Design to API 594 and API 6D. Metal to Metal Seat tightness is as per API 598 and on specification to API 6D. 85 Deg Door opening of Dual Plate Check Valves, offers minimum pressure drop as....
Material : Generally, ASTM Gr. WCB, Gr. LCC, Gr. LCB, Gr. CF8, Gr. CF8M, Gr. CA15 but not limited. Other exotic material like, CF3M, CF8C, Monel, Hastealloy, Duplex, Super Duplex, Aluminum Bronze etc. on request.