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Check Valves

Standard Materials
of Construction

ANSI 150 through 2500
Series Body &
Plate Castings

ASTM A216 Grade WCB
      Carbon Steel (0.22% Carbon Max.)

ASTM A217 Grade CA15
      Stainless Steel (410)

ASTM A351 Grade CF8M
      Stainless Steel (316)

BS 1400 Grade AB2 Aluminum Bronze
      (ANSI 150 & 300 Series)

Other materials available on request.

Valve Parts Explosion
Springs
Max. Operating
Temperature
316 SS
120°C (248°F)
Inconel 600
315°C (600°F)
Inconel X 750
537°C (1000°F)

Spring Selection
For temperatures up to 315°C (600°F), Inconel springs will be furnished as standard on all valves that are ordered with metal and Viton seats. For service conditions above 315°C (600°F), Inconel X springs should be specified.

For Seal Selection Refer to Ordering Information
Identification Code/Figure Number
Pressure Classification
Code
150
300
600
900
1500
2500
ANSI
150
300
600
900
1500
2500
Body and Flapper Materials
Code
Material
Specification
C
Carbon Steel
ASTM A216 Grade W3B
S
Stainless Steel
ASTM A351 CF8M
Seat Material
Code
Material
M
Metal
V
Viton
Spring Material
Code
Material
Max.Temp. F
I
Inconel
600°F
End Connectors
Code
Connection
R
Serrated Gasket Finish
L
Lug 2" - 10"
F
Flanged 12" - 24"
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