... Materials:C.S,S.S,F.S CAST IRON CHECK VALVE Size:2"-32" Rating:CL150-CL2500 Materials:C.S,S ... ,CF8,CF8M,CF3,CF3M, A105,LF2,F304,F316,F304L,F316LDesign & Manufacture Std.: API608, ASME B16.34, API6D, BS5351 Face to Face ... ),Operated way: Lever, Gear, Pneumatic, Electric Acturtor CAST IRON CHECK VALVE