Product-Shanghai B3 Valve Co.,LTD

Check Valve > Pressure Seal Check Valve

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Introduction Parameter

B3 pressure seal swing check valves are designed for high temperature, high pressure services mainly used in nuclear and fossil fuel power plant, refinery, petrochemical, etc. Compare with bolted bonnet gate valves, B3 pressure seal swing check valves are less complicated and can provide absolute excellent seal service with minimum maintenance.

Applicable Standard

Design Standard:     BS 1868, ASME B16.34, API 6D
Face to Face:          ASME B16.10, API 6D, EN 558, DIN3202
End Flange:             ASME B16.5, DIN 2501
Buttwelding Ends:    ASME B16.25
Inspection and Test: API 598

Products Range

Size:                     2" ~ 24"(DN50 ~ DN600)
Rating:                  ANSI 600lb ~ 2500lb
Body Materials:     Carbon Steel, Stainless Steel, Alloy Steel, Duplex Steel
Trim:                     Per API 600

Design Features

Full open design
PSB, pressure sealed bonnet
Absolute bonnet joint leak proof
Stellited sealing surface
Swing type disc design
Renewable or and welded seat
Flanged or buttwelding ends

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