China Dual Plate Check Valve Manufacturer PipesTec offers Dual Plate Check Valve, ASTM A216 WCB, 8 Inch (DN 200), 400# (PN 64), Standard API 594.
China Wafer Check Valve Manufacturer PipesTec offers ASTM A216 WCB Wafer Check Valve, 2 Inch, API 594, Disc ASTM A351 CF8M, without surface treatment.