Wkm Saf T Seal Gate Valves

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WKM Saf-T-Seal Gate Valves
Through-conduit, double block-and-bleed slab gate valves with fully protected
seat faces for long-lasting, drop-tight shutoff in liquid pipelines

Table of Contents

WKM SAF-T-SEAL GATE VALVES
Introduction...........................................................................................

3

Design...................................................................................................

4

Features.................................................................................................

5

Options..................................................................................................

6

C6, C2B and C2C Models
Automatic Relief of Excess Body Pressure...............................................

7

C6B Model
Automatic Relief of Excess Body Pressure...............................................

8

Single Spring-Loaded (SLS) Seal..............................................................

9

2” to 4” (50 mm to 100 mm) Classes 600, 900 and 1500
Model M (Handwheel Operated)............................................................ 10
6” to 12” (150 mm to 300 mm) Classes 150, 300, 600, and 900
Models C6 and C6B (Handwheel and Bevel Gear Operated)................... 11
14” to 36” (350 mm to 900 mm) Classes 150 and 300
Models C6B and C2B (Bevel Gear Operated).......................................... 12
14” to 36” (350 mm to 900 mm) Classes 600 and 900
Models C68 and C6B (Handwheel and Bevel Gear Operated)................. 13
WKM Saf-T-Gard Actuators.................................................................... 14
Pneumatic Diaphragm Actuator............................................................. 15
Pneumatic Piston Actuator..................................................................... 19

1

Table of Contents

Operating Size Requirements................................................................. 20
Topworks Model M................................................................................ 22
Topworks Model C6............................................................................... 23
Topworks Model C6B............................................................................. 24
Flow Coefficients (Cv)............................................................................. 26
Flow Coefficients (Kv)............................................................................. 27
Trim Chart............................................................................................. 28
Common Trims...................................................................................... 29
Partial Open Flow Characteristics........................................................... 30
CAMSERV Aftermarket Services for Valves and Actuation....................... 31
Trademark Information.......................................................................... 32

2

WKM Saf-T-Seal Gate Valves

Ville Platte, La.,
USA

Cameron is a leading provider of valves and measurement systems to the oil and gas industry.
Our products are primarily used to control, direct and measure the flow of oil and gas as it is
moved from individual wellheads through flowlines, gathering lines and transmission systems
to refineries, petrochemical plants and industrial centers for processing.
Cameron provides a wide range of valves for use in natural gas, LNG, crude oil and refined
products transmission lines. The traditional CAMERON® fully welded ball valve product line
has been combined with the GROVE®, RING-O®, TOM WHEATLEY®, ENTECH™ and TK®
product lines. This broad offering has strengthened Cameron’s ability to serve as a single
source for customer requirements. Cameron also provides critical service valves for refinery,
chemical and petrochemical processing businesses, and for associated storage terminal
applications, particularly through the ORBIT® and GENERAL VALVE® lines. These brands are
complemented by WKM®, TBV™ and TEXSTEAM™ valve products and considerably expand
the scope of our product offerings.
Cameron’s WKM Saf-T-Seal™ gate valve’s smooth continuous bore reduces turbulence.
Additionally, the seat faces are outside the flow stream and are protected from contact with
the lading whether the valve is in the open or closed position. The WKM Saf-T-Seal gate
valve’s full 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 cuttings.

3

DESIGN
Cameron’s WKM Saf-T-Seal valve’s through-conduit design provides the following
specific advantages that result 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 open and closed
positions, greatly extending the
seat life.

Smooth, Continuous
Conduit for Flow
•	Destructive turbulence is reduced.
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
•	In the closed position, the valve
forms a tight seal on both seats
simultaneously. This allows the
body cavity to be bled.

The single spring-loaded (SLS) lip seal
is self-adjusting and does not depend
on plastic packing

Blowout-proof stem with backseat

Metal wave spring to ensure
a bubble-tight seal

Full-bore, through-conduit
design reduces turbulence

Commonly Used Applications
•	Mainline and manifold valves in liquids pipelines
• Storage wells (salt domes, etc.)
• Water flood
•	Safety valves (emergency shutdown valves (ESDVs)
pipelines, wellheads and salt domes

4

FEATURES
1. Through-Conduit Slab Gate Valve
•

Provides a tight pressure-activated seal

•

Full-bore design reduces pressure drop and allows passage of all types of scrapers (pigs)

•

Nickel-plated internals

2. Cameron’s SLS Stem Seal System or Vee Packing with Injectable Plastic Packing
3. Double-Sealing, Replaceable, Floating Seats
•

Block-and-bleed per API 6D

•

Simple one-piece design is resistant to dirty service

•

Insert initiates the seal and helps clean the gate

•

Excess body pressure is automatically vented upstream

•	Seats may be lubricated to promote long life, reduce operating torques, or effect a seal in an
emergency situation
•

Easily removed and replaced while the valve is in-line

•	Double seal established by initial plastic-to-metal seal in addition to metal-to-metal seal, both
upstream and downstream

4. Bolted Bonnet Valve is In-Line Repairable
•	Seal is made by an O-ring or flat metal gasket for standard applications (spiral-wound metal gasket
with a non-asbestos filler for high-temperature applications)

5. Singe-Piece Cast Body Center Section
• Provides the necessary strength to resist pipeline bending moments
• Smooth shape reduces stress concentrations
• Made from pressure vessel quality steel

6. Valve Stroke is Established by Manufacturing Tolerances
• Cannot get out of adjustment

7. Upgrades
• Stem backseat with test port
• SLS stem seal contained entirely in the bonnet, reducing a potential leak path
• Seat with wave spring to seal on low-pressure air
• Complies to API 6D and B16.34

5

OPTIONS
•

Position indicator rods standard on handwheel- and bevel gear-operated valves

•

Handwheel operators, bevel gear operators, or less gearing (bare stem)

•

Saf-T-Gard hydraulic actuators or piston or diaphragm pneumatic actuators for surface safety applications

•

Lubrication/packing/drain extensions

•

Stem/yoke tube extensions

•	Variety of coatings (coal tar epoxy for buried service, two- to three-part coating systems for marine environments,
inorganic zinc-rich epoxy, etc.)
•	Retrofits available for stem and body fitting extensions on buried service or difficult-to-reach valves,
6” (150 mm) increments
•

HF-6 overlay available for gate and seal sealing surfaces

WKM Saf-T-Seal valves have a legacy of solid, innovative solutions around the globe.

6

C6, C2B and C2C Models
AUTOMATIC RELIEF OF EXCESS BODY PRESSURE

1. When the gate is in the closed position and there is an
equal pressure through the valve, an initial seal (1) is
formed by the raised plastic ring on the faces of the
seats. The seat inserts clean both sides of the gate
each time the valve is opened or closed.

2. As line pressure (2) is applied to the valve, it acts on
the gate, forcing it against the plastic ring on the
downstream seat and compressing it until the gate
rests against the steel seat. Thus, a double seal is
formed; first, a plastic-to-metal seal then metal-to-metal.
The seal also is forced firmly into its recess. The O-ring
(3) prevents any downstream flow around the seat.

3. An upstream seal is provided by the force of line
pressure acting against the upstream seat (4),
moving the seat against the gate and providing
a tight plastic-to-metal seal. At the same time,
the O-ring (5) forms a tight seal with the seat recess.

4. The valve automatically relieves itself of excessive body
pressure. When body pressure exceeds line pressure,
from causes such as thermal expansion, the upstream
seat is forced back into its recess and the excess
pressure in the body is bled between the seat and the
gate into the line.

Seat face groove

Emergency Sealant Injection

O-ring

Peripheral
groove and
sealant
injection
port

Plastic
insert

In valves 6” (150 mm) and larger, the sealant can be
pumped through body fittings directly into a groove
on the face of the seat. In smaller valves, the sealant
is injected through fittings into the valve body.

Repacking Under Pressure
The WKM Saf-T-Seal gate valve is equipped with Cameron‘s
SLS stem packing in an enclosed packing box. Plastic packing
is not required. Plastic stem packing can be added while
the valve is under pressure in case of an emergency.
7

C6B Model
AUTOMATIC RELIEF OF EXCESS BODY PRESSURE

1. W
 hen the gate is in the closed position and there is an
equal pressure through the valve, an initial seal (1) is
formed by the raised plastic ring on the faces of the
seats. The seat inserts clean both sides of the gate
each time the valve is opened or closed.

2. As line pressure (2) is applied to the valve, it acts on
the gate, forcing it against the plastic ring on the
downstream seat and compressing it until the gate
rests against the steel seat. Thus, a double seal is
formed; 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 around the seat.

3. A
 n upstream seal is provided by the force of line
pressure acting against the upstream seat (4),
moving the seat against the gate and providing a
tight plastic-to-metal seal. At the same time, the
O-ring (5) forms a tight seal with the seat recess.

4. The valve automatically relieves itself of excessive body
pressure. When body pressure exceeds line pressure
from causes such as thermal expansion, the upstream
seat is forced back into its recess and the excess
pressure in the body is bled between the seat and the
gate into the line.

Seat face groove

Emergency Sealant Injection

O-ring
Peripheral
groove and
sealant
injection
port

Plastic
insert

8

In valves 6” (150 mm) and larger, the sealant can be
pumped through body fittings directly into a groove
on the face of the seat. In smaller valves, the sealant
is injected through fittings into the valve body.

Repacking Under Pressure
The WKM Saf-T-Seal gate valve is equipped with Cameron‘s
SLS stem packing in an enclosed packing box. Plastic packing
is not required. Plastic stem packing can be added while
the valve is under pressure in case of an emergency.

Single Spring-Loaded (SLS) Seal
FEATURES AND BENEFITS
The SLS stem seal system is designed to provide
optimum performance while requiring reduced
maintenance. This seal is hydrocarbon fugitive
emissions-tested and has demonstrated seal ability
up to 500 ppm leakage.

Testing and Certifications
•

Fire tests per API 6FA, BS 6755 Part 11

•

ISO 10497

Design
•

Single spring-loaded lip seal

•

Lantern ring

•

Chevron ring(s)

•

Lower pedestal

•

Upper adapter

Features
•

Self-adjusting seal designed to reduce maintenance

•

No plastic packing required to establish an effective seal*

•

Four separate sealing bands to promote reliability

•	Filled PTFE shell backed with a corrosion-resistant alloy
spring (making it suitable for virtually all line media)
•	Metal spring provides an initial seal and uniform loading
over a wide temperature range
•	Lantern ring acts as a spacer in conjunction with the upper
adapter as a bearing to center the stem
•	Lower pedestal support seal acts as a stem scraper to keep
contaminants away from sealing members
•	Chevron ring(s) act as an emergency seal, should it be
necessary to inject plastic packing, and keeps foreign
matter away from the seal

Model C6B Details
Metal upper adapter
centers the stem
Metal lantern ring
centers the stem
and acts as a spacer
Pedestal supports
the SLS stem seal
and acts as a wiper
to keep contaminants
away from the seals

Chevron vee ring(s)
act as a wiper and
provide a seal, should
it be necessary to
inject plastic packing
SLS seal is
hydrocarbon fugitive
emissions-tested,
compatible with
most media and
ladings, and is
fire-tested to API 6FA

Packing injection port

Stem backseat port
Stem backseat

Seat wave spring

Standard on C6B model. Can be retrofitted or requested for C6, C2B and C2C models.
* Plastic packing can be injected into packing box to affect a temporary seal while the valve is under pressure.

9

2” to 4” (50 mm to 100 mm) Classes 600, 900 and 1500
MODEL M (HANDWHEEL OPERATED)
H

Max. WP at 100˚ F (38˚ C)
Class 600:

1500 psi CWP
2250 psi Test

Class 900:

2250 psi CWP
3375 psi Test

Class 1500:

3750 psi CWP
5625 psi Test

G

PRINCIPAL DIMENSIONS
N = Number of turns to fully open or close valve
SN = Stem nut
BGO = Bevel gear operator
B

F

A

Class 600
*

Size in.
(mm)

A

B

F

G

H

2
(50)

11-1/2
(292)

2-1/16
(52)

4-13/16
(122)

17-3/4
(451)

3
(80)

14
(356)

3-3/16
(81)

6-15/16
(176)

4
(100)

17
(432)

4-1/8
(105)

Weight lb (kg)
N

FE

WE

FxW

12
(305)

15-3/4

90
(41)

72
(33)

84
(38)

24-3/8
(619)

12
(305)

20-1/4

180
(82)

144
(65)

155
(70)

8-5/8
(219)

29
(737)

14
(356)

19-1/2

345
(156)

259
(117)

245
(111)

150

72

105

(68)

(33)

(48)

265

193

247

(120)

(88)

(112)

Class 900
2

14-1/2

2-1/16

5-1/16

17-3/4

12

(50)

(368)

(52)

(129)

(451)

(305)

3

15

3-3/16

7-5/16

24-3/8

12

(80)

(381)

(81)

(186)

(619)

(305)

4

18

4-1/8

9-1/16

29

18

(100)

(457)

(105)

(230)

(737)

(457)

15-3/4
20-1/4
19-1/2

515

390

417

(234)

(177)

(189)

Class 1500
2

14-1/2

2-1/16

5-1/16

17-3/4

12

(50)

(368)

(52)

(129)

(451)

(305)

3

18-1/2

3-3/16

7-5/16

24-3/8

12

(80)

(470)

3(81)

(186)

(619)

(305)

4

21-1/2

4-1/8

9-1/16

29

18

(100)

(546)

(105)

(230)

(737)

(457)

* Some valves may require a gear operator to meet API 6D.

10

15-3/4
20-1/4
19-1/2

220

150

154

(100)

(68)

(70)

450

328

370

(204)

(149)

(168)

720

547

583

(327)

(248)

(264)

6” to 12” (150 mm to 300 mm) Classes 150, 300, 600 and 900
MODELS C6 AND C6B
(HANDWHEEL AND BEVEL GEAR OPERATED)

H

Max. WP at 100˚ F (38˚ C)
Class 150:

290 psi CWP
450 psi Test

Class 300:

750 psi CWP
1125 psi Test

Class 600:

1500 psi CWP
2250 psi Test

Class 900:

2250 psi CWP
3375 psi Test

G
K

PRINCIPAL DIMENSIONS

B

N = Number of turns to fully open or close valve
SN = Stem nut
BGO = Bevel gear operator

B

F

6
(150)
8
(200)
10
(250)
12
(300)

A

10-1/2
(267)
11-1/2
(292)
13
(330)
14
(356)

B

6
(152)
8
(203)
10
(254)
12
(305)

F

A

Class 150 (Model C6)
Size in.
(mm)

G

A

Handwheel Operated
F

13-1/2
(343)
16-1/2
(419)
19-1/2
(495)
22-3/4
(578)

G
(HWO)
45-3/8
(1153)
52-3/8
(1330)
59-1/2
(1511)
68-5/8
(1743)

G
(BGO)

*
H

K

46-3/8
(1178)
55-3/8
(1407)
60-1/2
(1537)
69-5/8
(1768)

24
(610)
24
(610)
24
(610)
24
(610)

30-3/4
(781)
35-7/8
(911)
40-7/8
(1038)
46-1/8
(1172)

Bevel Gear Operated

N
(SN)

N
(BGO)

29

116

37

148

45

180

53

212

29

116

37

148

45

180

53

212

N
(SN)

N
(BGO)

29

116

37

148

45

180

53

318

29

116

37

148

45

180

53

318

FE

245
(111)
365
(166)
515
(234)
677
(307)

Weight lb (kg)
WE
WXF
215
(98)
320
(145)
459
(208)
594
(269)

230
(104)
342
(155)
488
(221)
635
(288)

271
(123)
459
(208)
695
(315)
930
(422)

294
(133)
489
(222)
731
(332)
983
(446)

Class 300 (Model C6)
6
(150)
8
(200)
10
(250)
12
(300)

15-7/8
(403)
16-1/2
(419)
18
(457)
19-3/4
(502)

6
(152)
8
(203)
10
(254)
12
(305)

13-1/2
(343)
16-1/2
(419)
19-1/2
(495)
22-5/8
(578)

45-3/8
(1153)
54-3/8
(1381)
59-1/2
(1511)
68-5/8
(1743)

46-3/8
(1178)
55-3/8
(1407)
60-1/2
(1537)
69-5/8
(1768)

24
(610)
24
(610)
24
(610)
24
(610)

30-3/4
(781)
35-7/8
(911)
40-7/8
(1038)
46-1/8
(1172)

F

G
(HWO)

G
(BGO)

*
H

K

316
(143)
520
(236)
773
(351)
1035
(469)

Class 600 (Model C6B)
Size in.
(mm)
6
(150)
8
(200)
10
(250)
12
(300)

A

22
(559)
26
(660)
31
(787)
33
(838)

B

6
(152)
8
(203)
10
(254)
12
(305)

13-5/8
(346)
16-3/4
(425)
20
(508)
23-1/4
(591)

45-3/8
(1153)
56-3/8
(1432)
59-1/2
(1511)
68-7/8
(1743)

46-3/8
(1178)
57-3/8
(1457)
61-1/2
(1562)
70-1/2
(1791)

24
(610)
24
(610)
24
(610)
30
(762)

30-3/4
(781)
37-13/16
(960)
40-7/8
(1038)
47-1/4
(1200)

46-1/8
(1222)
57-1/8
(1451)
60-3/4
(1543)
73-1/8
(1857)

24
(610)
24
(610)
30
(762)
30
(762)

30-3/4
(781)
37-13/16
(960)
42-1/16
(1068)
48-1/2
(1232)

FE

600
(272)
970
(440)
1736
(787)
2374
(1077)

Weight lb (kg)
WE
WXF
439
(199)
737
(334)
1584
(718)
2010
(912)

650
(295)
853
(387)
1656
(751)
2156
(9143)

500
(227)
950
(431)
1830
(830)
2500
(1134)

575
(261)
1050
(476)
1980
(898)
2650
(1202)

Class 900 (Model C6B)
6
(150)
8
(200)
10
(250)
12
(300)

24
(610)
29
(737)
33
(838)
38
(965)

6
(152)
8
(203)
10
(254)
12
(305)

13-7/8
(352)
17-1/8
(435)
20-1/2
(521)
23-3/4
(603)

45-1/8
(1146)
56-1/8
(1426)
59-1/2
(1511)
71-3/4
(1822)

650
(295)
1200
(544)
2150
(975)
3250
(1474)

Flange dimensions conform to ASME B16.5, 1981. Information on power-actuated and other types of valves available on application.
* Some valves may require a gear operator to meet API 6D.

11

14” to 36” (350 mm to 900 mm) Classes 150 and 300
MODELS C6B AND C2B
(BEVEL GEAR OPERATED)
H

H

Max. WP at 100˚ F (38˚ C)
Class 150:

290 psi CWP
450 psi Test

Class 300:

750 psi CWP
1125 psi Test

G

G
K

K

PRINCIPAL DIMENSIONS

B

N = Number of turns to fully open or close valve
SN = Stem nut
BGO = Bevel gear operator

B

F

F

A

A

150 Class

300 Class

Class 150 (Model C6B)
Size in.
(mm)
14
(350)
16
(400)
18
(450)
20
(500)
24
(600)
26
(650)
28
(700)
30
(750)
36
(900)

A

15
(381)
16
(406)
17
(432)
18
(457)
20
(508)
22
(559)
24
(610)
26
(660)
32
(813)

B

13-1/4
(337)
15-1/4
(387)
17-1/4
(438)
19-1/4
(489)
23-1/4
(591)
25
(635)
27
(686)
29
(737)
34-1/2
(876)

F

25-1/4
(641)
28-3/8
(721)
31-3/8
(797)
34-1/2
(876)
41-1/8
(1045)
43-13/16
(1113)
46-7/8
(1191)
50
(1270)
59
(1499)

G

76
(1930)
82-7/8
(2105)
90
(2286)
98-1/4
(2496)
113
(2870)
120-1/4
(3054)
127-1/4
(3232)
136-1/4
(3461)
157
(3988)

*
H

24
(610)
24
(610)
24
(610)
24
(610)
24
(610)
24
(610)
24
(610)
24
(610)
36
(914)

K

51-3/4
(1314)
56-7/8
(1445)
62
(1575)
67-1/4
(1708)
78
(1981)
84-5/8
(2149)
90-1/8
(2289)
95-1/2
(2426)
113-3/8
(2880)

N
(SN)

N
(BGO)

36-3/4

146-7/8

41-3/4

166-7/8

46-1/16

184-3/8

41-1/2

166

50-1/4

301-1/2

-

-

57-7/8

347-1/4

62-1/2

500

46-1/8

368-3/4

FE

872
(396)
1309
(594)
1781
(808)
2351
(1066)
2892
(1312)
3521
(1597)
4098
(1859)
4916
(2230)
5842
(2650)

Weight lb (kg)
WE
WXF
760
(345)
1163
(528)
1603
(727)
2119
(961)
2514
(1140)
3172
(1439)
3506
(1590)
4231
(1919)
5264
(2388)

817
(371)
1235
(560)
1690
(767)
2235
(1014)
2703
(1226)
3327
(1509)
3802
(1725)
4573
(2074)
5521
(2504)

Flange dimensions on valves through 24” (600 mm) conform to American National Standards Institute Standard 816.5, 1974.
Larger sizes conform to MSS-SP-44.

Class 300 (Model C2B)
14
(350)
16
(400)
18
(450)
20
(500)
24
(600)
26
(650)
28
(700)
30
(750)
36
(900)

30
(762)
33
(838)
36
(914)
39
(991)
45
(1143)
49
(1245)
53
(1346)
55
(1397)
68
(1727)

13-1/4
(337)
15-1/4
(387)
17-1/4
(438)
19-1/4
(489)
23-1/4
(591)
25
(635)
27
(686)
29
(737)
34-1/2
(876)

25-1/2
(648)
28-1/8
(714)
31
(787)
34-1/2
(876)
41-1/8
(1045)
43-3/4
(1111)
47
(1194)
50-5/8
(1286)
59-1/4
(1505)

75-5/8
(1921)
80-5/8
(2048)
88
(2235)
97-3/4
(2483)
114-1/8
(2899)
120-1/4
(3054)
129-3/4
(3296)
139-1/8
(3534)
161
(4089)

24
(610)
24
(610)
24
(610)
24
(610)
24
(610)
24
(610)
24
(610)
36
(914)
36
(914)

49-1/2
(1257)
54-1/2
(1384)
60-3/4
(1543)
67
(1702)
78-3/4
(2000)
83-1/4
(2115)
90-1/4
(2292)
96-3/4
(2457)
112-3/4
(2864)

Flange dimensions conform to ASME B16.5, 1981.
Information on power-actuated and other types of valves available on application.
* Some valves may require a gear operator to meet API 6D.

12

29-3/8

117-1/2

41-3/4

166-7/8

37-3/8

224-1/4

41-1/2

249

50-1/4

402

-

-

-

-

39-1/16

312-1/2

46-1/8

368-3/4

1454
(660)
2182
(990)
2969
(1347)
3919
(1778)
5868
(2662)
6830
(3098)
8194
(3717)
9736
(4416)
15,441
(7004)

1266
(574)
1939
(880)
2672
(1212)
3532
(1602)
5287
(2398)
5844
(2651)
7051
(3198)
8773
(3979)
13,607
(6172)

1361
(617)
2058
(933)
2816
(1277)
3725
(1690)
5545
(2515)
6337
(2874)
7623
(3458)
9201
(4174)
14,524
(6588)

14” to 36” (350 mm to 900 mm) Classes 600 and 900
MODELS C6 AND C6B
(HANDWHEEL AND BEVEL GEAR OPERATED)
H

Max. WP at 100˚ F (38˚ C)
Class 600:

1500 psi CWP
2250 psi Test

Class 900:

2250 psi CWP
3375 psi Test

G

K

PRINCIPAL DIMENSIONS
N = Number of turns to fully open or close valve
SN = Stem nut
BGO = Bevel gear operator

B

F

A

Class 600 (Model C6B)
Size in.
(mm)

A

B

F

G

*
H

K

14
(350)
16
(400)
18
(450)
20
(500)
24
(600)
26
(650)
28
(700)
30
(750)
36
(900)

35
(889)
39
(991)
43
(1092)
47
(1194)
55
(1397)
57
(1448)
61
(1549)
65
(1651)
82
(2083)

13-1/4
(337)
15-1/4
(387)
17-1/4
(438)
19-1/4
(489)
23-1/4
(591)
25
(635)
27
(686)
29
(737)
34-1/2
(876)

26
(660)
29-1/8
(740)
32-3/8
(822)
35-7/8
(911)
42-1/4
(1073)
46
(1168)
49-1/4
(1251)
52-3/4
(1340)
61-3/4
(1568)

75-3/8
(1915)
83-1/2
(2121)
91-1/2
(2324)
100-1/2
(2553)
118
(2997)
124-5/8
(3165)
134
(3404)
142-3/4
(3626)
171-1/4
(4350)

24
(610)
24
(610)
24
(610)
24
(610)
36
(914)
36
(914)
36
(914)
36
(914)
36
(914)

51-1/2
(1308)
56-3/4
(1441)
62-1/2
(1588)
69-3/8
(1762)
83
(2108)
87-1/2
(2223)
93-1/2
(2375)
100-1/2
(2553)
117-1/2
(2985)

25-9/16
(649)
30-7/16
(773)
33-7/8
(860)
37-1/4
(946)
46-1/4
(1175)

79-5/8
(2022)
87-3/8
(2219)
56-15/16
(1446)
103-3/8
(2626)
123-1/8
(3127)

24
(610)
24
(610)
24
(610)
36
(914)
36
(914)

55-13/16
(1418)
60-3/16
(1529)
64-11/16
(1643)
71-1/8
(1807)
86-3/8
(2194)

N
(SN)

N
(BGO)

29-3/8

176-1/4

33-3/8

200-1/4

37-3/8

224-1/4

26

208

31-3/8

251-1/4

33-9/16

268-3/4

36-3/16

434

39-1/16

468-3/4

46-1/8

553-1/8

20-7/8

166-7/8

20-7/8

166-7/8

23-3/8

187

26

208

-

-

FE

Weight lb (kg)
WE

WXF

3232
(1466)
4023
(1825)
5617
(2548)
6984
(3168)
11,447
(5192)
13,124
(5953)
14,293
(6483)
14,457
(6558)
26,377
(11964)

2828
(1283)
3515
(1594)
4110
(1864)
6070
(2753)
10,014
(4542)
11,494
(5214)
12,232
(5548)
12,724
(5772)
23,967
(10871)

3030
(1374)
3767
(1709)
5252
(2382)
6449
(2925)
10,730
(4867)
10,024
(4547)
12,624
(5726)
13,591
(6165)
25,172
(11418)

-

-

-

Class 900 (Model C2C)
14
(350)
16
(400)
18
(450)
20
(500)
24
(600)

40-1/2
(1029)
44-1/2
(1130)
48
(1219)
52
(1321)
61
(1549)

12-3/4
(324)
15-1/4
(387)
17-1/4
(438)
19-1/4
(489)
23-1/4
(591)

Flange dimensions conform to ASME B16.5, 1981.
Information on power-actuated and other types of valves available on application.

13

WKM Saf-T-Gard Actuators
Electric and Pneumatic
Cameron’s WKM Saf-T-SealTM gate valves can be equipped with two principal types of actuators: electric actuators and
pneumatic or gas-powered motor drives.

Information Required for Sizing
Electric Actuators

Information Required for Sizing
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

•

Closing time in seconds

•	Actual working pressure at which 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 in seconds

Three-phase, 60-cycle 220 V/440 V

• Maximum differential pressure (psi)

Three-phase, 50-cycle 220 V/440 V

• Type and make of actuator required

Control voltage

• Accessories

Motor connection voltage

• Special requirements

Any special requirements
•

Enclosure:
Weather-proof
Explosion-proof, Class 1, Group D, Div. 2
ATEX
Certification required

•

Accessories:
Reversing starter
Control transformer
Push-button station:

- Three push buttons
			
Two lights
Limit switches:
- 	Two train-geared limit switches
			
(eight contacts)
			-	
Four train-geared limit switches
(16 contacts)
•

14

Special requirements

PNEUMATIC DIAPHRAGM ACTUATOR
MA 12 Series

Description

For use with 2”, 3” and 4”
(50 mm, 80 mm and 100 mm)
nominal gate valves
(Family Group Code Y55012).

Cameron’s Saf-T-Gard diaphragm actuator was developed by using the quality
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.

Design Advantages
Stronger Actuator
Mounting Arrangement
Unlike other designs, the mounting
bolts on Cameron’s actuators are
positioned parallel to the centerline
of the actuator, which loads the
mounting bolts in tension. This design
is not subject to bending or shear
forces. This means it can withstand
greater separation forces than other
actuators on the market.

Corrosion-Resistant Materials
Cameron’s Saf-T-Gard diaphragm
actuators are manufactured to NACE
MR0175. In addition, all non-stainless
components are coated with Xylan to
increase corrosion resistance.

Superior Diaphragm Design
Cameron’s diaphragm material is
stronger than most designs currently
on the market, resulting in extended
service life and higher operating
pressures. Unique sealing grooves
provide additional grip and improve
the outer seal of the diaphragm housing.

Designed for use with all manufacturers’ gate valves in nominal sizes of 2” to
6” (50 mm to 150 mm), its simple design and operating principle helps to avoid
most of the problems commonly associated with piston type actuators such as
galling, misalignment, distortion and O-ring failures.
The Saf-T-Gard diaphragm actuators are interchangeable with other models
in the product line, which reduces the amount of spare parts necessary
for maintenance.
Top shaft
Seal retainer
Rod wiper
Snap ring
Polypak seal
Wear bearing
Diaphragm nut
Diaphragm retainer plate
Pressure
relief
device

Pressure inlet
Diaphragm

Downstop
Spring
Spacer
Breather plug
Packing retainer
Lower ring
Stem packing
Stem
Metal-to-metal backseat
Bonnet

Flexible Actuator Orientation
Connecting misaligned components
with rigid tubing can be timeconsuming 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.
15

MA 16 Series
For use with 2“, 3“, 4“ and 5“
(50 mm, 80 mm, 100 mm and
125 mm) nominal gate valves
(Family Group Code Y55016).
Pressure
relief
device

Top shaft
Seal retainer
Rod wiper
Snap ring
Polypak seal
Wear bearing
Diaphragm nut
Diaphragm retainer plate
Pressure inlet
Diaphragm
Downstop
Spring
Spacer
Breather plug
Packing retainer
Lower ring
Stem packing
Stem
Metal-to-metal backseat
Bonnet

MA 20 Series
Top shaft
Seal retainer
Rod wiper
Snap ring
Polypak seal
Wear bearing
Diaphragm nut
Diaphragm retainer plate

For use with 2“, 3“, 4“, 5“ and 6“
(50 mm, 80 mm, 100 mm, 125 mm
and 150 mm) nominal gate valves
(Family Group Code Y55020).
Pressure
relief
device

Pressure inlet

Diaphragm
Downstop
Spring
Spacer
Breather plug
Packing retainer
Lower ring
Stem packing
Stem
Bonnet

16

MA 1212 Series
For use with 2”, 3” and 4”
(50 mm, 80 mm and 100 mm)
nominal gate valves
(Family Group Code Y55012).

Pressure
relief
device

Top shaft
Seal retainer
Rod wiper
Snap ring
Polypak seal
Wear bearing
Diaphragm nut
Pressure inlet
Stem extension

The MA 1212 series doubles
the area affected by applied
control pressure.

Diaphragm retainer plate
Pressure inlet
Diaphragm
Downstop
Spring
Spacer
Breather plug
Packing retainer
Lower ring
Stem packing
Stem
Metal-to-metal backseat
Bonnet

MA 2012 Series
For use with 2”, 3” and 4”
(50 mm, 80 mm and 100 mm)
nominal gate valves
(Family Group Code Y55020).
The MA 2012 series increases
the area affected by applied
control pressure.

Pressure
relief
device

Top shaft
Seal retainer
Rod wiper
Snap ring
Polypak seal
Wear bearing
Diaphragm nut
Pressure inlet

Stem extension
Diaphragm retainer plate
Pressure inlet
Diaphragm
Downstop
Spring
Breather plug
Packing retainer
Lower ring
Stem
Bonnet

17

MA 2016 Series
For use with 2”, 3”, 4” and 6”
(50 mm, 80 mm, 100 mm and
150 mm) nominal gate valves
(Family Group Code Y55020).

Pressure
relief device

Top shaft
Seal retainer
Rod wiper
Snap ring
Polypak seal
Wear bearing
Diaphragm nut
Pressure inlet
Stem extensions
Diaphragm retainer plate

The MA 2016 series increases
the area affected by applied
control pressure.

Pressure inlet
Diaphragm
Downstop
Spring
Breather plug
Packing retainer
Lower ring
Stem
Bonnet

MA 2020 Series
For use with 2”, 3”, 4”, 5”, 6”
and 8” (50 mm, 80 mm, 100 mm,
125 mm, 150 mm and 200 mm)
nominal gate valves
(Family Group Code Y55020).
The MA 2020 series increases
the area affected by applied
control pressure.

Pressure
relief device

Top shaft
Seal retainer
Rod wiper
Snap ring
Polypak seal
Wear bearing
Diaphragm nut
Pressure inlet
Stem extensions
Diaphragm retainer plate
Pressure inlet
Diaphragm
Downstop
Spring
Breather plug
Packing retainer
Lower ring
Stem
Bonnet

18

PNEUMATIC PISTON ACTUATOR
MP 13 Series

Description

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

Cameron’s pneumatic piston actuator series is designed for use with all
manufacturers’ gate valves in nominal sizes of 2” to 4” (50 mm to 100 mm).
Its remarkably simple design and operating principle make this piston
actuator suitable for a variety of applications. Cameron’s piston actuators
are interchangeable and very versatile because they operate with many
types of supply gas, compressed air, nitrogen or well gas.

Design Advantages
Stronger Actuator
Mounting Arrangement
Unlike other designs, the mounting
bolts on Cameron’s actuators are
positioned parallel to the centerline
of the actuator, which loads the
mounting bolts in tension. This design
is not subject to bending and shear
forces. This means it can withstand
greater separation forces than other
actuators on the market.

Pressure
relief device

Pressure inlet
Top cap
Diaphragm nut
Piston seal
Piston
Upper spring retainer

Corrosion-Resistant Materials
Cameron’s piston actuators are
manufactured to NACE MR0175.
In addition, all non-stainless
components are coated with Xylan
to increase corrosion resistance.

Superior Diaphragm Design
Cameron’s piston actuators utilize 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.

Top shaft
Seal retainer
Rod wiper
Snap ring
Polypak seal

Downstop
Housing
Spring

Breather plug

Snap ring
Lock ring
Lower housing
Packing retainer
Lower ring
Stem
Bonnet

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.
19

OPERATING SIZE REQUIREMENTS
Model M – 2” to 4” (50 mm to 100 mm) ASME Classes 150 to 1500
BlockStem Thread
Valve
ASME
Recommended Recommended
andSize ASME Working
Operating
Operating
Bleed
in.
Class Pressure Size Pitch Lead
Thrust
Torque
Thrust
(mm)
(psig)
(lbf)
(ft-lbf)
in.
in.
in.
(lbf)

BlockandBleed
Torque
(ft-lbf)

Maximum
Allowable
Thrust
(lbf)

Maximum
Allowable
Torque
(ft-lbf)

Total
Stem Nut
Stem
Turns-toTravel
Open
in. (mm)
Valve

2 (50)

150

290

0.875 0.167 0.167

457

3

535

4

12,597

93

2.63 (67)

15.8

2 (50)

300

750

0.875 0.167 0.167

1183

9

1383

10

12,597

93

2.63 (67)

15.8

2 (50)

600

1500

0.875 0.167 0.167

2366

17

2766

20

12,597

93

2.63 (67)

15.8

2 (50)

900

2250

0.875 0.167 0.167

3549

26

4149

30

12,597

93

2.63 (67)

15.8

2 (50)

1500

3750

0.875 0.167 0.167

5914

43

6915

51

12,597

93

2.63 (67)

15.8

3 (80)

150

290

1.000 0.200 0.200

803

7

1115

9

16,027

136

4.03 (102)

20.2

3 (80)

300

750

1.000 0.200 0.200

2078

18

2884

25

16,027

136

4.03 (102)

20.2

3 (80)

600

1500

1.000 0.200 0.200

4155

35

5769

49

16,027

136

4.03 (102)

20.2

3 (80)

900

2250

1.000 0.200 0.200

6233

53

8653

74

16,027

136

4.03 (102)

20.2

3 (80)

1500

3750

1.000 0.200 0.200

10,388

88

14,422

123

16,027

136

4.03 (102)

20.2

4 (100)

150

290

1.250 0.250 0.250

1327

14

1783

19

25,442

271

4.88 (124)

19.5

4 (100)

300

750

1.250 0.250 0.250

3432

37

4610

49

25,442

271

4.88 (124)

19.5

4 (100)

600

1500

1.250 0.250 0.250

6864

73

9221

98

25,442

271

4.88 (124)

19.5

4 (100)

900

2250

1.250 0.250 0.250

10,297

110

13,831

147

25,442

271

4.88 (124)

19.5

4 (100) 1500

3750

1.250 0.250 0.250

17,161

183

23,052

245

25,442

271

4.88 (124)

19.5

Model C6B – 6” to 12” (150 mm to 300 mm) ASME Classes 600 to 900
BlockStem Thread
Valve
ASME
Recommended Recommended
andSize ASME Working
Operating
Operating
Bleed
Size
Pitch
Lead
in.
Class Pressure
Thrust
Torque
Thrust
in.
in.
in.
(mm)
(psig)
(lbf)
(ft-lbf)
(lbf)

BlockandBleed
Torque
(ft-lbf)

Maximum
Allowable
Thrust
(lbf)

Maximum
Allowable
Torque
(ft-lbf)

Total
Stem Nut
Stem
Turns-toTravel
Open
in. (mm)
Valve

6 (150)

600

1500

1.250 0.250 0.250

9839

105

14,307

152

26,783

283

7.25 (184)

29

6 (150)

900

2250

1.250 0.250 0.250

14,758

157

21,460

228

27,685

335

7.25 (184)

29

8 (200)

600

1500

1.750 0.250 0.250

17,099

237

21,507

298

45,807

557

9.25 (235)

37

8 (200)

900

2250

1.750 0.250 0.250

25,649

355

32,261

447

49,637

604

9.25 (235)

37

10 (250)

600

1500

1.750 0.250 0.250

23,859

330

29,078

403

46,726

569

11.25 (286)

45

10 (250)

900

2250

1.750 0.250 0.250

35,789

495

43,617

604

57,297

697

11.25 (286)

45

12 (300)

600

1500

1.750 0.250 0.250

32,032

443

41,381

573

69,033

840

13.31 (338)

53

12 (300)

900

2250

2.000 0.250 0.250

49,816

770

62,072

959

80,522

1109

13.31 (338)

53

14 (350)

150

290

1.500 1.390 0.400

7149

104

16,674

242

9053

131

14.75 (375)

36.875

14 (350)

600

1500

2.000 1.864 0.500

39,183

741

64,831

1226

46,824

886

14.75 (375)

29.50

16 (400)

150

290

1.500 1.390 0.400

9177

133

27,543

399

11,448

166

16.75 (425)

41.875

16 (400)

600

1500

2.000 1.864 0.500

49,676

940

69,091

1307

59,215

1120

16.75 (425)

33.50

18 (450)

150

290

1.500 1.390 0.400

11,594

168

22,596

327

13,960

202

18.50 (470)

46.25

18 (450)

600

1500

2.250 2.113 0.500

63,501

1303

98,175

2014

72,208

1481

18.75 (470)

37.50

20 (500)

150

290

1.750 1.614 0.500

14,380

249

31,621

548

17,230

298

20.75 (527)

41.50

20 (500)

600

1500

2.750 2.536 0.500

79,986

1858

145,272

3375

89,122

2070

20.75 (527)

41.50

24 (600)

150

290

2.000 1.864 0.500

20,606

390

21,390

405

26,347

498

25.125 (638)

50.25

24 (600)

600

1500

3.250 3.036 0.800

114,674

3510

219,495

6718

136, 279

4171

25.00 (635)

31.25

Note:

20

1.	Recommended operating thrust and torque are the loads required to open or close the valve with full differential pressure
across the gate. The operator should be sized for these values.
2. Maximum allowable thrust and torque values are maximum allowable loads of the valve.
3. When block-and-bleed or double block-and-bleed service is specified, operators should be sized for these values.
4. Unless otherwise stated, handwheel rim pull for manual and motor operators shall not exceed 120 lb (54 kg).
5. All torque and thrust values are based on maximum working pressure at ambient temperature.

Models C6, C2B, C2C – 6” to 36” (150 mm to 900 mm) ASME Classes 150 to 900
BlockStem Thread
ASME
Recommended Recommended Maximum Maximum
andASME Working
Operating
Operating
Allowable Allowable
Bleed
Class Pressure Size Pitch Lead
Thrust
Torque
Thrust
Torque
Thrust
in.
in.
in.
(psig)
(lbf)
(ft-lbf)
(lbf)
(ft-lbf)
(lbf)

Valve
Size
in.
(mm)
6 (150)
6 (150)
6 (150)
6 (150)
8 (200)
8 (200)
8 (200)
8 (200)
10 (250)
10 (250)
10 (250)
10 (250)
12 (300)
12 (300)
12 (300)
12 (300)
14 (350)
14 (350)
14 (350)
14 (350)
16 (400)
16 (400)
16 (400)
16 (400)
18 (450)
18 (450)
18 (450)
18 (450)
20 (500)
20 (500)
20 (500)
20 (500)
22 (550)
22 (550)
22 (550)
24 (600)
24 (600)
24 (600)
24 (600)
30 (750)
30 (750)
30 (750)
36 (900)
36 (900)
36 (900)

Note:

150
300
600
900
150
300
600
900
150
300
600
900
150
300
600
900
150
300
600
900
150
300
600
900
150
300
600
900
150
300
600
900
150
300
600
150
300
600
900
150
300
600
150
300
600

290
750
1500
2250
290
750
1500
2250
290
750
1500
2250
290
750
1500
2250
290
750
1500
2250
290
750
1500
2250
290
750
1500
2250
290
750
1500
2250
290
750
1500
290
750
1500
2250
290
750
1500
290
750
1500

1.250
1.250
1.250
1.250
1.500
1.500
1.500
1.500
1.500
1.500
1.500
1.500
1.500
1.500
1.500
1.750
1.500
2.000
2.000
2.250
1.500
1.500
2.000
2.750
1.500
1.750
2.250
2.750
1.750
2.000
2.750
3.000
1.750
2.250
3.000
2.000
2.250
3.250
3.750
2.250
3.000
3.750
2.750
3.250
4.250

0.250
0.250
0.250
0.250
0.250
0.250
0.250
0.250
0.250
0.250
0.250
0.250
0.250
0.250
0.250
0.250
0.200
0.250
0.250
0.250
0.200
0.200
0.250
0.400
0.200
0.250
0.250
0.400
0.250
0.250
0.400
0.400
0.250
0.250
0.400
0.250
0.250
0.400
0.400
0.250
0.400
0.400
0.400
0.400
0.400

0.250
0.250
0.250
0.250
0.250
0.250
0.250
0.250
0.250
0.250
0.250
0.250
0.250
0.250
0.250
0.250
0.400
0.500
0.500
0.500
0.400
0.400
0.500
0.800
0.400
0.500
0.500
0.800
0.500
0.500
0.800
0.800
0.500
0.500
0.800
0.500
0.500
0.800
0.800
0.500
0.800
0.800
0.800
0.800
0.800

1902
4919
9836
14,757
3106
8033
16,067
24,100
4413
11,413
22,828
34,239
5993
15,500
30,999
48,045
7149
19,594
39,187
60,540
9178
23,735
49,680
81,146
11,594
30,500
63,504
99,884
14,381
37,782
79,982
122,624
17,243
45,845
96,549
20,605
53,952
114,677
178,422
31,396
83,626
173,437
44,184
116,110
241,350

18
47
95
142
34
89
177
266
49
126
252
378
66
171
342
597
95
338
676
1129
122
314
857
2040
154
484
1184
2512
228
652
2011
3252
274
855
2561
356
1006
3200
5474
585
2218
5321
1111
3240
8075

31,785
31,785
31,785
31,785
52,036
52,036
52,036
52,036
52,036
52,036
52,036
52,036
52,036
52,036
52,036
77,223
54,521
101,611
101,611
135,875
54,521
54,521
101,611
180,794
54,521
72,304
135,875
180,794
72,304
101,611
180,794
225,696
72,304
135,875
225,696
101,611
135,875
275,560
390,393
135,875
225,698
390,393
180,794
275,560
525,088

307
307
307
307
574
574
574
574
574
574
574
574
574
574
574
960
722
1754
1754
2533
722
722
1754
4546
722
1148
2533
4546
1148
1754
4546
5986
1148
2533
5986
1754
2533
7689
11,977
2533
5986
11,877
4546
7889
17,568

2762
7143
14,285
21,428
4153
10,740
21,481
32,221
5817
15,045
30,090
45,135
7755
20,056
40,113
60,169
9063
23,439
46,878
70,547
11,439
29,584
59,168
88,752
13,974
36,139
72,278
108,418
17,245
44,600
89,200
133,801
21,470
55,526
111,051
26,366
68,188
138,375
204,563
42,018
108,866
217,333
57,303
148,199
296,397

BlockandBleed
Torque
(ft-lbf)

Total
Stem
Travel
in. (mm)

Stem Nut
Turns-toOpen
Valve

27
69
138
207
46
119
237
356
64
168
332
498
86
221
443
748
120
405
809
1315
152
392
1021
2232
185
574
1347
2726
274
770
2243
3549
341
1035
2945
455
1271
3806
6276
783
2882
6668
1441
4135
9317

7.25 (184)
7.25 (184)
7.25 (184)
7.25 (184)
9.25 (235)
9.25 (235)
9.25 (235)
9.25 (235)
11.25 (286)
11.25 (286)
11.25 (286)
11.25 (286)
13.25 (337)
13.25 (337)
13.25 (337)
13.25 (337)
14.69 (373)
14.69 (373)
14.69 (373)
14.69 (373)
16.69 (424)
16.69 (424)
16.69 (424)
16.69 (424)
18.44 (468)
18.69 (475)
18.69 (475)
18.69 (475)
20.75 (527)
20.75 (527)
20.75 (527)
20.75 (527)
22.94 (583)
22.94 (583)
22.94 (583)
25.13 (638)
25.13 (638)
25.13 (638)
25.13 (638)
31.25 (794)
31.25 (794)
31.25 (794)
36.88 (937)
36.88 (937)
36.88 (937)

29
29
29
29
37
37
37
37
45
45
45
45
53
53
53
53
36.73
29.38
29.38
29.38
41.73
41.73
33.38
20.86
46.10
37.38
37.38
23.36
41.50
41.50
25.94
25.94
45.88
45.88
28.68
50.26
50.26
31.41
31.41
62.50
39.06
39.06
46.10
46.10
46.10

1. Use recommended operating thrust and torque for sizing bevel gear operators.
2. Use block-and-bleed thrust and torque for sizing power operators (electric, gas, hydraulic and more).
3. Maximum operating thrust and torque are the maximum allowable for the valve.

21

TOPWORKS
Model M
Sizes 2” to 4” (50 mm to 100 mm)
Classes 150, 600, 900 and 1500

2” – 0.875” -6NA-2G LH
3” – 1.000” -5NA-2G LH
4” – 1.25” -4NA-2G LH
G

Ø
C

Ø

D

± 0.005

1/4”– 18 NPT
F

Ø4.25
G

B

4 Holes

E

A

Model M

22

Size in.
(mm)

ASME
Class

Open

Closed

A

B

C

D

E

F

G

H

J

2 (50)

600 and
1500

9.25
(234.95)

6.56
(166.62)

6.44
(163.58)

2.808
(71.32)

0.63
(16.00)

0.12
(3.05)

5.00
(127.00)

4.00
(101.60)

4
(101.60)

3 (80)

150 and
1500

12.00
(304.80)

7.97
(202.44)

7.75
(196.85)

2.808
(71.32)

0.63
(16.00)

0.12
(3.05)

5.00
(127.00)

4.00
(101.60)

4
(101.60)

4 (100)

150 and
600

15.00
(381.00)

10.12
(257.05)

9.95
(252.73)

3.308
(84.02)

0.625
(15.88)

0.12
(3.05)

5.25
(133.35)

4.25
(107.95)

4
(101.60)

4 (100)

900 and
1500

13.63
(346.20)

8.75
(222.25)

9.95
(252.73)

3.308
(84.02)

1.00
(25.40)

0.12
(3.05)

6.00
(152.40)

5.00
(127.00)

4
(101.60)

TOPWORKS
Model C6
Sizes 6” to 12” (150 mm to 300 mm)
Class 150

C

Top of stem open
To centerline of valve nore
D

B

Total
stem travel

Top of stem closed

G

N
P

H

Ø

F

E

J

Ø

L

Ø

M

Ø

Minimum full thd.

K

= Number and
size of holes

End of stem thd. diameter

Model C6
Size in.
ISO
Series
(mm)
FLG

A -NA-2G-L.H.
Single Lead
Thd.

Closed
B

Open
C

D

E

F

G

H

J

K

L

M

N

P

6
(150)

150/3C F14

1-1/2 - 0.250P
- 0.250L

8.50
15.75
7.25
16.83 16.31
27.38
6.88
5.50
4 - 0.658
(215.90) (400.05) (184.15) (427.48) (414.27) (695.45) (174.75) (139.70) (4 - 16.71)

3.942
(100.127)
3.952
(100.381)

2.62
(66.55)

1.00
(25.40)

0.169
(4.29)
0.183
(4.65)

8
(200)

150/3C F14

1-1/2 - 0.250P
- 0.250L

10.19 19.44
9.25
20.58 20.06
35.44
6.88
5.50
4 - 0.688
(258.83) (493.78) (234.95) (522.73) (509.52) (900.18) (174.75) (139.70) (4 - 17.48)

3.942
(100.127)
3.952
(100.381)

2.62
(66.55)

1.00
(25.40)

0.169
(4.29)
0.183
(4.65)

10
(350)

150/3C F14

1-1/2 - 0.250P
- 0.250L

8.19
19.44 11.25 20.58 20.06
38.50
6.88
5.50
4 - 0.688
(208.03) (493.78) (285.75) (522.73) (509.52) (977.90) (174.75) (139.70) (4 - 17.48)

3.942
(100.127)
3.952
(100.381)

2.62
(66.55)

1.00
(25.40)

0.169
(4.29)
0.183
(4.65)

12
(300)

150/3C F14

1-1/2 - 0.250P
- 0.250L

9.69
23.00 13.31 24.20 23.69
44.00
6.88
5.50
4 - 0.688
(246.13) (584.20) (338.07) (614.68) (601.73) (1117.60) (174.75) (139.70) (4 - 17.48)

3.942
(100.127)
3.952
(100.381)

2.62
(66.55)

1.00
(25.40)

0.169
(4.29)
0.183
(4.65)

23

TOPWORKS
Model C6B
Sizes 6” to 12” (150 mm to 600 mm)
Classes 150, 600 and 900
C

Top of stem open

To centerline of valve nore

D

B

Total
stem travel

Top of stem closed

G
N
P

H

Ø

J

F

E

24

Ø

L

Ø

M

Ø

Minimum Full thd.
End of stem thd. diameter

K

= Number and
size of holes

Model C6B
Size
ISO
in. Class
FLG
(mm)

ACME Stem

Closed

Open

A

B

C

D

E

F

G

H

J

K

6
600
F14
(150) and 900

1-1/4 - 0.250P
- 0.250L

7.83
10.02
7.19
16.69
16.25
28.06
6.89
5.512 4 - 0.688
(198.88) (254.51) (182.63) (423.93) (412.75) (712.72) (175.01) (140.00) (4 - 17.48)

8
600
F14
(200) and 900

1-3/4 - 0.250P
- 0.250L

10.17
19.37
9.20
20.44
20.00
35.41
6.89
5.512 4 - 0.688
(258.32) (492.00) (233.68) (519.18) (508.00) (899.41) (175.01) (140.00) (4 - 17.48)

10
(250)

600

F14

1-3/4 - 0.250P
- 0.250L

8.17
19.37
11.20
20.44
20.00
38.47
6.89
5.512 4 - 0.688
(207.52) (492.00) (284.48) (519.18) (508.00) (977.14) (175.01) (140.00) (4 - 17.48)

10
(250)

900

F16

1-3/4 - 0.250P
- 0.250L

8.17
19.37
11.20
20.44
20.00
38.47
8.27
6.496 4 - 0.812
(207.52) (492.00) (284.48) (519.18) (508.00) (977.14) (210.06) (165.00) (4 - 20.62)

12
(300)

600

F16

1-3/4 - 0.250P
- 0.250L

9.61
22.83
13.22
24.06
23.62
43.91
8.27
6.496 4 - 0.812
(244.09) (579.88) (335.79) (611.12) (599.95) (1115.31) (210.06) (165.00) (4 - 20.62)

12
(300)

900

F16

2 - 0.250P
- 0.250L

9.55
22.67
13.12
24.06
23.62
44.47
8.27
6.496 4 - 0.812
(242.57) (575.82) (333.25) (611.12) (599.95) (1129.54) (210.06) (165.00) (4 - 20.62)

14
(350)

150

FA14

1-1/2 - 0.200P
- 0.400L

10.68
25.34
14.66
26.39
25.69
46.50
6.89
5.512 4 - 0.688
(271.27) (643.64) (372.36) (670.31) (652.53) (1181.10) (175.01) (140.00) (4 - 17.48)

14
(350)

600

FA16

2 - 0.250P
- 0.500L

10.68
25.34
14.66
27.27
26.69
49.75
8.25
6.500 4 - 0.812
(271.27) (643.64) (372.36) (692.66) (677.93) (1263.65) (209.55) (165.10) (4 - 20.62)

16
(400)

150

FA14

1-1/2 - 0.200P
- 0.400L

10.38
27.07
16.69
28.14
27.56
51.37
6.89
5.512 4 - 0.688
(263.65) (687.58) (423.93) (714.76) (700.02) (1304.80) (175.01) (140.00) (4 - 17.48)

16
(400)

600

FA25

2 - 0.250P
- 0.500L

10.19
28.86
16.67
28.20
27.59
53.56
11.50 10.000 8 - 0.688
(258.83) (733.04) (423.42) (716.28) (700.79) (1360.42) (292.10) (254.00) (8 - 17.48)

18
(450)

150

FA14

1-1/2 - 0.200P
- 0.400L

11.68
30.09
18.41
31.14
27.56
57.00
6.89
5.512 4 - 0.688
(296.67) (764.29) (467.61) (790.96) (700.02) (1447.80) (175.01) (140.00) (4 - 17.48)

18
(450)

600

FA25

2-1/4 - 0.250P
- 0.500L

11.93
30.62
18.69
32.39
31.81
60.19
11.50 10.000 8 - 0.688
(303.02) (777.75) (474.73) (822.71) (807.97) (1528.83) (292.10) (254.00) (8 - 17.48)

20
(500)

150

FA14

1-3/4 - 0.250P
- 0.500L

10.97
31.69
20.72
32.83
32.25
62.28
6.89
5.512 4 - 0.688
(278.64) (804.93) (526.29) (833.88) (819.15) (1581.91) (175.01) (140.00) (4 - 17.48)

20
(500)

600

FA30

2-3/4 - 0.400P
- 0.800L

12.57
33.30
20.73
34.88
34.31
65.67
13.62 11.750 8 - 0.875
(319.28) (845.82) (526.54) (885.95) (872.24) (1668.02) (345.95) (298.45) (8 - 22.23)

24
(600)

150

FA14

2 - 0.250P
- 0.500L

11.03
36.14
25.11
37.02
36.44
75.61
6.89
5.512 4 - 0.688
(280.16) (917.96) (637.79) (940.31) (925.58) (1920.49) (175.01) (140.00) (4 - 17.48)

24
(600)

600

FA35

3-1/4 - 0.400P
- 0.800L

13.12
38.26
25.14
39.95
39.38
80.00
16.12 14.000 8 - 1.120
(333.25) (971.80) (638.56) (1014.73) (1000.25) (2032.00) (409.45) (355.60) (8 - 28.45)

L
3.945
(100.203)
3.955
(100.457)
3.945
(100.203)
3.955
(100.457)
3.945
(100.203)
3.955
(100.457)
5.240
(133.096)
5.260
(133.604)
5.240
(133.096)
5.260
(133.604)
5.240
(133.096)
5.260
(133.604)
3.945
(100.203)
3.955
(100.457)
5.010
(127.254)
5.020
(127.508)
3.945
(100.203)
3.955
(100.457)
6.010
(152.654)
6.020
(152.908)
3.945
(100.203)
3.955
(100.457)
6.010
(152.654)
6.020
(152.908)
3.945
(100.203)
3.955
(100.457)
7.010
(178.054)
7.020
(178.308)
3.945
(100.203)
3.955
(100.457)
8.510
(216.154)
8.520
(216.408)

M

N

2.50
1.03
(63.50) (26.16)

2.50
1.03
(63.50) (26.16)

2.50
1.03
(63.50) (26.16)

2.50
1.50
(63.50) (38.10)

2.50
1.50
(63.50) (38.10)

3.25
1.50
(82.55) (38.10)

2.50
1.03
(63.50) (26.16)

2.88
1.50
(73.15) (38.10)

2.50
1.03
(63.50) (26.16)

3.12
2.00
(79.25) (50.80)

2.50
1.03
(63.50) (26.16)

3.00
2.36
(76.20) (59.94)

2.50
1.03
(63.50) (26.16)

3.50
2.75
(89.90) (69.85)

2.50
1.03
(63.50) (26.16)

4.50
3.00
(114.30) (76.20)

P
0.168
(4.267)
0.188
(4.775)
0.168
(4.267)
0.188
(4.775)
0.168
(4.267)
0.188
(4.775)
0.220
(5.588)
0.240
(6.096)
0.220
(5.588)
0.240
(6.096)
0.220
(5.588)
0.240
(6.096)
0.168
(4.267)
0.188
(4.775)
0.220
(5.588)
0.240
(6.096)
0.168
(4.267)
0.188
(4.775)
0.220
(5.588)
0.240
(6.096)
0.168
(4.267)
0.188
(4.775)
0.220
(5.588)
0.240
(6.096)
0.168
(4.267)
0.188
(4.775)
0.220
(5.588)
0.240
(6.096)
0.168
(4.267)
0.188
(4.775)
0.223
(5.664)
0.237
(6.020)

25

FLOW COEFFICIENTS (C V )
The following chart outlines the CV for through-conduit gate valves having end-to-end dimensions and bore diameters
in compliance with API 6D standards.
CV is the flow of water through the valve at 1 psi pressure drop in gal/min. Since CV is a calculated number, the actual
value may vary.

Valve Size in.
(mm)

150

300

400

600

900

1500

2500

2 (50)

476

432

378

378

337

337

218

3 x 2 (80 x 50)

-

-

165

165

203

239

-

2-1/2 (65)

-

-

682

682

558

558

305

3 (80)

1358

1155

1053

1109

1072

966

474

4 x 3 (100 x 80)

-

-

534

529

597

677

624
725

4 (100)

2508

2176

1925

1944

1890

1730

6 x 4 (150 x 100)

-

-

886

944

943

1231

-

6 (150)

5402

5300

4860

4577

4383

3622

2510

8 x 6 (200 x 150)

2583

2499

-

3240

3588

2137

-

8 (200)

11,261

11,054

9345

8886

8416

6879

5227

10 x 8 (250 x 200)

-

5218

-

5036

7975

4859

-

12 x 8 (300 x 200)

-

3302

-

3892

-

-

-

10 (250)

19,181

18,856

15,771

14,533

14,087

11,283

8313

12 (300)

29,435

28,980

23,834

22,729

21,025

16,843

12,282

12 x 10 (300 x 250)

7875

-

-

12,799

7299

-

-

14 (350)

35,605

30,883

29,921

28,837

23,846

20,336

16 x 14 (400 x 350)

-

-

-

21,096

-

-

-

16 (400)

49,979

42,224

41,022

39,144

33,358

27,548

21,396

20 x 16 (500 x 400)

13,060

-

15,761

-

-

-

-

18 (450)

66,156

55,740

54,277

51,368

45,004

-

-

20 (500)

83,865

70,386

68,680

64,559

56,871

-

-

26

22 (550)

-

86,869

85,422

80,279

-

-

-

24 (600)

127,916

106,835

103,504

97,240

84,836

-

-

26 (650)

149,428

123,222

120,829

114,905

-

-

-

28 (700)

176,798

144,355

142,391

135,267

-

-

-

30 (750)

212,313

170,229

163,776

157,401

133,706

-

-

36 (900)

322,548

245,362

236,147

224,424

-

-

-

FLOW COEFFICIENTS (K V )
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 cu m/hr. Since KV is a calculated number, the actual
value may vary.

Valve Size in.
(mm)

150

300

400

600

900

1500

2500

2 (50)

412

373

327

327

291

291

188

3 x 2 (80 x 50)

-

-

142

142

175

207

-

2-1/2 (65)

-

-

590

590

483

483

264

3 (80)

1175

999

911

959

927

835

410

4 x 3 (100 x 80)

-

-

462

458

516

585

540
627

4 (100)

2170

1882

1665

1682

1635

1496

6 x 4 (150 x 100)

-

-

766

817

816

1065

-

6 (150)

4673

4585

4204

3959

3792

3133

2172

8 x 6 (200 x 150)

2234

2162

-

2803

3103

1849

-

8 (200)

9742

9562

8084

7687

7280

5951

4522

10 x 8 (250 x 200)

-

4514

-

4356

6898

4204

-

12 x 8 (300 x 200)

-

2857

-

3367

-

-

-

10 (250)

16,592

16,312

13,643

12,572

12,186

9761

7191

12 (300)

25,463

25,070

20,617

19,662

18,188

14,570

10,624

12 x 10 (300 x 250)

6812

-

-

11,072

6314

-

-

14 (350)

30,800

26,715

25,883

24,945

20,628

17,591

16 x 14 (400 x 350)

-

-

-

18,249

-

-

-

16 (400)

43,234

36,526

35,486

33,862

28,856

23,831

18,509

20 x 16 (500 x 400)

11,298

-

13,634

-

-

-

-

18 (450)

57,228

48,218

46,953

44,436

38,930

-

-

20 (500)

72,547

60,888

59,412

55,847

49,196

-

-

22 (550)

-

75,147

73,894

69,445

-

-

-

24 (600)

110,654

92,417

89,536

84,117

73,388

-

-

26 (650)

129,263

106,593

104,523

99,399

-

-

-

28 (700)

152,939

124,874

123,175

117,013

-

-

-

30 (750)

183,661

147,257

141,674

136,160

115,662

-

-

36 (900)

279,021

212,251

204,279

194,138

-

-

-

27

TRIM CHART
Service
Waterflood,
Corrosive

Standard

Corrosive
Service

Sour, Mildly
Corrosive

LowTemperature,
Non-Sour

LowTemperature,
Sour

Anhydrous
Ammonia

Standard

MTBE

Standard

28

Trim
Code

Body and
Bonnet

Gate

T-10

WCC
Carbon Steel,
Internally
Coated

Carbon Steel, ASME
Classes 300-600,
Low-Alloy Steel 900
Class, Nickel-Plated

Carbon Steel,
Nickel-Plated
PTFE Insert

PTFE

Low-Alloy
Steel, NickelPlated

Alloy
Steel,
NACE

Stainless
Steel

-20° F to 250° F
(-29° C to 121° C)

T-11
2” to 4”
only

WCC
Carbon
Steel

Carbon Steel,
Low-Alloy Steel,
Nickel-Plated

Carbon Steel,
Nickel-Plated
PTFE Insert

FKM
Viton

Low-Alloy
Steel, NickelPlated

Alloy
Steel

Carbon
Steel

-20° F to 250° F
(-29° C to 121° C)

T-22

WCC
Carbon
Steel

410
Stainless
Steel

410
Stainless
Steel

PTFE

17-4 PH
Stainless
Steel

Alloy
Steel

Stainless
Steel

-20° F to 250° F
(-29° C to 121° C)

T-24
2” and
larger

WCC
Carbon
Steel

Carbon Steel, ASME
Classes 300-600,
Low-Alloy Steel 900
Class, Nickel-Plated

Carbon Steel,
Nickel-Plated
PTFE Insert

PTFE

Low-Alloy
Steel, NickelPlated

Alloy
Steel,
NACE

Stainless
Steel

-20° F to 250° F
(-29° C to 121° C)

T-36

LCC
Carbon
Steel,
ImpactTested

Carbon Steel, ASME
Classes 300-600,
Low-Alloy Steel 900
Class, Nickel-Plated

Carbon Steel,
Nickel-Plated
PTFE Insert

PTFE

Low-Alloy
Steel,
Impact-Tested,
NickelPlated

Alloy
Steel,
ImpactTested

Stainless
Steel

-50° F to 250° F
(-46° C to 121° C)

T-37

LCC
Carbon
Steel,
ImpactTested

Carbon Steel, ASME
Classes 300-600,
Low-Alloy Steel 900
Class, Nickel-Plated

Carbon Steel,
Nickel-Plated
PTFE Insert

PTFE

Low-Alloy
Steel,
Impact-Tested,
NickelPlated

Alloy
Steel,
NACE,
ImpactTested

Stainless
Steel

-50° F to 250° F
(-46° C to 121° C)

T-88

WCC/A36
Carbon
Steel

Carbon Steel,
Low-Alloy Steel,
Nickel-Plated

Carbon Steel,
Nickel-Plated
PTFE Insert

PTFE

Low-Alloy
Steel, NickelPlated

Alloy
Steel,
NACE

Stainless
Steel

-20° F to 250° F
(-29° C to 121° C)

T-94

WCC
Carbon
Steel

Carbon Steel, ASME
Classes 300-600,
Low-Alloy Steel 900
Class, Nickel-Plated

Carbon Steel,
Nickel-Plated
PTFE Insert

Special

Low-Alloy
Steel, NickelPlated

Alloy
Steel

Carbon
Steel

-20° F to 350° F
(-29° C to 177° C)

T-102
6” and
larger

WCC
Carbon
Steel

Carbon Steel, ASME
Classes 300-600,
Low-Alloy Steel 900
Class, Nickel-Plated

Carbon Steel,
Nickel-Plated
PTFE Insert

PTFE

Low-Alloy
Steel, NickelPlated

Alloy
Steel

Carbon
Steel

-20° F to 250° F
(-29° C to 121° C)

T-101
6” and
larger

WCC
Carbon
Steel

Carbon Steel, ASME
Classes 300-600,
Low-Alloy Steel 900
Class, Nickel-Plated

Carbon Steel,
Nickel-Plated
PTFE Insert

PTFE

Low-Alloy
Steel, NickelPlated

Alloy
Steel

Carbon
Steel

-20° F to 250° F
(-29° C to 121° C)

Seat

Stem
Seal

Stem

Bolting

Fittings

Temperature
Range

COMMON TRIMS
Waterflood (T-10) – Carbon steel body/bonnet with wetted surface, ENP-plated, internal parts of corrosion-resistant
materials.
Model M (Sizes 2” to 4”, (50 mm to 100 mm), Classes 600 through 1500) Standard (T-11) – For non-corrosive
aromatic service with concentration of MTBE to 100%.
Corrosive Service – Internal Parts (T-22) – 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 also is usable for mildly corrosive fluids and gases when limited corrosion of the internal body surfaces can be tolerated.
Sour Gas and Oil (NACE MR0175) (T-24) – Primarily for sour gas and oil (NACE MR0175) where resistance to H2S
embrittlement is required. Also suitable for other chemicals, products or hydrocarbons when H2S is present. May be used
when CO2 is present in smaller amounts than H2S.
Low-Temperature - 50° F (-46° C) NACE (T-36) – For essentially non-corrosive ladings, either liquid or gaseous. The
pressure-retaining components (body, bonnet and bolting) are of impact-tested materials.
Low-Temperature Sour -50° F (-46° C) NACE (T-37) – Primarily for sour gas and oil (NACE MR0175) where resistance to
H2S 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. Can be used
when CO2 is present in smaller amounts than H2S.
Anhydrous Ammonia (T-88) – Special elastomers and stem nut for ammonia service
Fire-Tested to API 6FA (T-94) – These valves have been qualified as fire-tested and contain 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 swell and affect the operation of the valve. Typical examples of ladings are: gasoline, benzene, toluene,
carbon-tetrachloride, 1,1, 1 trichloroethane, richloroethylene perchloroethylene and phosphate ester hydraulic fluids.
Aromatic (to 40% MTBE, Fire-Tested API 6FA or ISO 10497) (T-101) – For essentially non-corrosive, non-sour aromatic
or non-aromatic service with methanol or ethanol based corrosion inhibitors where up to 40% MTBE may be present.

29

PARTIAL OPEN FLOW CHARACTERISTICS
The following graph approximates the 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%

Percent of Valve Stroke

30

70%

80%

90%

100%

CAMSERV Aftermarket Services for Valves and Actuation
™

WE BUILD IT. WE BACK IT.
Global Network and Local Support
Cameron is well-positioned to deliver total aftermarket
support, quickly and efficiently, with unmatched OEM
expertise. Our highly skilled engineers and technicians are
available around the clock, seven days a week, to respond
to customer queries, troubleshoot problems and offer
reliable solutions.

Easily Accessible Parts and Spare Valves
•	OEM spare valves, actuators and parts
(including non-Cameron brands)
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• Dedicated stocking program

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• Parts and spare valves
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SM

Customized asset management plans that optimize uptime,
availability and dedicated services.
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31

Trademark Information

WKM is a registered trademark of Cameron. CAMSERV is a trademark of Cameron.
This document contains references to registered trademarks or product designations,
which are not owned by Cameron.

32

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

Dupont Dow Elastomers L.L.C.

33

3250 Briarpark Drive, Suite 300
Houston, TX 77042
USA
Toll Free 1 800 323 9160
Learn more about WKM gate valves at:
www.c-a-m.com/WKM
WKM@c-a-m.com

ENVIRONME
N
XCELLEN
LE
CE
TA

TH SAFETY
AL
A
HE

ND

CA

HSE Policy Statement
At Cameron, we are committed ethically, financially and personally to a
working environment where no one gets hurt and nothing gets harmed.

MERON

©2013 Cameron | GROVE, CAMERON, RING-O, TOM WHEATLEY, TK and WKM are registered brands of Cameron. CAMSERV, TBV, TEXSTEAM, Saf-T-Seal and Saf-T-Gard are trademarks of Cameron.
Total Valve Care is a service mark of Cameron. Viton and all other brands listed are trademarks of their respective companies. | SWP 1.5M 12/13 AD00912V



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