Detailed Product Description Product DescriptionCheck Valve Raw material: Carbon steel, alloy steel, stainless steel Valve material: WCB, A105, CF8, CF8M, CF3, CF3M, F304, F304L, F316, F316L, WC6, WC9, F11, C5, LCB, LCC, etc. Standards: API, DIN, GB, JIS, BS, etc. Connection end: RF, RTJ, BW, SW, NPT Pressure: 800LB-2500LB Size: 1/2"-2", DN15-DN50 Packing: Standard Export wooden case