Cast Steel Swing Check Valves, lift check valves, piston check valves
Standard compliance
1) Design and manufacture: API6D, ANSI B16.34, BS1868
2) Test and inspection: API598
3) Face to face dimensions: ANSI B16.10
4) Flanged end: ANSI B16.5, B16.47 SERIES A & SERIES B
5) Butt-welding end: ANSI B16.25
6) Other standards (DIN, BS, JIS) is also available upon request.

Specifications:
1) Size: 2" to 36"
2) Class: 150LB to 2500LB
3) Type: Bolted Cover, Swing Disc, Threaded or Welded seat ring
4) Material: WCB, WCC, WC6, WC9, C5, C12, CF8, CF8M, CF3, CF3M, CN7M, LCB, LCC, DUPLEX SS, MONEL, ALLOY 20, CAST IRON etc
5) Operation: Lever with counterweight(option)