ERIKS - ERIKS CRANE CV 600 Duo Chek Non Slam Check Valves

brands you trust.
DUO-CHEK® High Performance
Non-Slam Check Valves
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Key Features and Typical Applications
Key Features & Benefits
 Dual-plate designs that are compact and lightweight for efficient seating, operation and
lower installation cost
 Independent springs with long legs to prevent seat scrubbing and provide non-slam
performance
 Retainerless valve design without body penetration for critical service applications
Typical Applications
•
Petroleum Refining
•
Oil and Gas Production
•
Chemicals and Petrochemicals
•
Power Generation
•
Steel/Primary Metals
•
Marine
•
Water and Wastewater
•
Pulp and Paper
Double Flanged (Retainerless)
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Duo-Chek® The High Performance Non-Slam Check Valve
Duo-Chek® high performance non-slam check valves are the original Mission Manufacturing Company wafer check valves
introduced to the market in the late 50's. The valve is available in the sizes, pressure classes and configurations required
to meet the most demanding of applications. Product range includes, but is not limited to:
•Sizes: 2" to 88"
•ASME Pressure Class 125 through 2500
•API 6A and 6D pressure classes
•DIN, JIS, BS, AS, and ISO standards are also available
•Wafer, lug, double flanged and extended body styles
•Wafer configurations available in retainered
and retainerless style
• Body Materials:
Cast Iron, Carbon Steel, Stainless Steels,
Duplex Stainless Steel, Super Duplex
• Resilient Seat Materials:
EPDM, Buna-N, Neoprene, and Viton-B®
Industry Standards*
API 594
Valve Design
API 598
Valve Pressure Testing and Inspection
ASME B16.5 & B16.47
Flanges
ASME B16.34
Pressure/Temperature Ratings
API 6D
Pipeline Valves
API 6A
Production Valves
(PED) 97/23/EC
Pressure Equipment Directive
*Consult factory for other specification requirements.
• Integral and overlaid metal seats also available
• End Connections:
Raised Face, Plain Face, Ring Joint,
Weld-End, Hub-End
Spring action closes plates
independently. (6" and larger)
Viton® is a registered trademark of DuPont Performance Elastomers L.L.C.
Long-leg spring action
allows plates to open and
close without seat scrubbing.
Dual plate lightweight design for
efficient seating and operation.
Wafer Style H (Retainerless)
Hinge support sleeve reduces friction
and minimizes water hammer through
independent plate suspension (on
larger sizes).
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Specify Duo-Chek® ...to your Advantage
Leading engineers specify Duo-Chek® for check valve applications because it provides high
performance. Extensive research and testing with demonstrated performance has earned worldwide
recognition, unmatched in the industry.
The Duo-Chek® wafer valve design is generally stronger, lighter, smaller, more efficient and
less expensive than conventional swing check valves. Its design meets API 594 which is
approximately one fourth the face to face dimension and 15% to 20% the weight, on
most popular sizes, making them less expensive than a swing check valve. It is much
easier to install between standard gaskets and line flanges. The savings compound
during installation due to ease of handling and only one set of flange studs is required.
Therefore, it is more cost effective to install, and also to maintain.
The Duo-Chek® also offers special design features that make it a high performance non-slam check valve. These include
a scrub-free opening, and in most sizes a unique independent spring design as well as an independent plate support
system. These features may not be found in other check valves. Other configurations offered include lug, double flange
and extended body.
Fs
F
F
Fs
Plates in closed
position. Top view.
Heel opens first as flow
begins.
The innovative dual-plate design of
the Duo-Chek® employs two springloaded plates (disc halves) suspended
on a central vertical hinge pin. As flow
begins, the plates open in response
to a resultant force (F) which acts as
the center of the sealed surface area.
The contact point of the reacting spring
leg’s force (Fs) acts beyond the center
of the plate area, causing the heel to
open first. This prevents rubbing of
the seal surface prior to normal plate
opening, eliminating wear.
As the velocity of flow decreases,
torsion spr ing action reacts
automatically. This moves the plates
closer to the body seats, reducing the
distance and time of travel for closure.
By having the plates closer to the body
seats at the time of flow reversal, the
valve dynamic response is greatly
accelerated. This dramatically reduces
the water hammer effect for non-slam
performance.
Plates fully opened (85°)
Plate toe closes first as
flow decreases.
At closing, the point of spring force
causes the toe of the plates to close
first. This prevents dragging of the
heels of the plates and maintains seal
integrity for much longer periods.
Independent Spring Design
Plate in
open
position
Spring with
valve wide
open
Spring with
valve closed
Plate in
closed position
55°
140°
Unstressed
spring
A spring design of the Duo-Chek®
(sizes 6" and larger) allows higher
torque to be exerted against each plate
with independent closing in response
to the process stream. Testing has
proved this action provides up to 25%
improvement in valve life and 50%
reduction in water hammer.
Plates fully seated for
bubble-tight shutoff.
Each of the dual plates has its own
spring or springs, which provide
independent closing action. These
independent springs undergo less
angular deflection, only 140° as
compared to 350° for conventional
springs with two legs.
Independent
Plate Suspension Design
The Duo-Chek® unique hinge design
reduces friction forces by 66%, which
improves valve response significantly.
Support sleeves are inserted through
the outboard hinges so that the upper
hinge is independently supported by
the lower sleeve during valve operation.
This allows both plates to close at the
same time for quick response, and
excellent dynamic performance.
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Design Features
Features
Lightweight and Compact Wafer Design
Benefits
Installs between mating flanges with 10 to 20% the weight of flanged swing
checks in popular sizes - Saves money in initial valve cost and provides
lower installation cost.
Plate heel is lifted first by design to prevent seat wear. Employs two spring-
Dual Plate, Flat Seat Design
Ioaded plates with flat seats - Gives superior performance and tight
shutoff to meet industry standards.
Maximum deflection of 140°, provides improved valve response and
Independent Spring Action
longer life - Saves money with longer valve life and improved system
performance by reducing water hammer.
Independent Plate Suspension with
Unique Hinge Design (larger sizes)
Improves valve response and reduces friction forces by 66% - Further
Simple, External Body Geometry
Configuration simplifies valve insulation - Saves money.
Variety of Body Designs Available
Lug and Double Flange
by utilizing the industry leader as your single source.
Wide Variety of Materials
Versatility for many services - Satisfies more application needs.
Flexibility in Installation Position
Body Strength and Rigidity
assurances of non-slam performance with faster valve response.
Provides options to suit application needs - Eases your selection process
Provides more rigidity than pipe, eliminating concerns of pipe bending loads
of flanged valves - Safety against thermal or seismic catastrophes.
Some sizes suitable for horizontal or vertical up positions - Simplifies piping
design, eliminates constraints that swing checks create.
For critical service applications, prevents possible escape of unwanted
Retainerless Duo-Chek® Design
Eliminates Body Penetrations
and/or hazardous materials to atmosphere - Provides safety in critical
services by eliminating environmental concerns. Standards in Lug
and Double Flange Designs.
In horizontal position flow allows plates to function freely and full open under
Vertical Hinged Design
lower flow conditions as compared to swing check - Reduces pressure
loss, improves dynamic response and eliminates valve chatter.
Special Valves Meet Market Needs:
• Special Lined
• Hub Ends
• Weld Ends
• PED Certified (CE)
• Low Temperature Applications - Cryogenic
• ABS Certified
• CRN Registration
Wide size range, pressure range and added options allow further market
needs to be met - Reliance on world’s largest wafer check line to supply
more needs.
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Applications
A wide variety of body designs, materials, and
trim make Duo-Chek® valves exceptionally
versatile and suitable for a multitude of liquid
and gas fluid applications.
Some of the major markets and typical
applications are depicted here.
Petrochemicals
Oil and Gas Production
Centrifugal Compressor Discharge
Fire Water Lines
Oil/Steam Separation
Steam and CO2 Injection
Gas/Oil Gathering Systems
Flowlines
Wellheads
Regasification
Liquidfaction
Power Generation
Steam
Condensate
Boiler Feed Pumps
Cooling Towers
Service Water Recirculators
River Water Intake
Ethylene
Propylene
Steam
Reboilers
Gases
Chemicals
Chlorine
Phosgene
Aromatics
Polymers
Acids
Air Separation
Caustics
Petroleum Refining
Hydrogen
Cracking
Steam
Crude Oil
Gasoline
Visbreakers
Naphtha
Sulfur
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Applications
Water and Wastewater
Distribution Lines
Pumping Stations
Sewage Plant Blower Discharge
Chemical Treatment
Fire Protection Systems
HVAC Systems
Desalination
Steel/Primary Metals
Quench Lines
De-Scaling
Continuous Casters
Steam
Condensate
Strippers
Electro-Galvanizing
Pulp and Paper
Bleaching Lines
Black Liquor
Green Liquor
White Water
Steam
Chemical Recovery
Marine
Oil Tankers
Tanker Loading Terminals
Offshore Platforms
Sub-Sea Manifolds
Terminal Transfer Lines
Barge Unloading Lines
Shipboard Services
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Valve Configurations
Style G
Retainered Wafer
Sizes 2" – 88"
• ASME Classes 125 – 2500
• Retainered Wafer Design
• Dimensions pages 13–14
Style H
Retainerless Wafer
Sizes 2" – 88"
• ASME Classes 150 – 2500
• Dimensions pages 13–14
Retainerless Wafer Double Flange Valves
Sizes 8" – 88"
• ASME Classes 150 – 900
• Sizes & Dimensions page 15
Retainerless Wafer Lug Valves
Sizes 2" – 24"
• ASME Classes 150 – 2500
• Sizes & Dimensions page 16
Style X
Extended Body Wafer
Sizes 10" – 54"
• ASME Classes 150 – 2500
• Designed for extremely fast opening conditions
• Sizes & Dimensions page 17
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Specials
Hub End Valves
Butt Weld Valves
Valves with Hub ends may be furnished for
use with hub end, clamp-style connections.
These end connections simplify installation
procedures in systems that utilize them.
Please contact your sales office for information
regarding sizes and pressure ratings
available, and other hub end connections
such as Spolock, Seaboard Lloyd, etc.
Valves with butt weld ends may be furnished
for piping systems designed for welded
system components to eliminate potential
joint leak paths. See Ordering Information for
proper figure number designation, so that
weld-end preparations match the mating
pipe schedules.
Cryogenic Valves
Coated & Lined Valves
Duo-Chek® valves may be furnished for
subatmospheric to cryogenic temperatures
-58°F through -321°F(-50°C through -196°C).
Special materials of construction such as low
temperature alloy steels, austenitic stainless
steel, aluminum bronze or Monel ® are
generally required.
Duo-Chek® valves may be furnished with
linings, when specified, for abrasion or
corrosion resistance. Linings include Natural
Rubber, Neoprene, and others. All body
surfaces of lined valves are covered with
the specified material, eliminating the need
for gaskets. Hinge and stop pin holes are
encapsulated to seal them against line fluids.
Monel® is a registered trademark of Special Metals Corporation.
Other Specials
Other Duo-Chek ® specials furnished
include:
• Valves to comply with NACE MR0103
• Valves cleaned for liquid oxygen (LOX)
service
• Valves prepared for Food Service
(austenitic stainless steel)
• Special testing for valves, including
radiography, magnetic particle, dye
Solid alloy valves are recommended for
penetrant, ultrasonic, helium leak, etc.
extremely corrosive applications. A variety of
coatings may be provided on request to resist
corrosion or abrasion. Some of the commonly
specified coatings include epoxies, coal tar
derivatives and sacrificial zinc primers.
Please discuss your requirements with your
sales office.
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Ordering Information
Figure Number System
Size
Style
Pressure Class
24"
H
15
Body & Plate
S
Seal
End
Connection
Body
Configuration
P
F
3
-
Modification
Number
9
DESCRIPTION: 24" Style H, ASME Class 150, Carbon Steel Body, Metal Seal, raised face flanges, with double flange body, (modification number
indicates Inconel® X spring)
Style
Valve Size
Nominal valve sizes are expressed in
inches or millimeters.
In Inches:
For use with ASME, API and B and A
Flange Standards.
In Millimeters:
For use with DIN, or JIS rated valves
(size preceded by "M" for DIN, or "J"
for JIS).
Ordering Letter
H
Body Type
Size Range
Retainerless Duo-Chek Design
Wafer, Lug or Double Flange
®
2" through 88"
(50mm through 2200mm)
G
Wafer, Retainered
2" through 88"
(50mm through 2200mm)
X
Extended Body Design
10" through 54"
(150mm through 1350mm)
W*
Bodies with Integral Weld-Ends
2" through 72"
(50mm through 1800mm)
*Weld-end valves also require the additional designation of the pipe schedule they are designed to fit.
Pressure Classes
ASME
API DIN / JIS1
∆
Ordering
Class
Ordering
Class
Ordering
No.
No.
No.
12
125
21
2000
Flange Standard:
15
150
25
250
31
3000
M - DIN
30
300
40
400
51
5000
J - JIS
60
600
90
900
101
10000
150
1500
250
2500
151
15000
450
4500
BS / AS2
PN
Ordering
Rating
No.
6
10
B - BS
16
25
A - AS
40
64
100
160
250
320
Table
A
thru
T
∆ API Class is shown in psig, cold working pressure.
1 Metric valves with DIN or JIS standard flanges are designated by having the nominal size expressed in millimeters, preceded by "M" or "J". Flange ratings in PN numbers are then listed after the valve style, as in ASME or API Valves.
Example:
M 100 (4") G16 SPF -9
Flange Standard
(M - DIN)
(J - JIS)
100mm Size
Pressure Rating, PN
for DIN or JIS
(in bars)
This specifies a metric valve, designed to fit between DIN
flanges. Nominal size is 100 millimeters (corresponding to
4"), Style G Duo-Chek® with a pressure rating of 16 bars,
carbon steel body and plate, metal seat, raised face end
connections and Inconel® X spring.
2 Valves designed for use with British Standard 10 or Australian Standard 2129 are defined by adding two letters between the style of construction and pressure rating. First letter designates the standard, and the second letter denotes the table in that standard.
Example:
Flange Standard
B - British Std. 10
A - Std. 2129
10
6" G B E 15 BNF
ASME Class
is made from
Figure number lists a 6" Style G Duo-Chek®, designed to fit
between British Standard 10, Table E Flanges, using a Class
150 Valve, having an aluminum bronze body and plates,
Neoprene seal and raised face end connections.
Table in corresponding
Standard
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Ordering Information
Body and Plates
Ordering Letter
BA
C
F
H
K
L
M
S
Material
Ni-Aluminum Bronze
316 Stainless Steel
Alloy 20
Cast Iron with
Al. Br. Plates
Hastelloy® C
C12 Alloy Steel
Monel®
Carbon Steel
Specification
ASTM B148, Alloy 958
ASTM A351, Gr. CF-8M
ASTM A351, Gr. CN7M
ASTM A126, class 40
ASTM B148, (952)
A494, Gr. CW12MW
ASTM A217, Gr. C12 (9% Cr)
ASTM A494, Gr. M30C
ASTM A216, Gr. WCB
Ordering Letter
T
U
V
Y
DZ
EA
GC
TT
EB
Material
Specification
317 S.S.
WC6 Alloy Steel
347 S.S.
C5 Alloy Steel
22% Duplex
254 SMO Stainless
LCC Low Temp. Steel
Titanium
25% Super Duplex
ASTM A351, Gr. CG-8M
ASTM A217, Gr. WC6 (11⁄4% Cr)
ASTM A351, Gr. CF-8C
ASTM A217, Gr. C5 (5% Cr)
ASTM A995, Gr. 4A
UNS S31254, (ASTM CK3MCuN)
ASTM A352, Gr. LCC
ASTM B367, Gr. C2
ASTM A995, Gr 6A
Hastelloy® C is a registered trademark of Haynes International, Inc.
Seal1
Ordering Letter Material
A
EPDM
M
N
P
V
Buna-N
Neoprene
As Body
Viton-B®
Special Body Configurations
End Connections
Operating Temperature Ordering °C
Connections
Letter
°F
F
-18 to 121
0 to 250 G
-30 to 121 -22 to 250 P
-40 to 121 -40 to 250 R
-196 to 538 -321 to 1000 W
-12 to 210 -10 to 410 Serrated face
Hub End
Plain Face
(non serrated, Class 125)
Ring Joint
Weld-End
Spring Selection Guide2
Spring
Material
Operating Temperature
°C
°F
Type 316 S.S.
-129 to 120
-200 to 250
Inconel® X-750
-250 to 537
-420 to 1000
Designation No.
None (Blank)
1
2
3
Configuration
Wafer Style, inserted between
mating flanges with studs
spanning entire length
Lug design w/threaded holes bolted from each end
Lug design with through-bolt holes to protect studs
Double flanged design with valve
flanges bolted to individual line flanges
1 This range of operating temperatures is for general guidance. The range varies with application, body and plate material.
2 For unique service conditions other spring materials are available. Please consult factory.
Common Modifications
Mod No. Material Description
-9
-14
-39
-169
-201
-233
-491
-559
-772
131E
385E
Inconel® X-750 Springs
316 S.S. Plate, Pins
410 S.S. Plate, Pins & Inconel® X-750 Springs
410 S.S. Plate, Pins, Inconel® X-750 Springs and 410 S.S. Overlay Seat
316 S.S. Plate, Pins, Inconel® X-750 Springs
316 S.S. Plate, Pins, Inconel® X-750 Springs and 316 S.S. Overlay Seat
Hard Face Plate, 316 SS, Pins, Inconel® X-750 Springs and Hard Face Seat
Inconel® X-750 Spring and conformance to NACE MR0103
Monel® Plate, Pins, Springs, Bearings and Monel® Overlay Seat
410 S. S. Plate, pins, Inconel X-750 Springs and Hard Face Seat
316 S.S. Plate, Pins, Inconel X-750 Springs and Hard Face Seat
API Trim
No.*
Trim Description
1
Type 410 S.S.
10
5
Type 316 S.S.
Hard Faced Seats
9
8
12
Monel®
F6 and Hard Faced
316 and Hard Faced
*Steel and steel alloy based metals.
NACE MR0103 compliance offered on metal seated valves only.
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Retainerless Check Valves
Style H†
High Performance Check Valve for Critical Applications
For critical applications, Duo-Chek® Retainerless Check
valves Style H feature a one-piece body with no pin
retainer penetration through the body.
These high performance valves utilize the same internal
design of other Duo-Chek® valves with all the unique
features and advantages built into them. The photo shown
is a wafer valve however, designs apply to wafer, lug and
double flange.
Item Part
No. No.
1 Body
2 Plate
3 Seal
4 Stop Pin
5 Hinge Pin
6 Spring*
7 Pin Insert
8 Snap Ring
9 Body Bearing
10 Plate Bearing
11 Spring Bearing
C
1
7
4
8
Section C
1
C
5
6
A
A
4
Flow Direction
11
3 places
7
10
9
2
3
8
This view is rotated 90° to show the actual
operating position of the valve. The pin must
be vertical for horizontal flow.
Section A
* Independent spring in valve sizes 6" and larger.
Because Duo-Chek® Retainerless Check valves have no
body penetrations, potential leak paths through the valve are
eliminated. This makes the Retainerless Check ideally suited
to meet the following critical service applications:
• Hydrocarbon processing
• Chemical processing
• Any industry concerned with fire hazards or environmental safety
Key features of the Duo-Chek® Retainerless Check valve
Style H include:
• A wide selection of body and plate materials
• A choice of metal-to-metal or resilient sealing
• A full range of pressure classes and sizes
• A variety of end connections
• Designs available include wafer, lug and double flange
• Internals easily removed for field replacement under normal inspections and maintenance procedures
†
The advanced design of the Duo-Chek® provides many
operational benefits to the user, which combined with its
more compact size and lower weight, make the Duo-Chek®
Retainerless Check valve Style H an excellent alternative
to a standard swing check valve.
Remarkable advantages include:
• Independent spring action (on 6" and larger) and plate suspension on larger valves
• Free release flat seats
• Springs provide superior response to flow reversal or deceleration
• Minimal water hammer
• Savings in purchase price and installation costs
compared to a conventional swing check valve
• Single body design with no body cartridge
Installation dimensions for these valves are as shown on pages 13-14.
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Dimensions
Wafer Styles G (Retainered) and H (Retainerless)
D
Ring Joint
Facing
A
A
A
Flow Direction
C
Serrated
Raised Face
Valves Only
B
This view is rotated 90° to show the actual
operating position of the valve. The pin must
be vertical for horizontal flow.
Minimum
Flange
Bore
Plain Face
(Class 125 only)
Section A
Wafer body valves are designed with flangeless bodies with short face-to-face dimensions per API 594. They are clamped
between mating flanges which are connected by studs and nuts.
ASME Class 125 (Cast Iron valves only)
Size
ABCD
Weight
inmm inmminmmin mm inmmlbs.kg.
2" 504 1⁄8 1052 1⁄8
542 1⁄16
52
–
–
4 1.8
2 1⁄2" 654 7⁄8 1242 1⁄8
542 15⁄32
63
–
–
6 2.7
5
573 1⁄1678
⁄8 16 73.2
3" 805 3⁄8 1372 1⁄4
4" 1006 7⁄8 1752 1⁄2
644
102 1
25
12 5.4
705
127 1 5⁄1633 15 6.8
5" 1257 3⁄4 1972 3⁄4
6" 1508 3⁄4 2223
766 1⁄16 1541 15⁄1635 20 9
8" 200 11 2793 3⁄4
958
203 3 7⁄1654 40 18
3
1
254 3 3⁄870 65 29
10" 250 13 ⁄8 3404 ⁄4 10810
12" 300 16 1⁄8 4105 5⁄8 14311 15⁄16 3033 9⁄1683 110 50
14" 350 17 3⁄4 4517 1⁄4 18412 1⁄2 3183 1⁄1683 183 83
16" 400 20 1⁄4 5147 1⁄2 19115
381 4 1⁄4113 255 116
18" 450 21 5⁄8 5498
20316 7⁄8 4295 3⁄8137 315 143
20" 500 23 7⁄8 6068 3⁄8 21318 13⁄16 4786 3⁄16160 380 172
24" 600 28 1⁄4 7188 3⁄4 22222 5⁄8 5758 1⁄4210 575 261
30529 1⁄4 7439 9⁄16229 1070 486
30" 750 34 3⁄4 88312
36" 900 41 1⁄4104814 1⁄2 36835
889 12 5⁄16303 1962 890
42" 1050 48 121917
43241
1041 15 381 2800 1270
48" 1200 54 1⁄2138420 5⁄8 52447
1194 16 3⁄4425 3920 1778
54" 1350 61 154921 1⁄4 54051 1⁄2 130819 3⁄4502 6172 2800
60" 1500 67 1⁄2 171526 66056
1422 –
– 7800 3538
66" 1650 74 1⁄4 188631
78765 1⁄4 1657 –­– 12000 5443
72" 1800 80 3⁄4205136
914 68
1727 –
– 14000 6350
78" 1950 84 213339
991 74
1880 –
– 17160 7800
84" 2100 89 3⁄4228042 1067 80
2032 –
– 20460 9300
88" 2200 94 238844 1118 84
2134 –
– 23100 10500
ASME Class 150
Size
ABCD
Weight
inmm inmminmmin mm inmmlbs.kg.
2" 504 1⁄8 1052 3⁄8 601 15⁄16
49
–
–
6
3
2 1⁄2" 654 7⁄8 1242 5⁄8 672 11⁄32
60
–
–
10
5
1
⁄4 6 136
3" 805 3⁄8 1372 7⁄8 732 29⁄3274
5
4" 1006 7⁄8 1752 7⁄8 733 53⁄6497
⁄8 16 178
7
⁄8 22 2712
5" 1257 3⁄4 1973 3⁄8 864 13⁄16122
6" 1508 3⁄4 2223 7⁄8 985 49⁄64 1461 3⁄8 35 3516
8" 20011 2795 1277 5⁄8 1942 1⁄8 54 7032
10" 250 13 3⁄8 3405 3⁄4 1469 9⁄16 2432 3⁄4 70 10648
12" 300 16 1⁄8 4107 1⁄8 18111 3⁄8 2893 1⁄4 83 17278
14" 350 17 3⁄4 4517 1⁄4 18412 1⁄2 3183 1⁄4 83 20091
16" 400 20 1⁄4 5147 1⁄2 19115
3814 7⁄16113 275 125
18" 450 21 5⁄8 5498
203 16 7⁄8 4295 3⁄8 137 315143
20" 500 23 7⁄8 6068 5⁄8 21918 13⁄16 4786 5⁄16160 435 197
24" 600 28 1⁄4 7188 3⁄4 22222 5⁄8 5758 1⁄4 210 620281
203 1555 705
26" 650 30 1⁄2 77514 356 24 1⁄4 616 8 30" 750 34 3⁄4 88313♦ 330♦29 1⁄4 7439 229 1230 558
36" 900 41 1⁄4104815 1⁄4♦3 87♦35
889 1115⁄16303 2017 915
42"105048 121917 43241 104115 381 28001270
48"1200 54 1⁄2138420 5⁄852447 119416 3⁄4 425 39201778
54"1350 61 154921 1⁄4 54051 1⁄2 130819 3⁄4 502 61722800
60"1500 67 1⁄2 171526 66056
1422 –
– 7800 3538
66"1650 74 1⁄4 188631
78765 1⁄4 1657 –­– 12000 5443
72"1800 80 3⁄4205136
914 68
1727 –
– 14000 6350
78" 1950 84 213339
991 74
1880 –
– 17160 7800
84" 2100 89 3⁄4228042 1067 80
2032 –
– 20460 9300
88" 2200 94 238844 1118 84
2134 –
– 23100 10500
Duo-Chek® valves are available in accordance with DIN, BS, JIS, AS and ISO Dimensions. For other sizes and pressure classes contact factory.
Class 125 face-to-face dimensions 2-½"-12" are thinner than the requirements of API 594.
♦These G Style valve dimensions do not meet API 594, please consult factory.
13
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Dimensions
Wafer Styles G (Retainered) and H (Retainerless)
ASME Class 250 (Cast Iron valves only)
Size
A
B
C
D
in mm in mm in mm in mm in mm
3
2"
50 4 3⁄8 111 2 1⁄8 54 1 15⁄16 49
⁄32
2
3
2 1⁄2" 65 5 1⁄8 130 2 3⁄8 60 2 11⁄32 60
⁄8
10
9
3"
80 5 7⁄8 149 2 5⁄8 67 2 29⁄32 74
⁄16
14
9
4" 100 7 1⁄8 181 2 5⁄8 67 3 53⁄64 97
⁄16
14
5" 125 8 1⁄2 216 3 1⁄4 83 4 13⁄16 122
1
25
6" 150 9 7⁄8 251 3 3⁄4 95 5 49⁄64 146 1 1⁄2 38
8" 200 12 1⁄8 308 5 127 7 5⁄8 194 2 1⁄8 54
10" 250 14 1⁄4 362 5 1⁄2 140 9 9⁄16 243 3 1⁄16 80
12" 300 16 5⁄8 422 7 1⁄8 181 11 3⁄8 289 3 1⁄4 83
14" 350 19 1⁄8 486 8 3⁄4 222 12 1⁄2 318 3 3⁄16 81
16" 400 21 1⁄4 540 9 1⁄8 232 14 5⁄16 364 4 1⁄8 105
18" 450 23 1⁄2 597 10 3⁄8 264 16 7⁄8 429 4 13⁄16 122
20" 500 25 3⁄4 654 11 1⁄2 292 17 15⁄16 456 5 3⁄8 136
24" 600 30 1⁄2 775 12 1⁄2 318 21 9⁄16 548 7 1⁄16 179
30" 750 37 1⁄2 953 14 1⁄2 368 28 3⁄4 730 8 13⁄16 224
36" 900 44 1118 19 483
35
889 11 9⁄16 294
42" 1050 50 3⁄4 1289 22 3⁄8 568
41 1041 14 3⁄4 375
48" 1200 58 3⁄4 1492 24 3⁄4 629
47 1194 16 1⁄2 419
ASME Class 300
Size
A
B
C
D
in mm in mm in mm in mm in mm
2" 50 4 3⁄8 111 2 3⁄8 60 1 15⁄16 49
–
–
2 1⁄2" 65 5 1⁄8 130 2 5⁄8 67 2 11⁄32 60
–
–
1
3" 80 5 7⁄8 149 2 7⁄8 73 2 29⁄32 74
⁄4
6
1
7
53
5
4" 100 7 ⁄8 181 2 ⁄8 73 3 ⁄64 97
⁄8
16
7
5" 125 8 1⁄2 216 3 3⁄8 86 4 13⁄16 122
⁄8
22
6" 150 9 7⁄8 251 3 7⁄8 98 5 49⁄64 146 1 3⁄8 35
8" 200 12 1⁄8 308
5
127 7 5⁄8 194 2 1⁄8 54
10" 250 14 1⁄4 362 5 3⁄4 146 9 9⁄16 243 2 3⁄4 70
12" 300 16 5⁄8 422 7 1⁄8 181 11 3⁄8 289 3 1⁄4 83
14" 350 19 1⁄8 486 8 3⁄4 222 12 1⁄2 318 3 3⁄16 81
16" 400 21 1⁄4 540 9 1⁄8 232 14 5⁄16 364 4 1⁄8 105
18" 450 23 1⁄2 597 10 3⁄8 264 16 7⁄8 429 4 13⁄16 122
20" 500 25 3⁄4 654 11 1⁄2 292 17 15⁄16 456 5 5⁄8 143
24" 600 30 1⁄2 775 12 1⁄2 318 21 9⁄16 548 7 1⁄16 179
26" 650 32 7⁄8 835 14 356 24 3⁄8 619
8
203
30" 750 37 1⁄2 953 1511⁄16♦ 368 28 3⁄4 730 9 1⁄16 230
36" 900 44 1118 19 ¼ ♦ 483
35
889 11 3⁄16 284
42" 1050 45 7⁄8 1289 22 3⁄8 568
41 1041 14 3⁄4 375
48" 1200 52 1⁄8 1492 24 3⁄4 629
47 1194 16 1⁄2 419
ASME Class 600
Size
A
B
C
D
in mm in mm in mm in mm in mm
2" 50 4 3⁄8 111 2 3⁄8 60 1 15⁄16 49
–
–
1
2 1⁄2" 65 5 1⁄8 130 2 5⁄8 67 2 11⁄32 60
⁄8
3
1
3" 80 5 7⁄8 149 2 7⁄8 73 2 29⁄32 74
⁄4
6
7
4" 100 7 5⁄8 194 3 1⁄8 79 3 53⁄64 97
⁄8
22
5" 125 9 1⁄2 241 4 1⁄8 105 4 13⁄16 122
1
25
6" 150 10 1⁄2 267 5 3⁄8 136 5 49⁄64 146 1 7⁄16 36
8" 200 12 5⁄8 321 6 1⁄2 165 7 5⁄8 194
2
51
10" 250 15 3⁄4 400 8 3⁄8 213 9 9⁄16 243 2 9⁄32 58
12" 300 18 457
9
229 11 3⁄8 289 3 15⁄32 88
14" 350 19 3⁄8 492 10 3⁄4 273 12 1⁄2 318 2 3⁄4 70
16" 400 22 1⁄4 565 12 305 14 5⁄16 364 4 5⁄16 110
18" 450 24 1⁄8 613 14 1⁄4 362 16 1⁄8 410 3 11⁄16 94
20" 500 26 7⁄8 683 14 1⁄2 368 17 15⁄16 456 5 5⁄16 135
24" 600 31 1⁄8 791 17 1⁄4 438 21 9⁄16 548 6 9⁄16 167
26" 650 34 1⁄8 867 18 547 24 610 7 1⁄4 184
30" 750 38 1⁄4 972 18 7⁄8 398 28 3⁄4 730 9 9⁄16 243
36" 900 44 1⁄2 1130 25 635 33 3⁄4 857 11 15⁄16 303
42" 1050 48 1219 27 5⁄8 702 39 1⁄2 1003 14 1⁄4 362
Weight
lbs. kg.
5
2.3
11
5
11
5
14 6.4
29 13.2
35 16
75 34
113 51
174 79
299 136
380 172
510 231
593 269
1010 458
1880 853
3573 1608
5780 2622
6572 2981
Weight
lbs. kg.
7
3
11
5
15
7
18
8
35 16
45 20
82 37
125 57
200 91
325 147
415 188
555 252
725 329
1100 499
1605 728
2050 930
3573 1621
4723 2147
6090 2768
Weight
lbs. kg.
7
3
11
5
15
7
26 12
50 22.7
80 36
135 61
238 108
333 151
455 206
640 290
890 404
1120 508
2040 925
2530 1148
3375 1531
6300 2858
8447 3832
ASME Class 900
Size
A
in mm in mm
2"
50 5 5⁄8 143
2 1⁄2" 65 6 1⁄2 165
3"
80 6 5⁄8 168
4" 100 8 1⁄8 206
5" 125 9 3⁄4 248
6" 150 11 3⁄8 289
8" 200 14 1⁄8 359
10" 250 17 1⁄8 435
12" 300 19 5⁄8 498
14" 350 20 1⁄2 521
16" 400 22 5⁄8 575
18" 950 25 1⁄8 638
20" 500 27 1⁄2 699
24" 600 33 838
B
in mm
2 3⁄4 70
3 1⁄4 83
3 1⁄4 83
4 102
–
–
6 1⁄4 159
8 1⁄8 206
9 1⁄2 241
11 1⁄2 292
14 356
15 1⁄8 384
17 3⁄4 451
17 3⁄4 451
19 1⁄2 495
C
in
1 11⁄16
2 1⁄8
2 5⁄8
3 7⁄16
4 5⁄16
5 3⁄16
6 13⁄16
8 1⁄2
10 1⁄8
11 1⁄2
12 13⁄16
14 7⁄16
17 15⁄16
21 1⁄2
mm
43
54
67
87
110
132
173
216
257
292
325
367
456
546
D
in mm
–
–
1
⁄16
2
5
⁄16
8
9
⁄16 14
–
–
1 1⁄16 27
1 13⁄32 36
1 13⁄16 46
2 5⁄16 59
2
51
2 5⁄8 67
2 9⁄16 65
5 5⁄16 135
5 5⁄8 143
Weight
lbs. kg.
14
6
16
7
24 11
40 18
–
–
115 52
229 104
388 176
540 245
926 420
1152 523
1318 598
1426 647
2729 1238
ASME Class 1500
Size
A
in mm in mm
2"
50 5 5⁄8 143
2 1⁄2" 65 6 1⁄2 165
3"
80 6 7⁄8 175
4" 100 8 1⁄4 210
5" 125 10 254
6" 150 11 1⁄8 283
8" 200 13 7⁄8 352
10" 250 17 1⁄8 435
12" 300 20 1⁄2 521
14" 350 22 3⁄4 578
16" 400 25 1⁄4 641
18" 450 27 3⁄4 705
20" 500 29 3⁄4 756
24" 600 35 1⁄2 902
B
in mm
2 3⁄4 70
3 1⁄4 83
3 1⁄4 83
4
102
–
–
6 1⁄4 159
1
8 ⁄8 206
9 3⁄4 248
12 305
14 356
15 1⁄8 384
18 7⁄16 468
21 533
22 559
C
in mm
1 11⁄16 43
2 1⁄8
54
2 5⁄8
67
3 7⁄16 87
4 5⁄16 110
5 3⁄16 132
6 13⁄16 173
8 1⁄2 216
10 1⁄8 257
11 1⁄2 292
12 13⁄16 325
13 3⁄4 349
14 3⁄4 375
15 1⁄8 384
D
in mm
–
–
1
⁄16
2
5
⁄16
8
9
⁄16 14
–
–
1 1⁄16 27
13
1 ⁄32 36
1 11⁄16 43
2 1⁄4 57
2
51
2 5⁄8 67
2 11⁄16 68
4 102
4 1⁄8 105
Weight
lbs. kg.
14
6
16
7
25 11
43 20
–
–
110 50
219 99
397 180
725 329
948 430
1380 627
1900 863
2750 1247
4409 2000
B
C
in mm
1 11⁄16 43
2 1⁄8 54
2 5⁄8 67
3 7⁄16 87
4 5⁄16 110
5 3⁄16 132
6 13⁄16 173
8 1⁄2 216
10 1⁄8 257
D
in mm
–
–
1
⁄16
2
1
⁄4
6
7
⁄16 11
–
–
1 1⁄16 27
1 11⁄16 43
1 13⁄16 46
2 3⁄16 56
Weight
lbs. kg.
15
7
22 10
31 14
54 25
–
–
190 86
285 129
502 228
963 437
ASME Class 2500
Size
A
in mm in mm
2"
50 5 3⁄4 146
2 1⁄2" 65 6 5⁄8 168
3"
80 7 3⁄4 197
4" 100 9 1⁄4 235
5" 125 11 279
6" 150 12 1⁄2 318
8" 200 15 1⁄4 387
10" 250 18 3⁄4 476
12" 300 21 5⁄8 549
in
2 3⁄4
3 1⁄4
3 3⁄8
4 1⁄8
–
6 1⁄4
8 1⁄8
10
12
mm
70
83
86
105
–
159
206
254
305
♦These G Style valve dimensions do not meet API 594, please consult
factory.
14
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Dimensions
Style H Double Flange Retainerless
Double Flanged Style Valves bolt up similar to a bolted cap swing check or gate valve. Double flanged versions are
offered as standard on larger size valves where the lay length of the body permits installation of two heavy nuts between
the flanges. These valves are standard retainerless design.
B
A
C
Pin must be vertical
for horizontal flow.
ASME Class 150
Size
A
B
C
Weight
inmminmminmmin mmlbs.kg.
8" 20013 1⁄2 3435
1277 5⁄8
1949342
146 9 9⁄16
243189 86
10" 25016
406 5 3⁄4
12" 30019
483 7 1⁄8 18111 3⁄8 289308140
14" 35021
533 7 1⁄4 18412 1⁄2 318352160
15 381496225
16" 40023 1⁄2 5977 1⁄2191
18" 45025
6358
20316 7⁄8 428551250
20" 50027 1⁄2 6998 5⁄8 21918 7⁄8 480661300
24" 60032
813 8 3⁄4 22222 5⁄8 575860389
30" 75038 3⁄4 98412 30529 1⁄4 7431512 687
36" 90046 116814 ½ 36835
889 2525 1145
42" 105053 134617 43241
1041 4163 1888
48" 120059 1⁄2 151120 5⁄852447 119458802667
54" 135066 1⁄4 168321 1⁄4 53951 1⁄2
1308––
60" 150073 185426 66056
1422
–
–
66" 165080 203231 78762 1⁄2 1588
––
72" 180086 1⁄2 219736 91468 1727
–
–
78" 195090 228639 99174 1880
–
–
84" 210096 243842 106780 2032
–
–
88" 2200–
––
––
–
–
–
ASME Class 300
Size
A
B
C
Weight
inmminmminmmin mmlbs.kg.
12" 30020 1⁄2 5217 1⁄8 18111 3⁄8289 465211
14" 35023 5848 3⁄4 22212 1⁄2318 593269
16" 400 25 1⁄2 6489 1⁄8
232 14 3⁄8365 771 350
18" 45028 71110 3⁄8 26416 1⁄8409 970440
20" 500 30 1⁄2 77511 1⁄2 29217 7⁄8 4541078 488
24" 60036 91412 1⁄2 31822 1⁄8 5621516 686
30" 75043 109214 1⁄2 36828 3⁄4 730 31001406
36" 90050 127019 48335
864 4650 2109
42" 1050 50 3⁄41289 22 3⁄8 56841 1041 8670 3932
48" 1200 57 3⁄4 1467 24 3⁄4 629 47 1193 99504513
54" 1350 65 1⁄4 1657 27 1⁄4 692 51 1⁄2 1308
–
–
60" 1500 71 1⁄41809 32 1⁄2 82656 1422
–
–
Flow Direction
ASME Class 600
Size
A
B
C
Weight
inmminmminmmin mmlbs.kg.
12" 30022 5599
229 11 3⁄8 289 612277
14" 350 23 3⁄4 60310 3⁄4 27312 1⁄2 318 826375
16" 40027 68512 305 14 3⁄8 365 951430
18" 450 29 1⁄4 74314 1⁄4 36216 1⁄8 4091433650
20" 50032 81314 1⁄2 36818 457 1763 800
24" 60037 94017 1⁄4 43821 9⁄16 548 27551250
30" 750 44 1⁄21130 19 7⁄8 50528 3⁄4 730 50702300
36" 900 51 3⁄41314 25
635 33 3⁄4 857 76053450
42" 1050 55 1⁄41403 27 37⁄64701 39 1⁄2 1003 99854529
48" 1200 62 3⁄41594 31
787 36
914 12600 5715
ASME Class 900
Size
A
B
C
Weight
inmminmminmmin mmlbs.kg.
12"
300 24
610 11 1⁄2292 10 1⁄8 257 770349
14" 35025 1⁄4 64114 35611 1⁄2 2921240561
16" 40027 3⁄4 70515 1⁄8 384 12 7⁄8 3271653750
18" 45031
787 17 3⁄4451 14 1⁄2 368 23141050
20" 50033 3⁄4 85717 3⁄4 451 18
457 28661300
24" 60041 1041 19 1⁄2495 21 1⁄2 546 41751893
30" 75048 1⁄2123225 63526 660 65002948
36" 90057 1⁄2146128 71131 787
– –
42" 105061 1⁄21562 31 1⁄2800 36
914
– –
Notes:
• Sizes not available in double flange design are offered as lug body design, see page 16.
• Please consult factory for other sizes and pressure classes available.
• Consult factory for dimensions and weights not shown.
15
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Dimensions
Style H Lug Retainerless
Lug Style valves cover the bolting the entire length of the body. Lug valves are furnished in scallop and full body designs.
Scallop is furnished whenever possible to keep weight to a minimum. These valves are standard retainerless design. Lug
valves are furnished with thru-hole bolting in accordance with API 594. Threaded bolt holes are available but non standard
as valve is not designed nor should be used for dead-end service.
B
Thru hole
A
C
Minimum
Flange
Bore
Thru hole
Scallop
Full Body
Pin must be vertical
for horizontal flow.
ASME Class 150
Size
A
B
C
Weight
inmminmmin mminmmlbs.kg.
2" 506 152 2 3⁄8 601 15⁄1649 17 8
2 1⁄2"657 178 2 5⁄8 672 11⁄3260 17 8
3" 807 1⁄21912 7⁄8 732 29⁄32744420
4" 1009 229 2 7⁄8 733 53⁄64974420
5" 12510 254 3 3⁄8 864 13⁄16 122481⁄222
1467735
6"15011 279 3 7⁄8 985 49⁄64
ASME Class 300
Size
A
B
C
Weight
inmminmmin mminmmlbs.kg.
2" 506 1⁄21652 3⁄8 601 15⁄1649 18 8
2 1⁄2"657 1⁄21912 5⁄8 672 11⁄32602210
3" 808 1⁄42102 7⁄8 732 29⁄32743014
4" 10010 254 2 7⁄8 733 53⁄64974420
1225123
5" 12511 279 3 3⁄8 864 13⁄16
6" 15012 1⁄2318 3 7⁄8 985 49⁄64
1468438
8" 20015
381 5
1277 5⁄8 194163 74
10" 250 17 1⁄2445 5 3⁄4 1469 9⁄16243270123
ASME Class 600
Size
A
B
C
Weight
inmminmmin mminmmlbs.kg.
2" 506 1⁄21652 3⁄860 1 15⁄1649 18 8
2 1⁄2" 657 1⁄21912 5⁄867 2 11⁄32602210
3" 808 1⁄42102 7⁄873 2 29⁄32743014
4" 10010 3⁄4273 3 1⁄879 3 53⁄64976027
6" 15014 356 5 3⁄8 1365 49⁄64146 183 83
8" 20016 1⁄2 4196 1⁄2 1657 5⁄8 194295134
10" 25020 508 8 3⁄8 2139 9⁄16 243540245
• Consult factory for additional sizes and pressure classes.
Flow Direction
ASME Class 900
Size
A
B
C
Weight
inmminmmin mminmmlbs.kg.
2" 5081⁄2 2162 3⁄4
701 11⁄1643 37 17
832 5⁄8 6757 26
3" 8091⁄2 2413 1⁄4
4" 100111⁄2 292 4
1023 7⁄16 8798 45
6" 15015 381 6 1⁄4 1595 3⁄16 132252 114
8" 200181⁄2 4708 1⁄8 2066 13⁄16 173 441
200
10" 250211⁄2546 9 1⁄2 2418 1⁄2 216787 357
ASME Class 1500
Size
A
B
C
Weight
inmminmmin mminmmlbs.kg.
2" 508 1⁄22162 3⁄4
701 11⁄1643 37 17
1
1
3" 8010 ⁄2267 3 ⁄4
832 5⁄8 6770 32
4" 10012 1⁄4311 4
1023 7⁄16 87112 51
6" 15015 1⁄2394 6 1⁄4 1595 3⁄16 132262 119
8" 20019
4838 1⁄8 2066 13⁄16173 488 221
10" 25023 584 9 3⁄4 2488 1⁄2 216917 416
12" 30026 1⁄2673 12
30510 1⁄8 2571425 646
14" 35029 1⁄2749 14
35611 1⁄2 2922045 928
16" 40032 1⁄2 82615 1⁄8 38412 13⁄16325 2600 1179
18" 45036 914 18 7⁄16 46813 3⁄4 349 38831761
20" 50038 3⁄4984 21
53314 3⁄4 3485700 2580
24" 60046 116822
55915 1⁄8 3847150 3236
ASME Class 2500
Size
A
B
C
Weight
inmminmmin mminmmlbs.kg.
2" 5091⁄4 2352 3⁄4
701 11⁄1643 48 22
3" 8012 305 3 3⁄8
862 5⁄8 6793 42
4" 10014 356 4 1⁄8 1053 7⁄16 87152 69
6" 15019 483 6 1⁄4 1595 3⁄16 132386 175
8" 20021 3⁄4 5528 1⁄8 2066 13⁄16173 682 309
10" 25026 1⁄2673 10
2548 1⁄2 2161421 645
12" 30030 762 12
30510 1⁄8 2572248 1020
16
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Dimensions
Style X Extended Body Wafer Check
The "Extended Body" version of
the Duo-Chek ® was designed for
extremely fast opening conditions.
These types of applications are
generally associated with compressed
gas or steam that causes damage
from the explosive opening effect on
the closure mechanism. This damage
can render them inoperative. This is
especially true with slow response
valves such as swing and titling disc
check valves.
The Style X body design has special geometry and plate configuration to
allow each plate to strike the stop pin in its center of percussion. To absorb
high impacts, the stop pin and hinge lugs are oversized.
Installation Dimensions
Pressure Classes 150 – 2500
ASME Class 150
Size
A
B
C
Weight
inmminmmin mminmmlbs.kg.
10" 250 13 3⁄8 3407 1⁄4 18410 3⁄4 273166 75
22912 3⁄4 324244 111
12" 300 16 1⁄8 4109
14" 350 17 3⁄4 4518 3⁄8 21314
356 260 118
16" 400 20 1⁄4 5149 1⁄2 24116
406 345 157
457 427 194
18" 450 21 5⁄8 54910 3⁄8 26418
20" 500 23 7⁄8 60611 3⁄4 29820
508 548 249
610 874 396
24" 600 28 1⁄4 71813 3⁄4 34924
26" 650 30 1⁄2 77518
45726
6601741 790
30" 750 34 3⁄4 88318
45730
7621544 700
53032
8131638 743
32" 80037 94020 7⁄8
36" 900 41 1⁄4104821 7⁄8 55636
9142750 1247
42" 105048 121925 3⁄4 65442 10673862 1752
48" 1200 54 1⁄2138430 7⁄8 78448 12196000 2722
54" 135061 155032 3⁄4 83254 13727462 3385
ASME Class 300
Size
A
B
C
Weight
inmminmmin mminmmlbs.kg.
10" 250 14 1⁄4362 7 1⁄4 18410 3⁄4 273166 75
12" 300 16 5⁄8 422 9
22912 3⁄4 324244 111
14" 350 19 1⁄8486 10 1⁄4 26014
356 407 185
16" 400 21 1⁄4540 11 1⁄8 28316
406 533 242
18" 450 23 1⁄2597 12 1⁄2 31818
457 698 317
20" 500 25 3⁄4654 13 3⁄4 34920
508 900 408
24" 600 30 1⁄2
775
16406
24610
1446
656
28" 700 35 7⁄8 911 20 1⁄4
514 28
711 1992904
1
5
7622457 1115
30" 75037 ⁄2953 20 ⁄8 52430
36" 90044 1118 25
63536
9143947 1790
42" 1050 50 3⁄41289 31 7⁄8 81042 10676523 2959
3
889 48
1219 7483 3394
48" 120058 ⁄41492 35
Consult factory for additional sizes and pressure classes.
Typical applications include centrifugal compressor discharge where
compressors are subject to "surging", air separation plants, pipelines where
compressors are mounted in parallel, and steam extraction. Style X DuoChek® valves are generally not required for liquid applications.
B
C
Pin must be vertical
for horizontal flow.
A
Extended Body Duo-Chek Plate
Regular Body Duo-Chek Plate
Flow Direction
ASME Class 600
Size
A
B
C
Weight
inmminmmin mminmmlbs.kg.
10" 250 15 3⁄4400 9 7⁄8 25110 3⁄4273285130
12" 30018 45711 5⁄829512 3⁄4324366166
324 14356485220
14" 350 19 3⁄8492 12 3⁄4
16" 400 22 1⁄4565 14 1⁄2
368 16406705320
425 184571057480
18" 450 24 1⁄8613 16 3⁄4
20" 500 26 7⁄8683 17 1⁄2
445 205081531695
24" 600 31 1⁄8791 21 1⁄4540 24 61022401016
914 23
584
28
711 32771486
28" 700 36
1
3
30 76237461699
30" 75038 ⁄4972 26 ⁄4680
113031 787 36 91470003175
36" 900 44 1⁄2
3
1
1019 48121999724523
48"1200 54 ⁄41391 40 ⁄8
ASME Class 900
Size
A
B
C
Weight
inmminmmin mminmmlbs.kg.
10" 250 17 1⁄8 43510 1⁄4 26010 3⁄4273462210
12" 300 19 5⁄8 49812 13⁄16325 12 3⁄4324605274
14" 350 20 1⁄2 52114 5⁄8 37114 3561030 467
16" 400 22 5⁄8 57515 1⁄2 39416 4061553 705
20" 500 27 1⁄2 69919 1⁄2 49520 5081583 718
24" 600 33
838 22 1⁄4 56524 61030291374
30" 750 39 3⁄41010 28 7⁄8 73430 76263102862
ASME Class 1500
Size
A
B
C
Weight
inmminmmin mminmmlbs.kg.
10" 250 17 1⁄8435 11 1⁄2 29210 3⁄4 273476 216
12" 300 20 1⁄2521 13 7⁄8 35312 3⁄4 324805 365
14" 350 22 3⁄4578 14 5⁄8 37114
3561080 490
16" 400 25 1⁄4641 16 1⁄2 41916
4061530 694
18" 450 27 3⁄4705 20 1⁄4 51418
4572109 957
20" 500 29 3⁄4756 21 7⁄8 55620
5082376 1077
24" 600 35 1⁄2902 24 7⁄8 63224
6104329 1964
ASME Class 2500
Size
A
B
C
Weight
inmminmmin mminmmlbs.kg.
10" 250 18 3⁄4 47611 1⁄2 29210 3⁄4273577 262
12" 300 21 5⁄8 54913 7⁄8 35212 3⁄4324598 271
17
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DIN Wafer Valve Outside Diameter of Body
PN 6, 10, 16 (ASME Class 150)
Size
PN
A (DIN)*
in
mm
mm in
2"50 6
983 27⁄32
10109
4 9⁄32
16
109 4 9⁄32
2 1⁄2"65
6
118 4 5⁄8
10129
5 1⁄16
16
129 5 1⁄16
3" 80
6
134 5 1⁄4
10144
5 21⁄32
16
144 5 21⁄32
4" 100
6
154 6 1⁄16
10164
6 7⁄16
16
164 6 7⁄16
5" 125
6
184 7 7⁄32
10194
7 5⁄8
16
194 7 5⁄8
6" 150
6
209 8 7⁄32
10220
8 21⁄32
16
220 8 21⁄32
8" 200
6
264 10 3⁄8
10275
10 13⁄16
16
275 10 13⁄16
10" 250
6
319 12 17⁄32
10330
13
16
331 13 1⁄32
12" 300
6
375 14 3⁄4
10380
14 15⁄16
16
386 15 3⁄16
14" 350
6
425 16 23⁄32
10440
17 5⁄16
16
446 17 17⁄32
16" 400
6
475 18 11⁄16
10491
19 5⁄16
16
498 19 19⁄32
18" 450
10
541 21 9⁄32
16
55821
20" 500
6
580 22 13⁄16
10596
23 7⁄16
16
620 24 13⁄16
24" 600
6
681 26 25⁄32
10698
27 15⁄32
16
737 29
28" 700
6
786 30 15⁄16
10813
32
16
807 31 3⁄4
32" 800
6
893 35 5⁄32
10920
36 7⁄32
16
914 35 15⁄16
36" 900
6
993 39 3⁄32
101020 40 5⁄32
16
1014 39 29⁄32
40" 1000
6
1093 43 1⁄32
101127 44 3⁄8
16
1131 44 1⁄2
48" 1200
6
1310 51 9⁄16
101344 52 15⁄16
16
1345 52 15⁄16
PN 25, 40 (ASME Class 300)
Size
PN
A (DIN)*
mm in
in mm
2" 50 25 1094 9⁄32
40 1094 9⁄32
2 1⁄2"65
25
129 5 1⁄16
40 1295 1⁄16
3" 80
25
144 5 21⁄32
40 1445 21⁄32
4" 100
25
170 6 11⁄16
40
1706 11⁄16
5" 125
25
196 7 11⁄16
40 1967 11⁄16
6" 150
25
226 8 7⁄8
40 2268 7⁄8
8" 200
25
286 11 1⁄4
40 29311 17⁄32
10" 250
25
343 13 1⁄2
40 35513 31⁄32
12" 300
25
403 15 27⁄32
40
42016 17⁄32
14" 350
25
460 18 3⁄32
40 47718 3⁄4
16" 400
25
517 20 11⁄32
40 54921 19⁄32
18" 450
40
574 22 19⁄32
25
627 24 11⁄16
20"500
40 63124 13⁄16
24" 600
25
734 28 7⁄8
40 75029 1⁄2
PN 64, 100 (ASME Class 600)
Size
PN
A (DIN)*
mm in
in mm
2" 50 64 1154 1⁄2
100 1214 3⁄4
2 1⁄2"65
64
140 5 1⁄2
100
1465 3⁄4
3" 80
64
150 5 29⁄32
100 1566 1⁄8
4" 100
64
176 6 29⁄32
100 1837 3⁄16
5" 125
64
213 8 3⁄8
100 2208 27⁄32
6" 150
64
250 9 13⁄16
100 26010 7⁄32
8" 200
64
312 12 9⁄32
100
32712 27⁄32
10" 250
64
367 14 7⁄16
100 39415 1⁄2
12" 300
64
427 16 25⁄32
100 46118 1⁄8
14" 350
64
489 19 1⁄4
100 51520 1⁄4
16" 400
64
546 21 15⁄32
100 57522 5⁄8
20" 500
64
660 25 31⁄32
100
708 27 27⁄32
24" 600
64
768 30 7⁄32
100
819 32 7⁄32
PN 160 (ASME Class 900)
Size
PN
A (DIN)*
mm in
in mm
2" 50 160 1214 3⁄4
2 1⁄2"65 160
146 5 3⁄4
3" 80
160
156 6 1⁄8
4" 100 160
183 7 3⁄16
5" 125 160
220 8 27⁄32
6" 150 160
260 10 7⁄32
8" 200 160
327 12 27⁄32
10" 250
160
391 15 3⁄8
12" 300
160
461 18 1⁄8
PN 250 (ASME Class 1500)
Size
PN
in mm
2" 50 250
2 1⁄2"65 250
3" 80
250
4" 100 250
5" 125 250
6" 150 250
8" 200 250
10" 250
250
12" 300
250
A (DIN)*
mm in
1264 15⁄16
156 6 1⁄8
173 6 25⁄32
205 8 1⁄16
245 9 5⁄8
287 11 9⁄32
361 14 3⁄16
445 17 1⁄2
542 21 5⁄16
PN 320 (ASME Class 2500)
Size
PN
in
mm
2" 50 320
2 1⁄2"65 320
3" 80
320
4" 100 320
5" 125 320
6" 150 320
8" 200 320
10" 250
320
A (DIN)*
mm in
1365 11⁄32
173 6 25⁄32
193 7 19⁄32
232 9 1⁄8
277 10 29⁄32
314 12 11⁄32
401 15 25⁄32
492 19 11⁄32
*Dimension A applies to drawing on page
13. Other dimensions for ASME Classes
shown apply to these valves with DIN
outside diameters.
18
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Stud Selection
Wafer Styles G (Retainered) and H (Retainerless)
Raised face flanges
C
Min
B
D
Min
Ring joint flanges
ASME Class 125 (Cast Iron valves only)
ASME Class 150
Valve
No. of
B
C
Size
Studs Bolt Diameter Flat Face
inmm inmm inmm
2"5045⁄8
16
5 1⁄4
133
2 1⁄2"65 4 5⁄8165 3⁄8136
3"
80
4 5⁄8165 5⁄8143
4" 100
8 5⁄8166 1⁄4159
5" 125
8 3⁄4196 3⁄4171
6" 150
8 3⁄4197 178
8" 200
8 3⁄4198 203
7
10" 250 12
⁄8229 229
7
12" 300 12
⁄82210 1⁄2267
14" 350 12
1
25
12 3⁄4324
16" 400 16
1
25
13 1⁄4337
18" 450 16
1 1⁄829 14 1⁄4362
20" 500 20
1 1⁄829 15
381
24" 600 20
1 1⁄432 16
406
1
3
26" 650 24
1 ⁄432 22 ⁄4578
1
30" 750 28
1 ⁄432 20
508
36" 900 32
1 1⁄238 23 1⁄2597
42" 1050 36
1 1⁄238 26 1⁄2673
48" 1200 44
1 1⁄238 30 1⁄2775
54" 1350 44
1 3⁄444 32 1⁄4819
60" 1500 52
1 3⁄444 –
–
66" 1650 52
1 3⁄444 –
–
1
72" 1800 60
1 ⁄829 –
–
78" 1950 56
2
51
–
–
84" 2100 64
2 1⁄8 54–
–
88" 2200 64
2 1⁄4 57–
–
Valve
No. of
B
C
D
Size
Studs Bolt Diameter Raised Face Ring Joint
inmm inmm inmminmm
2" 50
4 5⁄8
16
5 3⁄4
1466 1⁄4
159
2 1⁄2"65 45⁄8 166 1⁄4 1597
178
3" 80
4 5⁄8 166 3⁄4 1717 1⁄4
184
4" 100
8 5⁄8 166 3⁄4 1717 1⁄4
184
5" 125
8 3⁄4 197 1⁄2 1918
203
6" 150
8 3⁄4
19 8
2038 1⁄2
216
3
1
8" 200
8 ⁄4 199 ⁄2 24110
254
7
1
10" 250
12 ⁄8 2210 ⁄2 26711
279
7
1
12" 300
12 ⁄8
22 12 30512 ⁄2 318
14" 350
12 1
25
12 3⁄4 32413 1⁄4 337
16" 400
16 1
25
13 1⁄4 33713 3⁄4 349
18" 450
16 1 1⁄82914 1⁄4 36214 3⁄4 375
20" 500
20 1 1⁄8 29 15 38115 1⁄2 394
24" 600
20 1 1⁄43215 3⁄4 40016 1⁄4 413
26" 650
24 1 1⁄4
32
22 3⁄4
57823 1⁄4 591
30" 750
28 1 1⁄43221 1⁄4 54022 3⁄4 578
36" 900
32 1 1⁄23826 1⁄4 66739 679
42" 1050
36 1 1⁄23828 1⁄2724–
–
48" 1200
44 1 1⁄23833 838
–
–
54" 1350
44 1 3⁄44435 889
–
–
60" 1500
52 1 3⁄4
44
–
– –
–
66" 1650
52 1 3⁄4
44
–
– –
–
72" 1800
60 1 1⁄8
29
–
– –
–
78" 1950
56 2
51
–
– ––
84" 2100
64 2 1⁄8
54–
–
––
88" 2200
64 2 1⁄4
57–
–
––
Stud dimensions apply to styles G & H for Lug style thru-hole bolting design.
19
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Stud Selection
Wafer Styles G (Retainered) and H (Retainerless)
ASME Classes 250 (Cast Iron valves only) & 300
ASME Class 900
Valve
No. of
B
C
D
Size
Studs Bolt Diameter Raised Face Ring Joint*
inmm inmm inmminmm
5
2" 50
8
⁄8
16
6
1526 3⁄4171
2 1⁄2"65 8 3⁄4 196 3⁄4 1717 1⁄2191
3
3" 80
8
⁄4 19 7
1788 203
3
4" 100
8
⁄4 197 1⁄2 1918 1⁄4210
3
1
5" 125
8
⁄4 198 ⁄4 2109 229
3
6" 150 12
⁄4 19 9
2299 3⁄4248
7
8" 200 12
⁄8 2210 1⁄2 26711 1⁄4286
10" 250 16
1
25 12 1⁄4 31113 330
12" 300 16
1 1⁄8 29 14 35614 3⁄4375
14" 350 20
1 1⁄8 29 16 40616 3⁄4425
16" 400 20
1 1⁄4 32 17 43217 3⁄4451
18" 450 24
1 1⁄4 3218 1⁄2 47019 3⁄4489
20" 500 24
1 1⁄4 3219 3⁄4 50220 1⁄2521
24" 600 24
1 1⁄2 3821 3⁄4 55222 3⁄4578
26" 650 28
1 5⁄8 4124 1⁄4
61625 1⁄4 641
30" 750 28
1 3⁄4 4427 1⁄4 69228 1⁄2724
36" 900 32
2
51 32 1⁄4 81915 1⁄2851
42" 1050 36
2
51 36 1⁄2 92737 3⁄4959
48"
120040 2 51401016
-
-
Valve
No. of
B
C
D
Size
Studs Bolt Diameter Raised Face Ring Joint
inmm inmm inmminmm
2" 50
8 7⁄8
22
8 3⁄4
2228 3⁄4222
2 1⁄2"65 8 1
25 9 3⁄4 2489 3⁄4248
3" 80
8 7⁄8 229 1⁄4 2359 1⁄4235
4" 100
8 1 1⁄8 29 11 27911 279
6" 150 12 1 1⁄8 29 14 35614 1⁄4362
8" 200 12 1 3⁄8 35 17 43217 1⁄4438
10" 250
16
1 3⁄8 35 19 48319 483
12" 300
20
1 3⁄8 3521 3⁄4 55221 3⁄4552
14" 350
20
1 1⁄2 38 25 63525 1⁄2648
16" 400
20
1 5⁄8 4126 3⁄4 67927 686
18" 450
20
1 7⁄8 4830 3⁄4 78131 1⁄2800
20" 500
20
2
51 31 1⁄2 80032 1⁄4819
24" 600
20
2 1⁄2 6436 3⁄4 93337 1⁄4946
*Available in Class 300 only.
ASME Class 600
Valve
No. of
B
C
D
Size
Studs Bolt Diameter Raised Face Ring Joint
inmm inmm inmminmm
5
2"
50
8
⁄8
16
6 3⁄4
1717
178
2 1⁄2"65 8 3⁄4 197 1⁄2 1917 3⁄4197
3"
80
8 3⁄4
19 8
2038 1⁄4210
4" 100
8 7⁄8 229 1⁄4 2359 1⁄4235
5" 125
8
1
25 10 3⁄4 27311 279
6" 150 12
1
25 12 1⁄4 31112 1⁄2318
8" 200 12
1 1⁄8 2914 1⁄4 36214 1⁄2368
10" 250
16
1 1⁄4 32 17 43217 1⁄4438
12" 300
20
1 1⁄432
18457
18457
14" 350
20
1 3⁄8 3520 1⁄4 51420 1⁄2521
16" 400
20
1 1⁄2 3822 1⁄4 56522 1⁄2572
18" 450
20
1 5⁄8 4125 1⁄4 64125 1⁄2648
20" 500
24
1 5⁄8 41 26 66026 1⁄4667
24" 600
24
1 7⁄8 4830 1⁄4 76830 3⁄4781
26" 650
28
1 7⁄8 4831 1⁄2
80032
813
30" 750
28
2
51 34 1⁄4 87034 3⁄4883
1
1
36" 900
28
2 ⁄264411041
20 ⁄21060
42" 1050
28
2 3⁄470471194
47 1⁄21207
Stud dimensions apply to styles G & H for Lug style thru-hole bolting design.
ASME Class 1500
Valve
No. of
B
C
D
Size
Studs Bolt Diameter Raised Face Ring Joint
inmm inmm inmminmm
2"50 8 7⁄8
22
8 3⁄4
2228 3⁄4222
2 1⁄2"65 8 1
25 9 3⁄4 2489 3⁄4248
3" 80
8 1 1⁄8 2910 1⁄2 26710 1⁄2267
4" 100
8 1 1⁄4 32 12 30512 305
6" 150 12 1 3⁄8 3516 3⁄4 42516 3⁄4425
8" 200 12 1 5⁄8 4119 3⁄4 50220 1⁄4514
10" 250 12
1 7⁄8 4823 1⁄4 59123 1⁄2597
12" 300 16
2
51 27
686 27 3⁄4705
14" 350 16
2 1⁄4 5730 1⁄4 76831 1⁄4794
16" 400 16
2 1⁄2 64 33 83834 864
18" 450 162 3⁄4 7038 3⁄4 96539 900
20" 500 16
3
76 43 3⁄41111 44 3⁄41137
89
48 1219 49 1⁄41251
24" 600 163 1⁄2
ASME Class 2500
Valve
No. of
B
C
D
Size
Studs Bolt Diameter Raised Face Ring Joint
inmm inmm inmminmm
2"50 8 1
25
10
25410 254
2 1⁄2"65 8 1 1⁄8 2911 1⁄428611 1⁄4286
1
1
3" 80
8 1 ⁄4 3212 ⁄431112 1⁄2318
4" 100
8 1 1⁄2 3814 1⁄436214 3⁄4375
6" 150
8 2
51 20
508 20 1⁄2521
8" 200 12 2
51 23 3⁄460324 610
10" 250 12
2 1⁄2 6429 1⁄474330 1⁄4768
12" 300 12
2 3⁄4 7033 1⁄4 84534 1⁄4870
20
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Installation & Stud Selection API 6A
B
API Installation Dimensions - Class 3000
Size
A
B
C
Weight
in
inmmin mminmmlbs.kg.
2 1⁄16"5 5⁄8 1432 3⁄4 701 11⁄16 4314 6
2 9⁄16"6 1⁄2 1653 1⁄4 832 1⁄8 5416 7
3 1⁄8"6 5⁄8 1683 1⁄4 832 5⁄8 6725 11
4 1⁄16"8 1⁄8 2064
1023 7⁄16 8743 20
7 1⁄16"11 3⁄8289 6 1⁄4 1595 3⁄16 132110 50
9" 14 1⁄8359 8 1⁄8 2066 13⁄16 173219 99
11" 17 1⁄8435 9 3⁄4 2488 1⁄2 216397 180
13 5⁄8"19 5⁄849812 30510 1⁄8 257725 329
A
C
Minimum
Flange
Bore
API Installation Dimensions - Class 5000
API Installation Dimensions - Class 2000
Size
A
B
C
Weight
in inmmin mminmmlbs.kg.
2 1⁄16"4 3⁄8 1432 3⁄4 701 11⁄16 4314 6
2 9⁄16"5 1⁄8 1303 1⁄4 832 1⁄8 5416 7
3 1⁄8"5 7⁄8 1493 1⁄4 832 5⁄8 6724 11
4 1⁄16"7 5⁄8 1944
1023 7⁄16 8740 18
7 1⁄16"10 1⁄2267 6 1⁄4 1595 3⁄16 132115 52
9" 12 5⁄8321 8 1⁄8 2066 13⁄16 173229 104
11" 15 3⁄4400 9 1⁄2 2418 1⁄2 216388 176
13 5⁄8" 18 45711 1⁄2 29210 1⁄8 257540 245
Size
A
B
C
Weight
in
inmmin mminmmlbs.kg.
2 1⁄16"5 5⁄8 1432 3⁄4 701 11⁄16 4315 7
2 9⁄16"6 1⁄2 1653 1⁄4 832 1⁄8 5422 10
3 1⁄8"6 7⁄8 1753 3⁄8 862 5⁄8 6731 14
4 1⁄16"8 1⁄4 2104 1⁄81053 7⁄16 8749 22
7 1⁄16"11 1⁄8283 6 1⁄41595 3⁄16 132190 86
9"13 7⁄8352 8 1⁄82066 13⁄16 173285 129
11"17 1⁄8435 10 254 8 1⁄2 216502 228
NOTES: Dimensions for 10000 and 15000 ratings available on request.
Allowable leakage rates for API 6A (also API 6D) metal seated valves in accordance with API 598.
API Stud Selection - Class 3000
B
C
Min
API Stud Selection - Class 2000
Size
No. of
B
C
in Studsinmm inmm
5
2 1⁄16"8
⁄8
16
8
203
3
2 9⁄16"8
⁄4
199
229
3
3 1⁄8"8
⁄4
199 1⁄2241
7
4 1⁄16"8
⁄8
2211 1⁄2292
7 1⁄16" 12 1
2514 356
9"
121 1⁄8 2917 432
1
11" 161 ⁄4 3219 483
13 5⁄8" 201 1⁄4 3223 3⁄4546
Size
No. of
B
C
in Studsinmm inmm
7
2 1⁄16"8
⁄8
22 9 1⁄4
235
2 9⁄16"
8 1
2511 1⁄4286
7
3 1⁄8"8
⁄8
2211 1⁄2292
4 1⁄16"
81 1⁄829
12305
7 1⁄16" 121 1⁄8
2915 1⁄4387
9"
121 3⁄8
3518 3⁄4476
11" 161 3⁄8
3520
508
13 5⁄8" 201 3⁄8
3521 1⁄2591
API Stud Selection - Class 5000
Size
No. of
B
C
in Studsinmm inmm
7
2 1⁄16"8
⁄8
22
9 1⁄4
235
2 9⁄16"
8 1
2511 1⁄4286
3 1⁄8"
81 1⁄8 2912 305
4 1⁄16"
81 1⁄4 3213 330
7 1⁄16" 121 3⁄8 3518 3⁄4476
9"
121 5⁄8 4121 533
11"
121 7⁄8
4824 1⁄2622
21
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Stud Selection - Pressure Classes 150 - 2500
Style X Extended Body Wafer Check
Raised face flanges
C
Minimum
ASME Stud Selection Class 600
B
D
Minimum
Ring joint flanges
ASME Stud Selection Class 150
Valve
No. of
B
C
D
Size
Studs Bolt Diameter Raised Face Ring Joint
inmm inmm inmminmm
10" 250
12 7⁄8
22 12
30512 1⁄2318
12" 300
12 7⁄8
22 14
35614 1⁄2368
14" 350
12 1
25 14
356 14 1⁄2368
1914 3⁄4 37515 1⁄4387
16" 400
16 3⁄4
18" 450
16 1 1⁄8 2916 3⁄4 42517 1⁄4438
20" 500
20 1 1⁄8 2918 1⁄4 46418 3⁄4476
24" 600
20 1 1⁄4 2920 3⁄4 52721 1⁄4540
26" 650
24 1 1⁄4 3226 3⁄4 67927 1⁄4692
30" 750
28 1 1⁄4 3227 1⁄4 69227 3⁄4705
32" 800
28 1 1⁄2
38 32
169032 3⁄4832
36" 900
32 1 1⁄2 3232 1⁄4 81932 3⁄4832
42" 1050
36 1 1⁄2 3837 1⁄4 946-
48" 1200
44 1 1⁄2 3843 1⁄4 1099-
54" 1350
44 1 3⁄4 4443 1⁄2 1105-
ASME Stud Selection Class 300
Valve
No. of
B
C
D
Size
Studs Bolt Diameter Raised Face Ring Joint
inmm inmm inmminmm
10" 250 16
1
25 13 3⁄4 34914 1⁄2368
12" 300 16
1 1⁄8 2916
40616 3⁄4425
1
1
14" 350 20
1 ⁄8 2917 ⁄2 44518 1⁄4464
7
16" 400 20
⁄8
2218 1⁄2 47019 483
18" 450 24
1 1⁄4 3220 3⁄4 52721 1⁄2546
20" 500 24
1 1⁄4 3222
64122 3⁄4578
24" 600 24
1 1⁄2 2915 1⁄4 64826 1⁄4667
28" 700 28
1 5⁄8 4131
78731 1⁄2800
30" 750 28
1 3⁄4 4432 1⁄4 81933 1⁄2851
36" 900 32
2
51 38 1⁄2 978-
42" 1050 32
2
51 47 1⁄2 1206-
48" 1200 40
2
51 50 1⁄4 1276-
-
Valve
No. of
B
C
D
Size
Studs Bolt Diameter Raised Face Ring Joint
inmm inmm inmminmm
10"250161 1⁄4 3218 1⁄4464 18 3⁄4476
12"300201 1⁄4 3220 1⁄2521 20 3⁄4527
14"350201 3⁄835
22559
22559
16"400201 1⁄8 2924 1⁄2622 24 1⁄2622
18"450201 5⁄8 4130 762 30 1⁄4768
20"500241 5⁄8 4129 737 29 1⁄2743
24"600241 7⁄8 4834 1⁄4870 34 3⁄4883
28"700282
5136 1⁄2927 37 940
30"750282
5142106742 1⁄21080
36"900282 1⁄2 6447 1194 -
48"
1050322 3⁄4 7062 1574 -
-
ASME Stud Selection Class 900
Valve
No. of
B
C
D
Size
Studs Bolt Diameter Raised Face Ring Joint
inmm inmm inmminmm
10"250161 3⁄8 3519 1⁄2 49519 3⁄4502
12"300201 3⁄8 35 23
58423 1⁄4591
14"350201 1⁄2 3825 3⁄4 65426 1⁄4667
16"400201 1⁄4 3226 3⁄4 67927 686
20"500202
5133 1⁄4 84434 864
24"600202 1⁄2 6439 3⁄4 101040 3⁄41035
30"750203
7648 1219
48 1⁄21232
ASME Stud Selection Class 1500
Valve
No. of
B
C
D
Size
Studs Bolt Diameter Raised Face Ring Joint
inmm inmm inmminmm
10"250 12 1 7⁄8 48 25
63525 1⁄4641
12" 300
16 2
51
29
737 29 1⁄2749
14" 350
16 2 1⁄457 31 1⁄4 79432 1⁄4819
16" 400
16 1 1⁄2 38 34
86435 889
18" 450
16 2 3⁄470 39 3⁄4 101041 1041
20" 500
16 3
76
43
1092 44
1118
24" 600
16 3 1⁄2 89 49 124549 1⁄41251
ASME Stud Selection Class 2500
Valve
No. of
B
C
D
Size
Studs Bolt Diameter Raised Face Ring Joint
inmm inmm inmminmm
10"250 12 2 1⁄2 64 31
78731 3⁄4806
12" 300
12 2 3⁄470 35 1⁄2 90236 1⁄2927
22
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Technical Data
Valve Coefficient Cv and Average
Spring Force (Class 125 - 300)
Valve Size
in
mm
2"
50
2 ½"
65
3"
80
4"
100
5"
127
6"
150
8"
200
10"
250
12"
300
14"
350
16"
400
18"
450
20"
500
24"
600
30"
750
36"
900
42"
1050
48"
1200
54"
1350
60"
1500
66"
1650
72"
1800
Pressure Loss Information
• The curves show pressure loss available with the Duo-Chek® in
horizontal flow.
Spring Force
(psi)
0.23
0.26
0.21
0.22
0.18
0.14
0.19
0.18
0.17
0.15
0.16
0.15
0.13
0.10
0.08
0.08
0.05
0.06
-
Cv
75
95
191
377
483
821
1,590
2,920
4,470
5,870
8,690
10,940
14,290
23,000
37,200
59,000
92,000
126,000
186,000
217,000
280,000
350,000
• Duo-Chek® valves should be installed in horizontal flow with pins
vertical for best performance. For other installations, contact the
factory.
• Each piping system has a unique geometry which should be evaluated
whenever the liquid media velocity exceeds 8 feet/second (2.4m/sec)
through a swage or expansion (15° or greater included angle) directly
upstream of the valve. Where practicable, for maximum service
life, and based on actual service, a minimum of one (1) to five (5)
pipe diameters distance should be maintained between the valve
and the pump discharge and pipe fittings (swages or expansion).
• Systems with drastic flow decelerations may require higher torque
springs for faster valve response and to reduce water hammer for
non-slam applications. Please consult the factory.
• Coefficients for sizes above 72" please consult factory.
• Spring Force is an estimate of the pressure required to overcome the spring when valve is closed. This is not exact as valve cannot be used as a relief valve.
• Valves 6" and larger have independent springs.
• We can evaluate Duo-Chek ® valves relative to your system
behavior.
66"
72"
60"
48"
54"
42"
36"
30"
24"
20"
16"
18"
14"
21
2" V
ALV
3.0
2.0
20000
30000
40000
50000
60000
70000
100000
200000
300000
400000
500000
600000
700000
1000000
1262
1892
2523
3154
3785
4416
6308
12616
18924
25232
31540
37848
44156
63080
LITERS PER SECOND
10000
378
442
315
252
189
126
63
44
38
32
25
19
13
6
3.8
4.4
3.2
2.5
1.9
1.3
0.6
GALLONS PER MINUTE
631
6000
7000
5000
4000
3000
2000
700
0.1
1000
0.03
LOSSES SHOWN BASES ON WATER AT 60°F WITH SP. GR. OF 1.0
600
0.2
500
0.06
400
0.3
300
0.4
0.09
200
0.5
0.12
100
0.7
0.6
0.15
60
70
1.0
50
0.3
0.21
0.18
40
0.6
4.0
30
0.9
5.0
20
1.2
HEAD LOSS IN FEET OF WATER
1.5
7.0
6.0
10
HEAD LOSS IN METERS OF WATER
10
3.0
2.1
1.8
12"
20
10"
6.1
8"
30
5"
40
9.1
6"
50
12.2
4"
70
60
15.2
3"
21.3
18.3
E
100
/2"
Pressure Loss Chart (Class 125 - 300)
30.5
23
www.craneenergy.com
Additional Engineered Check Products
Noz-Chek®
Full Body Nozzle Check Valves
• Sizes 2" – 84"
• ASME Classes 150 – 4500
• Flanged, Hub-End, Weld-End
• Iron, Steel, and Stainless Steel
• ASME, DIN, JIS Standards
Uni-Chek®
Single-Disc Check Valves
• Sizes 2" – 36"
• ASME Classes 125 – 300
• Flanged, Plain, or Serrated Ends
• Cast Iron, Carbon Steel, and Stainless Steel
• Variety of external shaft options available
Compac-Noz®
Compact Body Nozzle Check Valves
• Sizes 12" – 60"
• ASME Classes 150 – 4500
• Flanged, Hub-End, Weld-End
• Iron, Steel, and Stainless Steel
• ASME, DIN, JIS Standards
Krombach®
Steam Extraction Check Valves
• Sizes 6" – 72"
• ASME Classes 150 – 300
• Double Flanged & Butt Weld Ends
• Steel, Stainless Steel and Welded Design
24
www.craneenergy.com
Notes
25
www.craneenergy.com
Notes
26
www.craneenergy.com
Notes
27
www.craneenergy.com
CRANE Energy Flow Solutions®
CRANE Energy Global Headquarters
Duo-Chek Customer Service
4526 Research Forest Drive, Suite 400
The Woodlands, Texas 77381 U.S.A.
Tel.: (1) 936-271-6500
Fax.: (1) 936-271-6510
www.craneenergy.com
Sydney, Australia Operations
Belfast, Northern Ireland Operations
146-154 Dunheved Circuit
6 Alexander Road
St. Mary's NSW 2760
Cregagh, Belfast BT6 9HJ
Tel: (61) 2-8889-0100
Tel: 44 (28) 9070 4222
Fax: (61) 2-9673-3870
Fax: 44 (28) 9040 1582
®
NUCLEAR
EG-DC-CT-EN-L16-16-1202 (CV-600)
www.flowoffluids.com
Crane Co., and its subsidiaries cannot accept responsibility for possible errors in catalogues, brochures, other printed materials, and website
information. Crane Co. reserves the right to alter its products without notice, including products already on order provided that such
alteration can be made without changes being necessary in specifications already agreed. All trademarks in this material are property of
the Crane Co. or its subsidiaries. The Crane and Crane brands logotype (Aloyco®, Center Line®, Compac-Noz®, Crane®, Duo-Chek®, Flowseal®,
Jenkins®, Krombach®, Noz-Chek®, Pacific Valves®, Stockham®, Triangle®, Uni-Chek®) are registered trademarks of Crane Co. All rights reserved.
© 2012 CRANE Energy Flow Solutions, www.craneenergy.com
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