N/A
2 1/2" C2523D N/A 16" 89068B 85533J
3" C2525J C2524B 20" N/A 89068B
4" 33273E C2525J 24" N/A 89068B

Repair Kits for 100-01/100-20 Hytrol Valves

For: Hytrol Main Valves—125/150 Pressure Class Only.
Includes: Diaphragm, Disc (or Disc Assembly) and spare Spacer Washers.

Buna-N® Standard Material Viton (For KB Valves)

Valve Repair Kit Valve Repair Kit
Size Stock Number Size Stock Number
100-01 100-20 100-01 100-20
3/8" (Also 81-01 ) 9169801K N/A 3/8" (Also 81-01 ) 9169806J N/A
1/2" - 3/4" (Also 81-01 ) 9169802H N/A 1/2" - 3/4" (Also 81-01 ) 9169807G N/A
1" 9169803F N/A 1" 9169808E N/A
1 1/4" - 1 1/2" 9169804D N/A 1 1/4” - 1 1/2" 9169809C N/A
2" 9169805A N/A 2" 9169810A N/A
2 1/2" 9169811J N/A 2 1/2" 9169817F N/A
3" 9169812G 9169805A 3" 9169818D 9169810A
4" 9169813E 9169812G 4" 9169819B 9169818D
6" 9169815K 9169813E 6" 9169820K 9169819B
8" 9817901D 9169815K 8" 9169834A 9169820K
10" 9817902B 9817901D
12" 9817903K 9817902B
14" 9817904H N/A
16" 9817905E 9817903K
20" N/A 9817905E
24" 9817906C 9817905E

When ordering, please give complete nameplate data of the valve and/or control being repaired.
MINIMUM ORDER CHARGE APPLIES.
Repair Kits for 100-02/100-21 Powertrol and 100-03/100-22 Powercheck Main Valves
For: Powertrol and Powercheck Main Valves—125/150 Pressure Class Only
Includes: Diaphragm, Disc (or Disc Assembly) and O-rings and full set of spare Spacer Washers.
Valve Kit Stock Number Valve Kit Stock Number
Size 100-02 Size 100-02 & 100-03 100-21 & 100-22
⁄8”
3
9169901H 21⁄2” 9169910J N/A
1
⁄2” & 3⁄4” 9169902F 3” 9169911G 9169905J
1” 9169903D 4” 9169912E 9169911G
11⁄4” & 11⁄2” 9169904B 6” 9169913C 9169912E
2” 9169905J 8” 99116G 9169913C
10” 9169939H 99116G
12" 9169937B 9169939H
Repair Kits for 100-04/100-23 Hy-Check Main Valves Larger Sizes: Consult Factory.
For: Hy-Check Main Valves—125/150 Pressure Class Only
Includes: Diaphragm, Disc and O-Rings and full set of spare Spacer Washers.
Valve Kit Stock Number Valve Kit Stock Number
Size 100-04 100-23 Size 100-04 100-23
4” 20210901B N/A 12” 20210905H 20210904J
6” 20210902A 20210901B 14” 20210906G N/A
8” 20210903K 20210902A 16” 20210907F 20210905H
10” 20210904J 20210903K 20” N/A 20210907F
24” N/A 20210907F

Repair Kits for Pilot Control Valves (In Standard Materials Only) Larger Sizes: Consult Factory.
Includes: Diaphragm, Disc (or Disc Assembly), O-Rings, Gaskets or spare Screws as appropriate.

BUNA-N® (Standard Material) VITON (For KB Controls)

Kit Kit Kit
Pilot Pilot Pilot
Stock Stock Stock
Control Control Control
Number Number Number
CDB 9170006C CFM-7 1263901K CDB-KB 9170012A
CDB-30 9170023H CFM-7A 1263901K CRA-KB N/A
CDB-31 9170024F CFM-9 12223E CRD-KB (w/bucking spring) 9170008J
CDB-7 9170017K CRA (w/bucking spring) 9170001D CRL-KB 9170013J
CDH-2 18225D CRD (w/bucking spring) 9170002B CDHS-2BKB 9170010E
CDHS-2 44607A CRD (no bucking spring) 9170003K CDHS-2FKB 9170011C
CDHS-2B 9170004H CRD-18 20275401K CDHS-18KB (no bucking spring) 9170009G
CDHS-2F 9170005E CRD-22 98923G 102C-KB 1726202D
CDHS-3C-A2 24657K CRL (55F, 55L) 9170007A
CDHS-8A 2666901A CRL/55L-60 9170033G
CDHS-18 9170003K CRL-4A 43413E
CDS-4 9170014G CRL-5 (55B) 65755B
CDS-5 14200A CRL-5A (55G) 20666E
CDS-6 20119301A CRL-18 20309801C
CDS-6A 20349401C CV 9170019F
X105L (O-ring) 00951E Buna-N®
CFCM-M1 1222301C 102B-1 1502201F CRD Disc Ret. (Solid) C5256H
CFM-2 12223E 102C-2 1726201F CRD Disc Ret. (Spring) C5255K
102C-3 1726201F
Repair Assemblies (In Standard Materials Only)
Control Description Stock Number
CF1-C1 Pilot Assembly Only 89541H
CF1-Cl Complete Float Control less Ball and Rod 89016A
CFC2-C1 Disc, Distributor and Seals 2674701E
CSM 11-A2-2 Mechanical Parts Assembly 97544B
CSM 11-A2-2 Pilot Assembly Only 18053K
33A 1" Complete Internal Assembly and Seal 2036030B
33A 2" Complete Internal Assembly and Seal 2040830J
When ordering, please give complete nameplate data of the valve and/or control being repaired. MINIMUM ORDER CHARGE APPLIES

CLA-VAL P.O. Box 1325 • Newport Beach, CA 92659-0325 • Phone: 949-722-4800 • Fax: 949-548-5441 • E-mail: claval@cla-val.com • Website cla-val.com
© Copyright Cla-Val 2014 Printed in USA Specifications subject to change without notice. N-RK (R-05/2014)
Flow Meter
(IF APPLICABLE)

SPP PUMPS, INC.