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check valve
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Check Valve

Lift Check Valve
Class 150~600 Lift Check Valve Click for detail
Class 150~600, size: NPs 2 " ~ 12"
Basic Design: ANsI B16.34, Bs 1868
Face to face standard: ANsI B16.10, API 6D
Ends Connection: ANsI B16.5(RF), B.W. Ends to ANsI B16.25
Material: WCB, LCB, WC6, WC9, C12, C5, CF8, CF3, CF3M, and CF8M

Y-Pattern Piston Check Valve
Class 800 Y-Pattern Piston Check Valve Click for detail
Class 800, size: NPs 3/8" ~ 2"
Basic Design: ANsI B16. 34, API 600
Face to face standard: ANsI B16.10, API 6D
Ends Connection: ANsI B16.5(RF), B.W. Ends to ANsI B16.25
Material: A105, F22; F304, F304L, F316, F316L

Bolt Type Swing Check Valve
Class 800~1500 Bolt Type swing Check Valve Click for detail
Class 800~1500, size: NPs 3/8" ~ 2"
Basic Design: ANsI B16. 34, API 600
Face to face standard: ANsI B16.10, API 6D
Ends Connection: ANsI B16.5(RF), B.W. Ends to ANsI B16.25
Material: A105, F22; F304, F304L, F316, F316L

Flanged End Pressure-Seal Piston Check Valve
Class 900~2500 Flanged End Pressure-seal Piston Check Valve Click for detail
Class 900~2500, size: NPs 1/2" ~ 2"
Basic Design: AsME/ANsI B16.34; API 600; API 602
Face to face standard: ANsI16. 10, JIs B2002, AsME/ANsI B16. 5, AsME/ANsI B16. 25
Ends Connection: ANsI B16.11 (sW), ANsI B16.25 (BW), ANsI/AsME B1.20.1(NPT)
Material: LF2, LF3, F304, F304L, F316, F316L

Pressure Seal Check Valve
Class 900~2500 Pressure seal Check Valve Click for detail
Class 900~2500, size: NPs 2" ~ 16"
Basic Design: ANsI B16.34, Bs 1868
Face to face standard: ANsI B16.10, API 6D
Ends Connection: ANsI B16.5(RF), B.W. Ends to ANsI B16.25
Material: WCB, LCB, WC6, WC9, C12, C5, CF8, CF3, CF3M, and CF8M

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NVF was found in 1959, we are professional in manufacturing forged steel and cast steel valves, gate valve, globe valve, check valve, ball valve, butterfly valve, plug valve and so on.