Dimensions & Weights

Check Valves Class 800 Dimension Diagram
Valve Size (inch)1/43/81/23/411 1/41 1/22
Valve Size (mm)810152025324050
A (Reduced bore) (mm)--8090110127155170
A (Full bore) (mm)808090110127155170210
B (Reduced bore) (mm)--50567479100109
B (Full bore) (mm)5050567479100109135
C (Reduced bore) (mm)--912.517.522.52832
C (Full bore) (mm)6.5912.517.522.5283238
Weight (Reduced bore) ()--
Weight (Full bore) ()

Pressure / Temperature

Pressure / Temperature Rating

800 PSI @ 850oF
1975 PSI @100oF
Construction: BS5352
Socket weld:ASME B16.11
Threaded: ASME B1.20.1
Butt Weld: ASME B16.25
Test:BS 6755 (pt1) 

Test Pressures (Hydraulic)

Body:3000 PSI
Seat:2175 PSI 


There are no materials defined for this product.


Check Valves Class 800

Check Valves Class 800

  • Forged Check Valves available in reduced and Full Bore and with a a range of materials: Carbon Steel, Stainless Steel, alloys, and special alloys such as
  • Monel, Inonel, Incoloy, Hastelloy, Duplex, Superduple etc.
  • End connections available in Socket weld, NPT, Socket weld NPT, and Butt weld
  • Can be Supplied with welded bonnet, Y Check, Ball or Swing Type.
  • Valves are CE marked according to PED 97/23/CE and manufactured in according to ISO9001

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