Detailed Product Description Product DescriptionSwing Check Valve Raw material: Carbon steel, alloy steel, stainless steel Valve material: WCB, A105, CF8, CF8M, CF3, CF3M, F304 ... , DIN, GB, JIS, BS, etc. Connection end: RF, RTJ, BW, SW, NPT Pressure: 150LB-2500LB, PN16-PN250, 10K-40K Size: 1/2 ...