PROCESS VALVES

WKM® Saf-T-Seal®
API 6D Gate Valves

®
WKM
PROCESS VALVES
 PROCESS VALVES

TABLE OF CONTENTS

WKM SAF-T-SEAL API 6D

THROUGH CONDUIT GATE VALVES
Design 2
Operating Principles 3
Features 4
Model M Principal Dimensions
Handwheel Operated
2 in. - 4 in. (50 mm - 100 mm)
600 - 1500 Class 8
Model C6 and C6B Principal Dimensions
Handwheel Operated and Bevel Gear Operated
6 in. - 12 in. (150 mm - 300 mm)
150 - 900 Class 9
Model C2B Principal Dimensions
Bevel Gear Operated
14 in. - 36 in. (350 mm - 900 mm)
150 - 300 Class 10
Model C2C Principal Dimensions
Bevel Gear Operated
14 in. - 36 in. (350 mm - 900 mm)
600 - 900 Class 11
WKM Saf-T-Gard Actuators 12
Operator Sizing
2 in. - 36 in. (50 mm - 900 mm) 18
Topworks Data
2 in. - 12 in. (50 mm - 300 mm) 20
Flow Coefficients (CV) 23
Flow Coefficients (KV) 24
Partial Open Flow Characteristics (CV or KV) 25
Common Trims 26
Trim Chart 27
TRADEMARK INFORMATION 28

® CT-WKM-GATE-SAF-T-SEAL
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 PROCESS VALVES

WKM SAF-T-SEAL API 6D THROUGH CONDUIT GATE VALVES

THE WKM SAF-T-SEAL VALVE’S THROUGH CONDUIT DESIGN PROVIDES THESE SPECIFIC
ADVANTAGES RESULTING IN RELIABLE PERFORMANCE AND LONG LIFE:

PROTECTION OF SEAT FACES

• Seat faces are outside the flow stream
and in full contact with the gate, in both
fully open and fully closed positions.
Seat life is thus greatly extended
SMOOTH, CONTINUOUS CONDUIT
FOR FLOW
• Destructive turbulence is eliminated.
In a full bore valve, pressure drop
through the valve is no greater than
that through an equal length of equal
diameter pipe
BLOCK-AND-BLEED CAPABILITY
• The valve in closed position forms a
tight mechanical seal on both seats
simultaneously, which allows the body
cavity to be bled
COMMONLY USED APPLICATIONS
• Mainline and manifold valves in liquids
pipelines
• Storage wells (salt domes, etc.)
"SLS" Stem Seal • Water flood
Seal is self adjusting • Safety valves (Emergency Shutdown
and does not depend
Valves - ESD). Pipelines, wellheads and
on Plastic Packing
salt domes

Blowout Proof Stem

with Backseat

Metal Wave Spring to

ensure a bubble-tight seal

Full bore through conduit

design eliminates turbulence

Saf-T-Seal Valve Model C6B 6 in. - 12 in. (150 mm - 300 mm) Class 600 - 900

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WKM SAF-T-SEAL API 6D THROUGH CONDUIT GATE VALVES

OPERATING PRINCIPLES SUMMARY OF MODEL C6B
The WKM Saf-T-Seal Gate Valve is a simple, yet rugged and 1. THROUGH CONDUIT SLAB GATE VALVE
reliable, through conduit gate valve. It utilizes two floating • Provides a tight pressure activated seal
seats to provide a complete seal with the gate. Each seat
contains a metal seat face plus a peripheral seal. • Full bore design minimizes pressure drop
and allows passage of all types of scrapers
The full bore design has the same pressure drop as an (pigs)
equivalent length of pipe and allows passage of all types of
scrapers (pigs). 2. CAMERON "SLS" STEM SEAL SYSTEM OR
VEE-PACKING WITH INJECTABLE PLASTIC
The body center section is cast as a single piece to provide
PACKING.
the necessary strength to resist pipeline bending moments.
At very low pressure, the rear wave spring urges the seat 3. FLOATING SEATS
toward the gate to provide an initial seal. A plastic face seal • Block-and-Bleed per API 6D
helps initialize the seal and provides a wiping action to help • Simple one-piece design is resistant to
keep the gate sealing surfaces free of debris. High dirty service
temperature valves do not have the insert. The gate is
pressed metal-to-metal against the wide flat seat face at • Insert initiates the seal and helps clean
higher pressures. Likewise, the seat is pressed metal-to- the gate
metal to the body at the higher pressure. The seat faces are • Excess body pressure is automatically
outside of the flow stream and thus protected when the vented upstream
valve is in the full open or closed position. Excess body • Seats may be lubricated to promote long
pressure is automatically vented to the upstream conduit by life, minimize operating torques, or
the seat. External body cavity relief systems are not required. effect a seal in an emergency
WKM Saf-T-Seal Gate Valves do not depend on lubricant for 4. BOLTED BONNET VALVE IS IN-LINE
a seal in normal operation. However, lubricants/sealants can REPAIRABLE
be injected to promote smooth operation. Seat sealant can
also be injected to affect a seal in an emergency should the 5. SINGLE PIECE CAST BODY CENTER SECTION
seats become damaged due to foreign matter. • Provides the necessary strength to resist
The stem is sealed by the CAMERON SLS Stem Seal System. pipeline bending moments
Refer to page 7 for details. • Smooth shape minimizes stress
The bonnet seal is made by an O-ring. High temperature concentrations
valves use a spiral wound metal gasket with a non-asbestos • Made from pressure vessel quality steel
filler.
6. VALVE STROKE IS ESTABLISHED BY
The valve stroke is established by manufacturing tolerances MANUFACTURING TOLERANCES
and cannot get out of adjustment.
WKM Saf-T-Seal Gate Valves are supplied with indicator rods • Cannot get out of adjustment
for position indication as a standard for handwheel and bevel 7. VALVES AVAILABLE WITH HANDWHEEL
gear operated valves. OPERATORS, BEVEL GEAR OPERATORS,
WKM Saf-T-Seal Options are: OR LESS GEARING (BARE STEM)
• Available with handwheel operators, bevel gear operators, • Also available with electric motor
or less gearing (bare stem). Electric motor operators or operators, Saf-T-Gard piston or
Piston actuators from a variety of suppliers can be offered diaphragm pneumatic actuators
• Available as Surface Safety Valves with SAF-T-GARD piston 8. LUBE, PACKING AND DRAIN EXTENSIONS
or diaphragm pneumatic actuators and SAF-T-GARD ARE AVAILABLE
hydraulic actuators
9. STEM/YOKE EXTENSIONS ARE AVAILABLE
• Available in "Adapted for" configurations for actuator
adaptation by actuator suppliers 10. VARIETY OF AVAILABLE PAINTS/COATINGS
• Available with Lubrication/Packing/Drain Extensions 11. UPGRADES
• Available with Stem/Yoke Tube Extensions • Stem backseat with test port
• Available with a variety of coatings including Coal Tar • "SLS" Stem Seal in bonnet
Epoxy for buried service, 2-3 Part Coating Systems for • Seat with wave spring to seal on low
marine environments, Inorganic Zinc Rich Epoxy, etc. pressure air
• Complies to API 6D and B16.34

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WKM SAF-T-SEAL API 6D THROUGH CONDUIT GATE VALVES

FEATURES
THROUGH CONDUIT DESIGN: DOUBLE-SEALING REPLACEABLE SEATS
SMOOTH BORE, MINIMUM PRESSURE Seats can be removed and replaced while the
DROP, PROTECTED SEAT FACES valve is in the line. Seats are provided with plastic
inserts and thus affect a double seal - an initial
The WKM Saf-T-Seal Gate Valve’s smooth,
plastic-to-metal seal in addition to a metal-to-
continuous bore minimizes turbulence. In full
metal seal - both upstream and downstream.
bore valves pressure drop is no more than
through an equal length of the same size pipe.
Seat faces are outside the flow stream and
thus protected from contact with the lading
whether the valve is open or closed.
The WKM Saf-T-Seal Gate Valve’s full round
bore makes it possible to run pigs, scrapers or
hot tap cutters through the valves without
danger of damaging the valve, lodging the
scraper, or jamming it with metal cutting.

GATE AND STEMS

WKM Saf-T-Seal gates and stems
ON-LINE OVERHAUL are Nickel Plated. HF-6 overlay is
WKM Saf-T-Seal Gate Valves can be overhauled available on request for the gate
right on the line. Gate, seats and other internal and seat sealing surfaces.
parts can be removed and replaced by a trained
serviceman without excessive shutdown time.

EXTENSIONS
For valves which are to be
buried, operated from a catwalk,
or otherwise difficult to reach,
stem and body fitting extensions
can be supplied in virtually any
desired length in 6 inch
increments from the minimum
extension length that can be
furnished. Extensions come as
original equipment or can be
field-installed on valves already
in service.

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WKM SAF-T-SEAL API 6D THROUGH CONDUIT GATE VALVES

MODELS C6, C2B AND C2C
EXCELLENT BLOCK-AND-BLEED CAPABILITY - AUTOMATIC RELIEF OF EXCESS BODY PRESSURE

1
2

1. With equal pressure through the valve, and gate in 2. As line pressure (2) is applied to the valve, it acts on
closed position, an initial seal (1) is formed with the the gate, forcing it against the plastic ring on the
raised plastic ring on the faces of the seats. The seat downstream seat, compressing it until the gate rests
inserts clean both sides of the gate each time the against the steel seat. Thus, a double seal is formed...
valve is opened or closed. first, a plastic-to-metal seal; then metal-to-metal.
The seal is also forced firmly into its recess.
The O-ring (3) prevents any downstream flow at this
point.

3. An upstream seal is provided when body pressure is 4. Valve automatically relieves itself of excessive body
bled off. This is caused by the force of line pressure pressure. When body pressure exceeds line pressure,
acting against the upstream seat (4) moving the seat from such causes as thermal expansion, the upstream
against the gate and providing a tight plastic-to-metal seat is forced back into its recess and the excess
seal at this point. At the same time, the O-ring (5) pressure in the body is bled between the seat and the
forms a tight seal with the seat recess. gate into the line.

EMERGENCY SEALANT INJECTION

SEAT FACE GROOVE
WKM Saf-T-Seal Gate Valves do not depend on grease
O-RING
for a seal in normal operation. However, in the event
of damage to sealing members, sealant can be injected
to effect a seal until the valve can be repaired.
In valves of the 6 in. (150 mm) size and larger, the
PERIPHERAL sealant is pumped through body fittings directly into
GROOVE AND
SEALANT a groove on the face of the seat. In smaller valves the
INJECTION sealant is injected through fittings into the valve body.
PORT
RE-PACKING UNDER PRESSURE
PLASTIC INSERT The WKM Saf-T-Seal Gate Valve is equipped with
Cameron "SLS" stem packing in an enclosed packing
box. Plastic stem packing can be added while the
valve is under pressure in case of an emergency.

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WKM SAF-T-SEAL API 6D THROUGH CONDUIT GATE VALVES

MODEL C6B
EXCELLENT BLOCK-AND-BLEED CAPABILITY - AUTOMATIC RELIEF OF EXCESS BODY PRESSURE

1
2

1. With equal pressure through the valve, and gate in 2. As line pressure (2) is applied to the valve, it acts on
closed position, an initial seal (1) is formed with the the gate, forcing it against the plastic ring on the
raised plastic ring on the faces of the seats. The seat downstream seat, compressing it until the gate rests
inserts clean both sides of the gate each time the against the steel seat. Thus, a double seal is formed...
valve is opened or closed. first, a plastic-to-metal seal; then metal-to-metal.
The seal is also forced firmly into its recess.
The O-ring (3) prevents any downstream flow at this
point.

3. An upstream seal is provided when body pressure is 4. Valve automatically relieves itself of excessive body
bled off. This is caused by the force of line pressure pressure. When body pressure exceeds line pressure,
acting against the upstream seat (4) moving the seat from such causes as thermal expansion, the upstream
against the gate and providing a tight plastic-to-metal seat is forced back into its recess and the excess
seal at this point. At the same time, the O-ring (5) pressure in the body is bled between the seat and the
forms a tight seal with the seat recess. gate into the line.

EMERGENCY SEALANT INJECTION

SEAT FACE GROOVE
WKM Saf-T-Seal Gate Valves do not depend on grease
O-RING for a seal in normal operation. However, in the event
of damage to sealing members, sealant can be injected
to effect a seal until the valve can be repaired.
In valves of the 6 in. (150 mm) size and larger, the
PERIPHERAL sealant is pumped through body fittings directly into
GROOVE AND
SEALANT a groove on the face of the seat. In smaller valves the
INJECTION sealant is injected through fittings into the valve body.
PORT
RE-PACKING UNDER PRESSURE
PLASTIC INSERT
The WKM Saf-T-Seal Gate Valve is equipped with
Cameron "SLS" stem packing in an enclosed packing
box. Plastic stem packing can be added while the
valve is under pressure in case of an emergency.

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WKM SAF-T-SEAL API 6D THROUGH CONDUIT GATE VALVES

MODEL C6B
DESCRIPTION
The SLS Stem Seal is a system designed to provide The Single Spring Loaded Lip Seal (SLS) is a self-adjusting
optimum performance with a minimum of seal that is designed to be maintenance free. It does not
maintenance. This seal is hydrocarbon fugitive depend on plastic packing to seal. The SLS Seal consists
emissions tested and has demonstrated seal ability of a shell and a metal spring. The shell contains four (4)
not to exceed 500 ppm leakage. The SLS Stem separate sealing bands to promote reliability. It is made of
Sealing System has passed Fire Tests per a filled PTFE compound which is compatible with virtually
API 6FA, BS 6755 Part 11, and ISO 10497.* all media/ladings. The metal spring provides the initial seal
It consists of the following: and provides uniform loading over a wide temperature
range. It is made from a corrosion resistant alloy making it
• Single Spring Loaded Lip Seal suitable for most all line media. The lantern ring acts as a
• Lantern Ring spacer and along with the upper adapter, acts as a bearing
• Chevron Ring(s) to center the stem. The lower pedestal supports the SLS
Seal and acts as a stem scraper to keep contaminants away
• Lower Pedestal
from the sealing members. The Chevron ring(s) provide a
• Upper Adapter seal should it be necessary to inject plastic packing and
* Editions in effect at the time of testing. helps keep foreign matter away from the seal. The system
Note: Model C6B Saf-T-Seal Only works without a plastic injectable. In an emergency, plastic
packing can be injected into the packing box to affect a
temporary seal while the valve is under pressure.

MODEL C6B DETAILS Metal upper adapter Vee ring(s) provide

centers the stem a seal should it be
necessary to inject
plastic packing and
acts as a wiper
Metal lantern ring
centers the stem
and acts as a spacer

Pedestal supports SLS Seal is fugitive

the SLS Stem Seal, emissions tested,
and acts as a wiper compatible with
to keep contaminants most media/ladings
away from the seals and is fire tested
to API 6FA. Metal
spring provides
and initial seal.

PACKING INJECTION PORT

STEM BACKSEAT PORT

STEM BACKSEAT

SEAT WAVE SPRING

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WKM SAF-T-SEAL API 6D THROUGH CONDUIT GATE VALVES

HANDWHEEL OPERATED
2 in. - 4 in. (50 mm - 100 mm)

MAX. WP @ 100°F
Class 600: 1500 psi CWP
2250 psi Test
Class 900: 2250 psi CWP
3375 psi Test
Class1500: 3750 psi CWP
5625 psi Test G

PRINCIPAL DIMENSIONS
N = Number of turns of Handwheel to fully open or close valve.
* Some valves may require a Gear Operator to meet API 6D.
MODEL M - CLASS 600
Size in. * Weight lb. (kg)
(mm) A B F G H N FE WE FxW
2 11 1/2 2 1/16 4 13/16 17 3/4 12 15 3/4 90 72 84
(50) (292) (52) (122) (451) (305) 15 3/4 (41) (33) (38)
3 14 3 3/16 6 15/16 24 3/8 12 20 1/4 180 144 155
(80) (356) (81) (176) (619) (305) 20 1/4 (82) 1(65) (70)
4 17 4 1/8 8 5/8 29 14 19 1/2 345 259 245
(100) (432) (105) (219) (737) (356) 19 1/2 (156) (117) (111)

MODEL M - CLASS 900

2 14 1/2 2 1/16 5 1/16 17 3/4 12 15 3/4 150 72 105
(50) (368) (52) (129) (451) (305) 15 3/4 (68) (33) (48)
3 15 3 3/16 7 5/16 24 3/8 12 20 1/4 265 193 247
(80) (381) (81) (186) (619) (305) 20 1/4 (120) (88) (112)
4 18 4 1/8 9 1/16 29 18 19 1/2 515 390 417
(100) (457) (105) (230) (737) (457) 19 1/2 (234) (177) (189)

MODEL M - CLASS 1500

2 14 1/2 2 1/16 5 1/16 17 3/4 12 15 3/4 220 150 154
(50) (368) (52) (129) (451) (305) 15 3/4 (100) (68) (70)
3 18 1/2 3 3/16 7 5/16 24 3/8 12 20 1/4 450 328 370
(80) (470) 3(81) (186) (619) (305) 20 1/4 (204) (149) (168)
4 21 1/2 4 1/8 9 1/16 29 18 19 1/2 720 547 583
(100) (546) (105) (230) (737) (457) 19 1/2 (327) (248) (264)

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WKM SAF-T-SEAL API 6D THROUGH CONDUIT GATE VALVES

HANDWHEEL OPERATED AND BEVEL GEAR OPERATED
6 in. - 12 in. (150 mm - 300 mm) H

MAX. WP @ 100°F
Class 150: 290 psi CWP
450 psi Test
Class 300: 750 psi CWP
1125 psi Test G G
Class 600: 1500 psi CWP K
2250 psi Test
Class 900: 2250 psi CWP
3375 psi Test

B B

F F
PRINCIPAL DIMENSIONS
N = Number of turns to fully open or close valve.
SN = Stem nut.
BGO = Bevel Gear Operator. A A
* Some valves may require a Gear Operator to meet API 6D. HANDWHEEL-OPERATED BEVEL GEAR-OPERATED

MODEL C6 - CLASS 150

SIZE G G * N N Weight lbs (kg)
(in.) A B F (HWO) (BGO) H K SN BGO FE WE WXF
6 10 1/2 6 13 1/2 45 3/8 46 3/8 24 30 3/4 29 116 245 215 230
(150) (267) (152) (343) (1153) (1178) (610) (781) 29 116 (111) (98) (104)
8 11 1/2 8 16 1/2 52 3/8 55 3/8 24 35 7/8 37 148 365 320 342
(200) (292) (203) (419) (1330) (1407) (610) (911) 37 148 (166) (145) (155)
10 13 10 19 1/2 59 1/2 60 1/2 24 40 7/8 45 180 515 459 488
(250) (330) (254) (495) (1511) (1537) (610) (1038) 45 180 (234) (208) (221)
12 14 12 22 3/4 68 5/8 69 5/8 24 46 1/8 53 212 677 594 635
(300) (356) (305) (578) (1743) (1768) (610) (1172) 53 212 (307) (269) (288)
MODEL C6 - CLASS 300
6 15 7/8 6 13 1/2 45 3/8 46 3/8 24 30 3/4 29 116 316 271 294
(150) (403) (152) (343) (1153) (1178) (610) (781) 29 116 (143) (123) (133)
8 16 1/2 8 16 1/2 54 3/8 55 3/8 24 35 7/8 37 148 520 459 489
(200) (419) (203) (419) (1381) (1407) (610) (911) 37 148 (236) (208) (222)
10 18 10 19 1/2 59 1/2 60 1/2 24 40 7/8 45 180 773 695 731
(250) (457) (254) (495) (1511) (1537) (610) (1038) 45 180 (351) (315) (332)
12 19 3/4 12 22 5/8 68 5/8 69 5/8 24 46 1/8 53 212 1035 930 983
(300) (502) (305) (578) (1743) (1768) (610) (1172) 53 212 (469) (422) (446)
MODEL C6B - CLASS 600
6 22 6 13 5/8 45 3/8 46 3/8 24 30 3/4 29 116 600 439 650
(150) (559) (152) (346) (1153) (1178) (610) (781) 29 116 (272) (199) (295)
8 26 8 16 3/4 56 3/8 57 3/8 24 37 13/16 37 148 970 737 853
(200) (660) (203) (425) (1432) (1457) (610) (960) 37 148 (440) (334) (387)
10 31 10 20 59 1/2 61 1/2 24 40 7/8 45 180 1736 1584 1656
(250) (787) (254) (508) (1511) (1562) (610) (1038) 45 180 (787) (718) (751)
12 33 12 23 1/4 68 7/8 70 1/2 30 47 1/4 53 318 2374 2010 2156
(300) (838) (305) (591) (1743) (1791) (762) (1200) 53 318 (1077) (912) (9143)
MODEL C6B - CLASS 900
6 24 6 13 7/8 45 1/8 461/8 24 30 3/4 29 116 650 500 575
(150) (610) 152) (352) (1146) (1222) (610) (781) 29 116 (295) (227) (261)
8 29 8 17 1/8 56 1/8 57 1/8 24 37 13/16 37 148 1200 950 1050
(200) (737) (203) (435) (1426) (14510 (610) (960) 37 148 (544) (431) (476)
10 33 10 20 1/2 59 1/2 60 3/4 30 42 1/16 45 180 2150 1830 1980
(250) (838) (254) (521) (1511) (1543) (762) (1068) 45 180 (975) (830) (898
12 38 12 23 3/4 71 3/4 73 1/8 30 48 1/2 53 318 3250 2500 2650
(300) (965) (305) (603) (1822) (1857) (762) (1232) 53 318 (1474) (1134) (1202)

Flange dimensions conform to ASME B16.5, 1981.

Information on power-actuated and other types of valves available on application.

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WKM SAF-T-SEAL API 6D THROUGH CONDUIT GATE VALVES

BEVEL GEAR OPERATED 150 CLASS 300 CLASS

14 in. - 36 in. (350 mm - 900 mm)

H
MAX. WP @ 100°F H
Class 150: 290 psi CWP
450 psi Test
G G
Class 300: 750 psi CWP
1125 psi Test K K

B
B

PRINCIPAL DIMENSIONS F F
N = Number of turns to fully open or close valve.
SN = Stem nut.
BGO = Bevel Gear Operator.
A A
MODEL C2B - CLASS 150
SIZE N N Weight lbs (kg)
(in.) A B F G H K SN BGO FE WE WXF
14 15 13 1/4 25 1/4 76 24 51 3/4 36 3/4 146 7/8 872 760 817
(350) (381) (337) (641) (1930) (610) (1314) 36 3/4 146 7/8 (396) (345) (371)
16 16 15 1/4 28 3/8 82 7/8 24 56 7/8 41 3/4 166 7/8 1309 1163 1235
(400) (406) (387) (721) (2105) (610) (1445) 41 3/4 166 7/8 (594) (528) (560)
18 17 17 1/4 31 3/8 90 24 62 46 1/16 184 3/8 1781 1603 1690
(450) (432) (438) (797) (2286) (610) (1575) 46 1/16 184 3/8 (808) (727) (767)
20 18 19 1/4 34 1/2 98 1/4 24 67 1/4 41 1/2 166 2351 2119 2235
(500) (457) (489) (876) (2496) (610) (1708) 41 1/2 166 (1066) (961) (1014)
24 20 23 1/4 41 1/8 113 24 78 50 1/4 301 1/2 2892 2514 2703
(600) (508) (591) (1045) (2870) (610) (1981) 50 1/4 301 1/2 (1312) (1140) (1226)
26 22 25 43 13/16 120 1/4 24 84 5/8 - - 3521 3172 3327
(650) (559) (635) (1113) (3054) (610) (2149) - - (1597) (1439) (1509)
28 24 27 46 7/8 127 1/4 24 90 1/8 57 7/8 347 1/4 4098 3506 3802
(700) (610) (686) (1191) (3232) (610) (2289) 57 7/8 347 1/4 (1859) (1590) (1725)
30 26 29 50 136 1/4 24 95 1/2 62 1/2 500 4916 4231 4573
(750) (660) (737) (1270) (3461) (610) (2426) 62 1/2 500 (2230) (1919) (2074)
36 32 34 1/2 59 157 36 113 3/8 46 1/8 368 3/4 5842 5264 5521
(900) (813) (876) (1499) (3988) (914) (2880) 46 1/8 368 3/4 (2650) (2388) (2504)
Flange dimensions on valves through 24 in. (600 mm) conform to American National Standards Institute Standard 816.5, 1974.
Larger sizes conform to MSS-SP-44.
MODEL C2B - CLASS 300
SIZE N N Weight lbs (kg)
(in.) A B F G H K SN BGO FE WE WXF
14 30 13 1/4 25 1/2 75 5/8 24 49 1/2 29 3/8 117 1/2 1454 1266 1361
(350) (762) (337) (648) (1921) (610) (1257) 29 3/8 117 1/2 (660) (574) (617)
16 33 15 1/4 28 1/8 80 5/8 24 54 1/2 41 3/4 166 7/8 2182 1939 2058
(400) (838) (387) (714) (2048) (610) (1384) 41 3/4 166 7/8 (990) (880) (933)
18 36 17 1/4 31 88 24 60 3/4 37 3/8 224 1/4 2969 2672 2816
(450) (914) (438) (787) (2235) (610) (1543) 37 3/8 224 1/4 (1347) (1212) (1277)
20 39 19 1/4 34 1/2 97 3/4 24 67 41 1/2 249 3919 3532 3725
(500) (991) (489) (876) (2483) (610) (1702) 41 1/2 249 (1778) (1602) (1690)
24 45 23 1/4 41 1/8 114 1/8 24 78 3/4 50 1/4 402 5868 5287 5545
(600) (1143) (591) (1045) (2899) (610) (2000) 50 1/4 402 (2662) (2398) (2515)
26 49 25 43 3/4 120 1/4 24 83 1/4 - - 6830 5844 6337
(650) (1245) (635) (1111) (3054) (610) (2115) - - (3098) (2651) (2874)
28 53 27 47 129 3/4 24 90 1/4 - - 8194 7051 7623
(700) (1346) (686) (1194) (3296) (610) (2292) - - (3717) (3198) (3458)
Flange30dimensions conform
55 to American
29 National
50 5/8Standards,
139 Institute
1/8 Standard
36 B16.5, 1981. 39 1/16
96 3/4 312 1/2 9736 8773 9201
Information
(750) on power-actuated
(1397) and
(737)other types of valves (3534)
(1286) available on application.
(914) (2457) 39 1/16 312 1/2 (4416) (3979) (4174)
36 68 34 1/2 59 1/4 161 36 112 3/4 46 1/8 368 3/4 15441 13607 14524
(900) (1727) (876) (1505) (4089) (914) (2864) 46 1/8 368 3/4 (7004) (6172) (6588)
Flange dimensions conform to ASME B16.5, 1981.
Information on power-actuated and other types of valves available on application.

10 WKM
® CT-WKM-GATE-SAF-T-SEAL
04/09-ION-3M
 PROCESS VALVES

WKM SAF-T-SEAL API 6D THROUGH CONDUIT GATE VALVES

BEVEL GEAR OPERATED
14 in. - 36 in. (350 mm - 900 mm)

H
MAX. WP @ 100°F
Class 600: 1500 psi CWP
2250 psi Test G
Class 900: 2250 psi CWP
3375 psi Test K

PRINCIPAL DIMENSIONS
N = Number of turns to fully open or close valve.
SN = Stem nut. A
BGO = Bevel Gear Operator.

MODEL C2C - CLASS 600

SIZE N N Weight lbs (kg)
(in.) A B F G H K SN BGO FE WE WXF
14 35 13 1/4 26 75 3/8 24 51 1/2 29 3/8 176 1/4 3232 2828 3030
(350) (889) (337) (660) (1915) (610) (1308) 29 3/8 176 1/4 (1466) (1283) (1374)
16 39 15 1/4 29 1/8 83 1/2 24 56 3/4 33 3/8 200 1/4 4023 3515 3767
(400) (991) (387) (740) (2121) (610) (1441) 33 3/8 200 1/4 (1825) (1594) (1709)
18 43 17 1/4 32 3/8 91 1/2 24 62 1/2 37 3/8 224 1/4 5617 4110 5252
(450) (1092) (438) (822) (2324) (610) (1588) 37 3/8 224 1/4 (2548) (1864) (2382)
20 47 19 1/4 35 7/8 100 1/2 24 69 3/8 26 208 6984 6070 6449
(500) (1194) (489) (911) (2553) (610) (1762) 26 208 (3168) (2753) (2925)
24 55 23 1/4 42 1/4 118 36 83 31 3/8 251 1/4 11447 10014 10730
(600) (1397) (591) (1073) (2997) (914) (2108) 31 3/8 251 1/4 (5192) (4542) (4867)
26 57 25 46 124 5/8 36 87 1/2 33 9/16 268 3/4 13124 11494 10024
(650) (1448) (635) (1168) (3165) (914) (2223) 33 9/16 268 3/4 (5953) (5214) (4547)
28 61 27 49 1/4 134 36 93 1/2 36 3/16 434 14293 12232 12624
(700) (1549) (686) (1251) (3404) (914) (2375) 36 3/16 434 (6483) (5548) (5726)
30 65 29 52 3/4 142 3/4 36 100 1/2 39 1/16 468 3/4 14457 12724 13591
(750) (1651) (737) (1340) (3626) (914) (2553) 39 1/16 468 3/4 (6558) (5772) (6165)
36 82 34 1/2 61 3/4 171 1/4 36 117 1/2 46 1/8 553 1/8 26377 23967 25172
(900) (2083) (876) (1568) (4350) (914) (2985) 46 1/8 553 1/8 (11964) (10871) (11418)
MODEL C2C - CLASS 900
14 40 1/2 12 3/4 25 9/16 79 5/8 24 55 13/16 20 7/8 166 7/8 - - -
(350) (1029) (324) (649) (2022) (610) (1418) 20 7/8 166 7/8 - - -
16 44 1/2 15 1/4 30 7/16 87 3/8 24 60 3/16 20 7/8 166 7/8 - - -
(400) (1130) (387) (773) (2219) (610) (1529) 20 7/8 166 7/8 - - -
18 48 17 1/4 33 7/8 56 15/16 24 64 11/16 23 3/8 187 - - -
(450) (1219) (438) (860) (1446) (610) (1643) 23 3/8 187 - - -
20 52 19 1/4 37 1/4 103 3/8 36 71 1/8 26 208 - - -
(500) (1321) (489) (946) (2626) (914) (1807) 26 208 - - -
24 61 23 1/4 46 1/4 123 1/8 36 86 3/8 - - - - -
(600) (1549) (591) (1175) (3127) (914) (2194) - - - - -

Flange dimensions conform to ASME B16.5, 1981.

Information on power-actuated and other types of valves available on application.

WKM
® CT-WKM-GATE-SAF-T-SEAL
04/09-ION-3M 11
 PROCESS VALVES

WKM SAF-T-SEAL API 6D THROUGH CONDUIT GATE VALVES

ACTUATORS
ELECTRIC AND PNEUMATIC
WKM Saf-T-Seal Gate Valves can be equipped with various makes of actuators in two principal
types: Electric actuators and pneumatic or gas-powered motor drives for bevel gear operators.

INFORMATION REQUIRED FOR SIZING INFORMATION REQUIRED FOR SIZING

ELECTRIC ACTUATORS PNEUMATIC ACTUATORS
• Valve type: Saf-T-Seal • Valve type: Saf-T-Seal
• Size: pipe size x bore size • Size: pipe size x bore size
• Pressure Class • Pressure class
• Top mounted or side mounted • Actual working pressure at which
• Closing time: Number of seconds valve will be operated: psi
• Maximum differential pressure: psi • Available gas pressure to power motor
drive: psi
• Type and make of actuator required
• Top mounted or side mounted
• Voltage:
• Closing time: Number of seconds
3-phase 60-cycle 220V/440V?
• Maximum differential pressure: psi
3-phase 50-cvcle 220V/440V?
• Type and make of actuator required
Control voltage
• Accessories
Motor connection voltage
• Special requirements
Any special requirements
• Enclosure:
Weatherproof?
Explosion proof class 1, Group D, Div. 2?
Any special requirements
ATEX?
Certification required?
• Accessories:
Reversing starter?
Any special requirements
Control transformer?
Any special requirements
Pushbutton station:
3 pushbuttons?
2 lights?
Any special requirements
Limit switches:
2-train geared limit switch (8 contacts)?
4-train geared limit switch (16 contacts)?
• Special requirements

12 WKM
® CT-WKM-GATE-SAF-T-SEAL
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 PROCESS VALVES

®
WKM SAF-T-GARD PNEUMATIC DIAPHRAGM ACTUATOR
MA 12 SERIES
For use with 2 in. (50 mm), 3 in. (80 mm) and 4 in. (100 mm) nominal gate valves (Family Group Code Y55012)

DESCRIPTION
The new Cameron Saf-T-Gard Diaphragm Actuator product line has been developed by using the superior features
of field proven products and then combining them with innovative technology. Particular attention has been given
to safety, ease of maintenance and cost of manufacturing.
The Cameron pneumatic diaphragm actuator series is designed to be used with all manufacturer's gate valves in
nominal sizes of 2 in. to 6 in. (50 mm to 150 mm). Its simple design and operating principle make this diaphragm
actuator inherently trouble free, avoiding most of the problems such as galling, misalignment, distortion and
O-ring failures commonly associated with piston type actuators.
The Saf-T-Gard Diaphragm Actuators are interchangeable with other models in the product line, which minimizes
the amount of spare parts necessary for maintenance.

DESIGN ADVANTAGES
TOP SHAFT
STRONGER ACTUATOR
SEAL RETAINER
MOUNTING ARRANGEMENT ROD WIPER
Unlike other designs, the mounting SNAP RING
bolts on Cameron actuators are POLYPAK SEAL
positioned parallel to the centerline WEAR BEARING
of the actuator, which loads the
DIAPHRAGM NUT
mounting bolts in tension. This
design is not subject to bending and DIAPHRAGM
shear forces; hence, withstanding RETAINER PLATE
greater separation forces than other PRESSURE INLET
PRESSURE
actuators on the market. RELIEF
DEVICE DIAPHRAGM
CORROSION RESISTANT
MATERIALS
All Cameron diaphragm actuators
are manufactured to NACE MR0175, DOWNSTOP
in addition all non-stainless
SPRING
components are coated with Xylan SPACER
to maximize corrosion resistance.
BREATHER PLUG
SUPERIOR DIAPHRAGM MA12
PACKING RETAINER
DESIGN
Cameron diaphragm material is LOWER RING
stronger than most designs currently STEM PACKING
on the market, resulting in extended
service life and higher operating STEM
pressures. Unique sealing grooves METAL-TO-METAL
provide additional grip and improve BACKSEAT
the outer seal of the diaphragm BONNET
housing.
FLEXIBLE ACTUATOR
ORIENTATION
Connecting misaligned components
with rigid tubing can be time
consuming and can induce high stress
into the tubing connections. The MA
lower ring is threaded to the bonnet,
thus allowing rotation of the actuator
to accommodate precise alignment.

WKM
® CT-WKM-GATE-SAF-T-SEAL
04/09-ION-3M 13
 PROCESS VALVES

®
WKM SAF-T-GARD PNEUMATIC DIAPHRAGM ACTUATOR
TOP SHAFT
MA 16 SERIES SEAL RETAINER
ROD WIPER
For use with 2 in., 3 in., 4 in. and 5 in. SNAP RING
(50 mm, 80 mm, 100 mm and 125 mm) POLYPAK SEAL
nominal gate valves WEAR BEARING
(Family Group Code Y55016) DIAPHRAGM NUT
DIAPHRAGM

PRESSURE INLET
PRESSURE RELIEF DEVICE
DIAPHRAGM
RETAINER PLATE
DOWNSTOP
SPRING
SPACER

MA16
BREATHER PLUG
PACKING RETAINER
LOWER RING
STEM PACKING
STEM
METAL-TO-METAL BACKSEAT
BONNET

TOP SHAFT
MA 20 SERIES
SEAL RETAINER
For use with 2 in., 3 in., 4 in., 5 in. ROD WIPER
and 6 in. (50 mm, 80 mm, 100 mm, SNAP RING
POLYPAK SEAL
125 mm and 150 mm)
WEAR BEARING
nominal gate valves
DIAPHRAGM NUT
(Family Group Code Y55020)
DIAPHRAGM
RETAINER PLATE
PRESSURE INLET
PRESSURE RELIEF DEVICE

DIAPHRAGM
DOWNSTOP

SPRING
BREATHER PLUG
MA20
SPACER
PACKING RETAINER
LOWER RING
STEM PACKING
STEM
BONNET

14 WKM
® CT-WKM-GATE-SAF-T-SEAL
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 PROCESS VALVES

®
WKM SAF-T-GARD PNEUMATIC DIAPHRAGM ACTUATOR
TOP SHAFT
MA 1212 SERIES SEAL RETAINER
ROD WIPER
For use with 2 in., 3 in. and 4 in. SNAP RING
(50 mm, 80 mm and 100 mm) POLYPAK SEAL
nominal gate valves WEAR BEARING
DIAPHRAGM NUT
(Family Group Code Y55012)
PRESSURE RELIEF DEVICE PRESSURE INLET
The MA 1212 series doubles the
area affected by applied control
pressure. STEM EXTENSION

DIAPHRAGM
RETAINER PLATE
PRESSURE INLET
DIAPHRAGM

DOWNSTOP
SPRING
SPACER
MA1212 BREATHER PLUG
PACKING RETAINER
LOWER SPRING RETAINER
LOWER RING
STEM PACKING
STEM
BONNET
METAL-TO-METAL

TOP SHAFT
MA 2012 SERIES SEAL RETAINER
ROD WIPER
For use with 2 in., 3 in. and 4 in. SNAP RING
(50 mm, 80 mm and 100 mm) POLYPAK SEAL
nominal gate valves WEAR BEARING
(Family Group Code Y55020) DIAPHRAGM NUT
PRESSURE RELIEF DEVICE PRESSURE INLET
The MA 2012 series increases the
area affected by applied control
pressure. STEM EXTENSION

MA 2012
DIAPHRAGM
RETAINER PLATE
PRESSURE INLET
DIAPHRAGM

DOWNSTOP

SPRING

MA20
BREATHER PLUG
PACKING RETAINER
LOWER RING

STEM
BONNET

WKM
® CT-WKM-GATE-SAF-T-SEAL
04/09-ION-3M 15
 PROCESS VALVES

®
WKM SAF-T-GARD PNEUMATIC DIAPHRAGM ACTUATOR
TOP SHAFT
MA 2016 SERIES SEAL RETAINER
ROD WIPER
For use with 2 in., 3 in., 4 in. and 6 in. SNAP RING
(50 mm, 80 mm, 100 mm and 150 mm) POLYPAK SEAL
nominal gate valves WEAR BEARING
(Family Group Code Y55020) DIAPHRAGM NUT
The MA 2016 series increases the PRESSURE RELIEF DEVICE PRESSURE INLET
area affected by applied control
pressure. STEM EXTENSIONS
DIAPHRAGM
MA2016
RETAINER PLATE

PRESSURE INLET
DIAPHRAGM
PRESSURE RELIEF DEVICE

DOWNSTOP
SPRING
BREATHER PLUG
MA2016
PACKING RETAINER
LOWER RING
STEM
BONNET

TOP SHAFT
MA 2020 SERIES SEAL RETAINER
For use with 2 in., 3 in., 4 in., ROD WIPER
SNAP RING
5 in., 6 in. and 8 in. POLYPAK SEAL
(50 mm, 80 mm, 100 mm, WEAR BEARING
125 mm, 150 mm and 200 mm) DIAPHRAGM NUT
nominal gate valves PRESSURE RELIEF DEVICE PRESSURE INLET
(Family Group Code Y55020)
The MA 2020 series increases the
STEM EXTENSIONS
area affected by applied control
pressure. DIAPHRAGM
MA2020
RETAINER PLATE

PRESSURE INLET
PRESSURE RELIEF DEVICE DIAPHRAGM

DOWNSTOP
SPRING
BREATHER PLUG
MA2020
PACKING RETAINER
LOWER RING
STEM
BONNET

16 WKM
® CT-WKM-GATE-SAF-T-SEAL
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 PROCESS VALVES

®
WKM SAF-T-GARD PNEUMATIC PISTON ACTUATOR

MP 13 SERIES
For use with 2 in., 3 in. and 4 in.
(50 mm, 80 mm and 100 mm)
nominal gate valves
(Family Group Code Y55013)

DESCRIPTION
The Cameron pneumatic piston actuator product line has been developed by using the superior features of field
proven products and then combining them with innovative technology. Particular attention has been given to
safety, ease of maintenance and cost of manufacturing. The Cameron pneumatic piston actuator series is designed
to be used will all manufacturer's gate valves in nominal sizes of 2 in. to 4 in. (50 mm to 100 mm). Its remarkably
simple design and operating principle make this piston actuator suitable for all types of applications. The Cameron
piston actuators are interchangeable and very versatile because they operate with many types of supply gas,
compressed air, nitrogen or well gas.

TOP SHAFT

DESIGN ADVANTAGES PRESSURE RELIEF

SEAL RETAINER
ROD WIPER
SNAP RING
STRONGER ACTUATOR DEVICE
POLYPAK SEAL
MOUNTING ARRANGEMENT PRESSURE INLET
Unlike other designs, the mounting
bolts on Cameron actuators are TOP CAP
positioned parallel to the center line
DIAPHRAGM NUT
of the actuator, which loads the
mounting bolts in tension. This PISTON SEAL
design is not subject to bending and PISTON
shear forces; hence, withstanding UPPER SPRING
greater separation forces than other RETAINER
actuators on the market. DOWN STOP

HOUSING
CORROSION RESISTANT
SPRING
MATERIALS
All Cameron piston actuators are SNAP RING
manufactured to NACE MR0175, LOCK RING
BREATHER PLUG
in addition all non-stainless LOWER HOUSING
components are coated with Xylan PACKING RETAINER
to maximize corrosion resistance. LOWER RING

SUPERIOR PISTON DESIGN STEM

Cameron piston actuators utilize
BONNET
a single piece stainless steel snap ring
to facilitate easy cylinder removal.
The dynamic piston has a large wear
bearing that reduces any internal
metal-to-metal contact.
FLEXIBLE ACTUATOR
ORIENTATION
Connecting misaligned components
with rigid tubing can be time
consuming and can induce high stress
into the tubing connections. The MA
lower ring is threaded to the bonnet,
thus allowing rotation of the actuator
to accommodate precise alignment.

WKM
® CT-WKM-GATE-SAF-T-SEAL
04/09-ION-3M 17
 PROCESS VALVES

WKM SAF-T-SEAL API 6D THROUGH CONDUIT GATE VALVES

OPERATOR SIZING REQUIREMENTS

MODEL M, 2 in. - 4 in. (50 mm - 100 mm) ASME CLASS 150-1500

ASME Stem Thread Recommended Recommended Block- Block- Maximum Maximum Total Stem Nut
Valve Working Operating Operating &-Bleed &-Bleed Allowable Allowable Stem Turns to
Size ASME Pressure Size Pitch Lead Thrust Torque Thrust Torque Thrust Torque Travel Open
in. (mm) Class (psig) in. in. in. (lbf) (ft-lbf) (lbf) (ft-lbf) (lbf) (ft-lbf) in. (mm) Valve
2 (50) 150 290 0.875 0.167 0.167 457 3 535 4 12597 93 2.63 (67) 15.8
2 (50) 300 750 0.875 0.167 0.167 1183 9 1383 10 12597 93 2.63 (67) 15.8
2 (50) 600 1500 0.875 0.167 0.167 2366 17 2766 20 12597 93 2.63 (67) 15.8
2 (50) 900 2250 0.875 0.167 0.167 3549 26 4149 30 12597 93 2.63 (67) 15.8
2 (50) 1500 3750 0.875 0.167 0.167 5914 43 6915 51 12597 93 2.63 (67) 15.8
3 (80) 150 290 1.000 0.200 0.200 803 7 1115 9 16027 136 4.03 (102) 20.2
3 (80) 300 750 1.000 0.200 0.200 2078 18 2884 25 16027 136 4.03 (102) 20.2
3 (80) 600 1500 1.000 0.200 0.200 4155 35 5769 49 16027 136 4.03 (102) 20.2
3 (80) 900 2250 1.000 0.200 0.200 6233 53 8653 74 16027 136 4.03 (102) 20.2
3 (80) 1500 3750 1.000 0.200 0.200 10388 88 14422 123 16027 136 4.03 (102) 20.2
4 (100) 150 290 1.250 0.250 0.250 1327 14 1783 19 25442 271 4.88 (124) 19.5
4 (100) 300 750 1.250 0.250 0.250 3432 37 4610 49 25442 271 4.88 (124) 19.5
4 (100) 600 1500 1.250 0.250 0.250 6864 73 9221 98 25442 271 4.88 (124) 19.5
4 (100) 900 2250 1.250 0.250 0.250 10297 110 13831 147 25442 271 4.88 (124) 19.5
4 (100) 1500 3750 1.250 0.250 0.250 17161 183 23052 245 25442 271 4.88 (124) 19.5

MODEL C6B, 6 in. - 12 in. (150 mm - 300 mm) ASME CLASS 600-900

ASME Stem Thread Recommended Recommended Block- Block- Maximum Maximum Total Stem Nut
Valve Working Operating Operating &-Bleed &-Bleed Allowable Allowable Stem Turns to
Size ASME Pressure Size Pitch Lead Thrust Torque Thrust Torque Thrust Torque Travel Open
in. (mm) Class (psig) in. in. in. (lbf) (ft-lbf) (lbf) (ft-lbf) (lbf) (ft-lbf) in. (mm) Valve
6 (150) 600 1500 1.250 0.250 0.250 9839 105 14307 152 26783 283 7.25 (184) 29
6 (150) 900 2250 1.250 0.250 0.250 14758 157 21460 228 27685 335 7.25 (184) 29
8 (200) 600 1500 1.750 0.250 0.250 17099 237 21507 298 45807 557 9.25 (235) 37
8 (200) 900 2250 1.750 0.250 0.250 25649 355 32261 447 49637 604 9.25 (235) 37
10 (250) 600 1500 1.750 0.250 0.250 23859 330 29078 403 46726 569 11.25 (286) 45
10 (250) 900 2250 1.750 0.250 0.250 35789 495 43617 604 57297 697 11.25 (286) 45
12 (300) 600 1500 1.750 0.250 0.250 32032 443 41381 573 69033 840 13.31 (338) 53
12 (300) 900 2250 2.000 0.250 0.250 49816 770 62072 959 80522 1109 13.31 (338) 53

NOTE: 1. Use RECOMMENDED OPERATING THRUST AND TORQUES for sizing bevel gear operators.
2. Use BLOCK-&-BLEED THRUSTS AND TORQUES for sizing power operators (electric, gas, hydraulic, etc.).
3. MAXIMUM OPERATING THRUST AND TORQUES are the maximum allowable for the valve.

18 WKM
® CT-WKM-GATE-SAF-T-SEAL
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 PROCESS VALVES

WKM SAF-T-SEAL API 6D THROUGH CONDUIT GATE VALVES

OPERATOR SIZING REQUIREMENTS

MODEL C6, C2B, C2C, 6 in. - 36 in. (150 mm - 900 mm) ASME CLASS 150 THROUGH 900

ASME Stem Thread Recommended Recommended Maximum Maximum Block- Block- Total Stem Nut
Valve Working Operating Operating Allowable Allowable &-Bleed &-Bleed Stem Turns to
Size ASME Pressure Size Pitch Lead Thrust Torque Thrust Torque Thrust Torque Travel Open
in. (mm) Class (psig) in. in. in. (lbf) (ft-lbf) (lbf) (ft-lbf) (lbf) (ft-lbf) in. (mm) Valve
6 (150) 150 290 1.250 0.250 0.250 1902 18 31785 307 2762 27 7.25 (184) 29
6 (150) 300 750 1.250 0.250 0.250 4919 47 31785 307 7143 69 7.25 (184) 29
6 (150) 600 1500 1.250 0.250 0.250 9836 95 31785 307 14285 138 7.25 (184) 29
6 (150) 900 2250 1.250 0.250 0.250 14757 142 31785 307 21428 207 7.25 (184) 29
8 (200) 150 290 1.500 0.250 0.250 3106 34 52036 574 4153 46 9.25 (235) 37
8 (200) 300 750 1.500 0.250 0.250 8033 89 52036 574 10740 119 9.25 (235) 37
8 (200) 600 1500 1.500 0.250 0.250 16067 177 52036 574 21481 237 9.25 (235) 37
8 (200) 900 2250 1.500 0.250 0.250 24100 266 52036 574 32221 356 9.25 (235) 37
10 (250) 150 290 1.500 0.250 0.250 4413 49 52036 574 5817 64 11.25 (286) 45
10 (250) 300 750 1.500 0.250 0.250 11413 126 52036 574 15045 168 11.25 (286) 45
10 (250) 600 1500 1.500 0.250 0.250 22828 252 52036 574 30090 332 11.25 (286) 45
10 (250) 900 2250 1.500 0.250 0.250 34239 378 52036 574 45135 498 11.25 (286) 45
12 (300) 150 290 1.500 0.250 0.250 5993 66 52036 574 7755 86 13.25 (337) 53
12 (300) 300 750 1.500 0.250 0.250 15500 171 52036 574 20056 221 13.25 (337) 53
12 (300) 600 1500 1.500 0.250 0.250 30999 342 52036 574 40113 443 13.25 (337) 53
12 (300) 900 2250 1.750 0.250 0.250 48045 597 77223 960 60169 748 13.25 (337) 53
14 (350) 150 290 1.500 0.200 0.400 7149 95 54521 722 9063 120 14.69 (373) 36.73
14 (350) 300 750 2.000 0.250 0.500 19594 338 101611 1754 23439 405 14.69 (373) 29.38
14 (350) 600 1500 2.000 0.250 0.500 39187 676 101611 1754 46878 809 14.69 (373) 29.38
14 (350) 900 2250 2.250 0.250 0.500 60540 1129 135875 2533 70547 1315 14.69 (373) 29.38
16 (400) 150 290 1.500 0.200 0.400 9178 122 54521 722 11439 152 16.69 (424) 41.73
16 (400) 300 750 1.500 0.200 0.400 23735 314 54521 722 29584 392 16.69 (424) 41.73
16 (400) 600 1500 2.000 0.250 0.500 49680 857 101611 1754 59168 1021 16.69 (424) 33.38
16 (400) 900 2250 2.750 0.400 0.800 81146 2040 180794 4546 88752 2232 16.69 (424) 20.86
18 (450) 150 290 1.500 0.200 0.400 11594 154 54521 722 13974 185 18.44 (468) 46.10
18 (450) 300 750 1.750 0.250 0.500 30500 484 72304 1148 36139 574 18.69 (475) 37.38
18 (450) 600 1500 2.250 0.250 0.500 63504 1184 135875 2533 72278 1347 18.69 (475) 37.38
18 (450) 900 2250 2.750 0.400 0.800 99884 2512 180794 4546 108418 2726 18.69 (475) 23.36
20 (500) 150 290 1.750 0.250 0.500 14381 228 72304 1148 17245 274 20.75 (527) 41.50
20 (500) 300 750 2.000 0.250 0.500 37782 652 101611 1754 44600 770 20.75 (527) 41.50
20 (500) 600 1500 2.750 0.400 0.800 79982 2011 180794 4546 89200 2243 20.75 (527) 25.94
20 (500) 900 2250 3.000 0.400 0.800 122624 3252 225696 5986 133801 3549 20.75 (527) 25.94
22 (550) 150 290 1.750 0.250 0.500 17243 274 72304 1148 21470 341 22.94 (583) 45.88
22 (550) 300 750 2.250 0.250 0.500 45845 855 135875 2533 55526 1035 22.94 (583) 45.88
22 (550) 600 1500 3.000 0.400 0.800 96549 2561 225696 5986 111051 2945 22.94 (583) 28.68
24 (600) 150 290 2.000 0.250 0.500 20605 356 101611 1754 26366 455 25.13 (638) 50.26
24 (600) 300 750 2.250 0.250 0.500 53952 1006 135875 2533 68188 1271 25.13 (638) 50.26
24 (600) 600 1500 3.250 0.400 0.800 114677 3200 275560 7689 138375 3806 25.13 (638) 31.41
24 (600) 900 2250 3.750 0.400 0.800 178422 5474 390393 11977 204563 6276 25.13 (638) 31.41
30 (750) 150 290 2.250 0.250 0.500 31396 585 135875 2533 42018 783 31.25 (794) 62.50
30 (750) 300 750 3.000 0.400 0.800 83626 2218 225698 5986 108866 2882 31.25 (794) 39.06
30 (750) 600 1500 3.750 0.400 0.800 173437 5321 390393 11877 217333 6668 31.25 (794) 39.06
36 (900) 150 290 2.750 0.400 0.800 44184 1111 180794 4546 57303 1441 36.88 (937) 46.10
36 (900) 300 750 3.250 0.400 0.800 116110 3240 275560 7889 148199 4135 36.88 (937) 46.10
36 (900) 600 1500 4.250 0.400 0.800 241350 8075 525088 17568 296397 9317 36.88 (937) 46.10

NOTE: 1. Use RECOMMENDED OPERATING THRUST and TORQUES for sizing bevel gear operators.
2. Use BLOCK-&-BLEED THRUSTS and TORQUES for sizing power operators (electric, gas, hydraulic, etc.).
3. MAXIMUM OPERATING THRUST and TORQUES are the maximum allowable for the valve.

WKM
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WKM SAF-T-SEAL API 6D THROUGH CONDUIT GATE VALVES

TOPWORKS

2" - 0.875"-6NA-2G LH
3" - 1.000"-5NA-2G LH
4" - 1.25"-4NA-2G LH
G Ø
C

Ø D ± .005

1/4"-18 NPT

F
Ø4.25
Ø J 4 HOLES B E
A

MODEL M
Size ASME Open Closed
in. Class A B C D E F G H J
2 600/1500 9.25 6.56 6.44 2.808 0.63 0.120 5.00 4.00 4
3 150/1500 12.00 7.97 7.75 2.808 0.63 0.120 5.00 4.00 4
4 150/600 15.00 10.12 9.95 3.308 0.625 0.120 5.25 4.25 4
4 900/1500 13.63 8.75 9.95 3.308 1.00 0.120 6.00 5.00 4

Size ASME Open Closed

mm Class A B C D E F G H J
50 600/1500 235 167 164 71 16 3.048 127 102 4
80 150/1500 305 202 197 71 16 3.048 127 102 4
100 150/600 381 257 253 84 15.875 3.048 133 108 4
100 900/1500 346 222 253 84 25.4 3.048 152 127 4

20 WKM
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WKM SAF-T-SEAL API 6D THROUGH CONDUIT GATE VALVES

TOPWORKS

C
TOP OF STEM OPEN
TO CENTERLINE OF VALVE BORE

D B G
TOTAL TOP OF STEM
STEM TRAVEL CLOSED N

1/4"-18 NPT

H Ø J Ø L Ø M Ø

F K = NUMBER &
SIZE OF HOLES
MINIMUM FULL THD.

E
END OF STEM THD. DIA

MODEL C6
Size ISO A -NA-2G-L.H. Closed Open
in. Series FLG Single Lead Thd. B C D E F G H J K L M N P
6 150/3C F14 1 1/4 - .250P - .250L 8.50 15.75 7.25 16.83 16.31 27.38 6.88 5.50 4 - 0.658 3.942 2.62 1.00 0.169
3.952 0.183
8 150/3C F14 1 1/2 - .250P - .250L 10.19 19.44 9.25 20.58 20.06 35.44 6.88 5.50 4 - 0.688 3.942 2.62 1.00 0.169
3.952 0.183
10 150/3C F14 1 1/2 - .250P - .250L 8.19 19.44 11.25 20.58 20.06 38.50 6.88 5.50 4 - 0.688 3.942 2.62 1.00 0.169
3.952 0.183
12 150/3C F14 1 1/2 - .250P - .250L 9.69 23.00 13.31 24.20 23.69 44.00 6.88 5.50 4 - 0.688 3.942 2.62 1.00 0.169
3.952 0.183

Size ISO A -NA-2G-L.H. Closed Open

mm Series FLG Single Lead Thd. B C D E F G H J K L M N P
150 150/3C F14 31.75 - .250P - .250L 216 400 184 427 414 695 175 140 4 - 16.71 100.13 66.55 25.4 4.293
100.38 4.648
200 150/3C F14 38.1 - .250P - .250L 259 494 235 523 510 900 175 140 4 - 17.48 100.13 66.55 25.4 4.293
100.38 4.648
250 150/3C F14 38.1 - .250P - .250L 208 494 286 523 510 978 175 140 4 - 17.48 100.13 66.55 25.4 4.293
100.38 4.648
300 150/3C F14 38.1 - .250P - .250L 246 584 338 615 602 1118 175 140 4 - 17.48 100.13 66.55 25.4 4.293
100.38 4.648

WKM
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 PROCESS VALVES

WKM SAF-T-SEAL API 6D THROUGH CONDUIT GATE VALVES

TOPWORKS

C
TOP OF STEM OPEN
TO CENTERLINE OF VALVE BORE

D B G
TOTAL TOP OF STEM
STEM TRAVEL CLOSED
N
P

1/4"-18 NPT

H Ø J Ø L Ø M Ø

K = NUMBER &
F SIZE OF HOLES
MINIMUM FULL THD.

E
END OF STEM THD. DIA

MODEL C6B
Size ISO ACME STEM Closed Open
in. Class FLG A B C D E F G H J K L M N P
6 600/900 F14 1 1/4 - .250P - .250L 7.83 10.02 7.19 18.69 16.25 28.06 6.89 5.512 4 - 0.688 3.945 2.50 1.03 0.168
3.955 0.188
8 600/900 F16 1 3/4 - .250P - .250L 10.17 19.37 9.20 20.44 20.00 35.41 8.27 6.496 4 - 0.812 5.240 2.50 1.50 0.220
5.260 0.240
10 600/6C F16 1 3/4 - .250P - .250L 8.17 19.37 11.20 20.44 20.00 38.47 8.27 6.496 4 - 0.812 5.240 2.50 1.50 0.220
5.260 0.240
12 600 F16 1 3/4 - .250P - .250L 9.61 22.83 13.22 24.06 23.62 43.91 8.27 6.496 4 - 0.812 5.240 2.50 1.50 0.220
5.260 0.240
12 900 F16 2 - .250P - .250L 9.55 22.67 13.12 24.06 23.62 44.47 8.27 6.496 4 - 0.812 5.240 3.25 1.50 0.220
5.260 0.240

Size ISO ACME STEM Closed Open

mm Series FLG A B C D E F G H J K L M N P
150 150/9C F14 31.75 - .250P - .250L 199 255 183 475 413 713 175 140 4 - 17.48 100.20 63.5 26.16 4.267
100.46 4.775
200 150/9C F14 44.45 - .250P - .250L 258 492 234 519 508 899 210 165 4 - 20.62 133.10 63.5 38.10 5.588
133.60 6.096
250 150/6C F14 44.45 - .250P - .250L 208 492 284 519 508 977 210 165 4 - 20.62 133.10 63.5 38.10 5.588
133.60 6.096
300 4/6C F16 44.45 - .250P - .250L 244 580 336 611 600 1115 210 165 4 - 20.62 133.10 63.5 38.10 5.588
133.60 6.096
300 9C F16 50.8 - .250P - .250L 243 576 333 611 600 1130 210 165 4 - 20.62 133.10 82.6 38.10 5.588
133.60 6.096

22 WKM
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WKM SAF-T-SEAL API 6D THROUGH CONDUIT GATE VALVES

FLOW COEFFICIENTS (CV)

The following chart outlines the CV for through conduit gate valves having end-to-end dimensions
and bore diameters in compliance with API 6D.
CV is the flow of water through the valve at 1 psi pressure drop in gallons per minute.
Since CV is a calculated number, the actual value may vary.

Valve Size in. 150 300 400 600 900 1500 2500
2 476 432 378 378 337 337 218
3x2 - - 165 165 203 239 -
2 1/2 - - 682 682 558 558 305
3 1358 1155 1053 1109 1072 966 474
4x3 - - 534 529 597 677 624
4 2508 2176 1925 1944 1890 1730 725
6x4 - - 886 944 943 1231 -
6 5402 5300 4860 4577 4383 3622 2510
8x6 2583 2499 - 3240 3588 2137 -
8 11261 11054 9345 8886 8416 6879 5227
10 x 8 - 5218 - 5036 7975 4859 -
12 x 8 - 3302 - 3892 - - -
10 19181 18856 15771 14533 14087 11283 8313
12 29435 28980 23834 22729 21025 16843 12282
12 x 10 7875 - - 12799 7299 - -
14 35605 30883 29921 28837 23846 20336 -
16 x 14 - - - 21096 - - -
16 49979 42224 41022 39144 33358 27548 21396
20 x 16 13060 - 15761 - - - -
18 66156 55740 54277 51368 45004 - -
20 83865 70386 68680 64559 56871 - -
22 - 86869 85422 80279 - - -
24 127916 106835 103504 97240 84836 - -
26 149428 123222 120829 114905 - - -
28 176798 144355 142391 135267 - - -
30 212313 170229 163776 157401 133706 - -
36 322548 245362 236147 224424 - - -

WKM
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WKM SAF-T-SEAL API 6D THROUGH CONDUIT GATE VALVES

FLOW COEFFICIENTS (KV)

The following chart outlines the KV for through conduit gate valves having end-to-end dimensions
and bore diameters in compliance with API 6D.
KV is the flow of water through the valve at 1 BAR pressure drop in cubic meters per hour.
Since KV is a calculated number, the actual value may vary.

Valve Size in. 150 300 400 600 900 1500 2500
2 412 373 327 327 291 291 188
3x2 - - 142 142 175 207 -
2 1/2 - - 590 590 483 483 264
3 1175 999 911 959 927 835 410
4x3 - - 462 458 516 585 540
4 2170 1882 1665 1682 1635 1496 627
6x4 - - 766 817 816 1065 -
6 4673 4585 4204 3959 3792 3133 2172
8x6 2234 2162 - 2803 3103 1849 -
8 9742 9562 8084 7687 7280 5951 4522
10 x 8 - 4514 - 4356 6898 4204 -
12 x 8 - 2857 - 3367 - - -
10 16592 16312 13643 12572 12186 9761 7191
12 25463 25070 20617 19662 18188 14570 10624
12 x 10 6812 - - 11072 6314 - -
14 30800 26715 25883 24945 20628 17591 -
16 x 14 - - - 18249 - - -
16 43234 36526 35486 33862 28856 23831 18509
20 x 16 11298 - 13634 - - - -
18 57228 48218 46953 44436 38930 - -
20 72547 60888 59412 55847 49196 - -
22 - 75147 73894 69445 - - -
24 110654 92417 89536 84117 73388 - -
26 129263 106593 104523 99399 - - -
28 152939 124874 123175 117013 - - -
30 183661 147257 141674 136160 115662 - -
36 279021 212251 204279 194138 - - -

24 WKM
® CT-WKM-GATE-SAF-T-SEAL
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WKM SAF-T-SEAL API 6D THROUGH CONDUIT GATE VALVES

PARTIAL OPEN FLOW CHARACTERISTICS

The following graph approximates Flow Coefficient (CV or KV) of gate valves as a function of the valve
stroke going from CLOSED to OPEN. Note that this is an estimation only because of assumptions made
in the valve stroke as well as unpredictable flow characteristics around the gate-seat bore in the
partially open position.
Gate valves are intended for on-off service. Intermittent throttling such as pressure equalization service
is acceptable. Continuous throttling is not recommended. This information is provided only to facilitate
the engineering of systems in the transition between open and closed positions of the valves.
One example might be to evaluate the possibility of water hammer in liquid pipelines.

PARTIAL OPEN FLOW CHARACTERISTICS

(THROUGH CONDUIT GATE VALVES)

120%

100%

80%

% OF TOTAL
FLOW AREA
60%

% OF CV

40%

20%

0%
10% 20% 30% 40% 50% 60% 70% 80% 90% 100%

PERCENT OF VALVE STROKE

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WKM SAF-T-SEAL API 6D THROUGH CONDUIT GATE VALVES

COMMON TRIMS

T-10 WATERFLOOD (UNINHIBITED)

Carbon steel body/bonnet with wetted surface, ENP plated, internal parts of corrosive resistant materials.
Temperature ratings: -20°F to +250°F (-29°C to +121°C).

T-11 MODEL M - 2 in., 3 in. and 4 in. (50 mm, 80 mm and 100 mm)
ASME CLASS 600 - 1500 STANDARD TRIM
For non-corrosive aromatic service with concentration of MTBE to 100 percent.
Temperature ratings: -20°F to +250°F (-29°C to +121°C).

T-22 CORROSIVE SERVICE - INTERNAL PARTS

For substantially the same service as T-21 but where the corrosion resistance of internal parts is desirable.
The valve internal sealing members are stainless steel to gain this corrosion resistance. This trim is also usable
for mildly corrosive fluids and gases when limited corrosion of the internal body surfaces can be tolerated.
Temperature ratings: -20°F to +250°F (-29°C to +121°C).

T-24 SOUR GAS AND OIL (NACE MR0175)

Primarily for sour gas and oil (NACE MR0175) where resistance to hydrogen sulfide embrittlement is required.
Also suitable for other chemicals, products or hydrocarbons when H2S is present. May be used when CO2 is
present is smaller amounts than H2S.
Temperature ratings: -20°F to +250°F (-29°C to +121°C).

T-36 LOW TEMPERATURE - 50°F (-46°C) NACE

For essentially non-corrosive ladings, either liquid or gaseous. The pressure retaining components (body,
bonnet and bolting) are of impact tested materials.
Temperature ratings: -50°F to +250°F (-46°C to +121°C).

T-37 LOW TEMPERATURE SOUR -50°F (-46°C) NACE

Primarily for sour gas and oil (NACE MR0175) where resistance to hydrogen sulfide embrittlement is required
at -50°F (-46°C) service. The pressure retaining components (body, bonnet and bolting) are of impact tested
materials. Also suitable for other chemicals, products or hydrocarbons when H2S is present. May be used when
CO2 is present is smaller amounts than H2S.
Temperature ratings: -50°F to +250°F (-46°C to +121°C).

T-94 FIRE TESTED TO API 6FA

These valves have been qualified as fire tested and contains a special stem packing arrangement. For essentially
non-corrosive ladings. The elastomer O-rings used for seal and bonnet seals are of a material that will not tend to
swell and affect the operation of the valve. Typical examples of ladings are: gasoline, benzene, toluene, carbon-
tetrachloride, 1,1, 1 trichloroethane, Trichloroethylene perchloroethylene and phosphate ester hydraulic fluids.
Temperature ratings: -20°F to +350°F (-29°C to t 177°C).

T-102 HIGH AROMATIC (TO 100% MTBE)

6 in. - 24 in. (150 mm - 600 mm) ASME CLASS 300 - 900
For non-corrosive aromatic service with concentration of MTBE to 100 percent.
Temperature ratings: -20°F to +250°F (-29°C to +121°C).
Other Trims Available on Request.

26 WKM
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WKM SAF-T-SEAL API 6D THROUGH CONDUIT GATE VALVES

TRIM CHART

Trim Body & Stem

Service Code Bonnet Gate Seat Seal Stem Bolting Fittings
Waterflood, T-10 WCC Carbon Steel 300- Carbon Steel, PTFE Low Alloy Alloy Stainless
Corrosive Carbon Steel, 600, Low Alloy Nickel Plated Steel, Nickel Steel Steel
-20°F to 250°F Nickel 900 PTFE Insert Plated NACE
-29°C to 121°C Plated Nickel Plated
Standard T-11 WCC Carbon Steel, Carbon Steel, FKM Low Alloy Alloy Carbon
-20°F to 250°F 2 - 4 in. Carbon Low Alloy Steel, Nickel Plated Viton Steel, Nickel Steel Steel
-29°C to 121°C only Steel Nickel Plated PTFE Insert Plated
Corrosive T-22 WCC 410 410 PTFE 17-4 PH Alloy Stainless
Service Carbon Stainless Stainless Stainless Steel Steel
-20°F to 250°F Steel Steel Steel Steel
-29°C to 121°C
Sour, Mildly T-24 WCC Carbon Steel 300- Carbon Steel, PTFE Low Alloy Alloy Stainless
Corrosive 2 in. & Carbon 600, Low Alloy Nickel Plated Steel, Nickel Steel Steel
-20°F to 250°F larger Steel 900 PTFE Insert Plated NACE
-29°C to 121°C Nickel Plated
Low T-36 LCC Nickel Plated Carbon Steel, PTFE Low Alloy Alloy Stainless
Temperature, Carbon Carbon Steel Nickel Plated Steel, Steel, Steel
Non-Sour Steel 300-600 Class PTFE Insert Impact Impact
-50°F to 250°F Impact Low Alloy Steel Nickel Tested
-46°C to 121°C Tested 900 Class Plated
Low T-37 LCC Nickel Plated Carbon Steel, PTFE Low Alloy Alloy Stainless
Temperature, Carbon Carbon Steel Nickel Plated Steel, Steel, Steel
Sour Steel 300-600 Class PTFE Insert Impact NACE,
-50°F to 250°F Impact Low Alloy Steel Nickel Impact
-46°C to 121°C Tested 900 Class Plated Tested
Standard T-94 WCC Carbon Steel 300- Carbon Steel, Special Low Alloy Alloy Carbon
-20°F to 350°F Carbon 600, Low Alloy Nickel Plated Steel, Nickel Steel Steel
-29°C to 177°C Steel 900 Nickel Plated PTFE Insert Plated
Standard T-102 WCC Carbon Steel 300- Carbon Steel, PTFE Low Alloy Alloy Carbon
-20°F to 250°F 6 in. & Carbon 600, Low Alloy Nickel Plated Steel, Nickel Steel Steel
-29°C to 121°C larger Steel 900 Nickel Plated PTFE Insert Plated

WKM
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 PROCESS VALVES

TRADEMARK INFORMATION

WKM® is a registered trademark which is owned by Cameron.

This document contains references to registered trademarks or product designations,

which are not owned by Cameron.
Trademark Owner
Inconel INCO Nickel Sales, Inc.
Monel INCO Alloys International, Inc.
Stellite Stoody Deloro Stellite, Inc.
Teflon E.I. DuPont De Nemours & Company
Viton E.I. DuPont De Nemours & Company

28 WKM
® CT-WKM-GATE-SAF-T-SEAL
04/09-ION-3M
PROCESS VALVES
 PROCESS VALVES

VALVES & MEASUREMENT

3250 Briarpark Drive, Suite 300
Houston, Texas 77042
USA Toll Free 800 323 9160

For the most current contact and location information go to: www.c-a-m.com/valvesandmeasurement

Printed in Canada 04/09-ION-3M Rev. 0 04/09 CT-WKM-GATE-SAF-T-SEAL