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Custom Cast Check Valve

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  • Cast Check Valve
  • Cast Check Valve
  • Cast Check Valve
  • Cast Check Valve
  • Cast Check Valve
  • Cast Check Valve
  • Cast Check Valve
  • Cast Check Valve
  • Cast Check Valve
  • Cast Check Valve
  • Cast Check Valve
  • Cast Check Valve
  • Cast Check Valve
  • Cast Check Valve
  • Cast Check Valve
  • Cast Check Valve
  • Cast Check Valve
  • Cast Check Valve
  • Cast Check Valve
  • Cast Check Valve
  • Cast Check Valve
  • Cast Check Valve
  • Cast Check Valve
  • Cast Check Valve
  • Cast Check Valve
  • Cast Check Valve
  • Cast Check Valve
  • Cast Check Valve
  • Cast Check Valve
  • Cast Check Valve
  • Cast Check Valve
Check Valves

Cast Check Valve

PRODUCT RANGE

Sizes NPS 2 to NPS 48  DN50-DN1300

Class 150 to Class 2500  PN10-PN420

 

MATERIALS

Available in Casting (WCB, WC6, WC9, A350 LCB, CF8, CF8M, CF3, CF3M, 4A, 5A, 6A), Alloy 20, Monel, Inconel, Hastelloy

 

FEATURES

Full or Reduced Bore

RF, RTJ, or BW

Bolted Cover or Pressure Seal Cover

Swing or piston type

Renewable seat rings(Swing), Integral seat rings(Piston)

 

STANDARDS

Design & manufacture according to API 6D, BS 1868, DIN 3354

Face-to-face according to ASME B16.10, EN 558, DIN 3202

End Connection according to ASME B16.5 (RF & RTJ), ASME B16.25 (BW), DIN EN 1092, DIN EN 12627

Test & inspection according to API 598, DIN EN 12266

Also available per NACE MR-0175, NACE MR-0103

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  • The features of check valve

    Bolted Bonnet; Swing and lift disc; Metallic seating surfaces.

    Body and Bonnet Connection

    The body and bonnet of Class 150~Class 900 check valves are usually with studs and nuts. And the body and bonnet of Class 1500~Class 2500 check valves are usually of pressurized seal design.

    Body–To–Bonnet Joint

    Stainless steel + flexible graphite wounded gasket is used for Class 150 and Class 300 check valve; Stainless steel + flexible graphite wounded gasket is used for Class 600 check valve, and joint gasket is also optional for Class 600 check valve; Ring joint gasket is used for Class 900 check valve; Pressurized seal design is used for Class 1500~Class 2500 check valves.

    Seat

    For carbon steel check valve, the seat is usually forged steel. The sealing surface of the seat is spray welded with hard alloy specified by the customer. Renewable threaded seat is used for NPS≤10 check valves, and welded on seat can be also optional if being requested by the customer. Welded on seat is used for NPS ≥12 carbon steel gate valves. For stainless steel check valve, integral seat is usually adopted, or to weld hard alloy directly integrally. Threaded or welded on seat is also optional for stainless steel check valve if being requested by the customer.

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