Check Valve Manufacturer Valvesonly is one of the greatest Check Valve Manufacturer .Description: Body Material- Cast Iron and Cast Steel (LF2, A216, WCB, WCC, LCB, LCC, WC6, WC9), Ductile Iron, Stainless Steel [SS316, SS304, SS316L, SS904L, CF8, CF8M, F304, F316, F31L, F91), Duplex and Super duplex STEEL [ F51, F53, F55 ] Forged Steel A105, A105N, F11, F22, F304, F316, F91] , Alloy20 , Hastelloy ALBR. Size- ½” – 80” Class-150 – 2500; PN10 – PN-450 Ends-threaded, socket weld, butt weld, flanged, lug, wafer https://valvesonly.com/product-category/check-valve/