Stainless Steel Check Valve Specifications: 1) Sizes: 2 - 20" 2) Pressure class: 150 - 2, 500Lb. 3) Suitable temperature: -28 ~ 425 Deg. C 4) Suitable medium: Water, steam, oil products, nitric acid, acetic acid 5) Body material: Wcb, wc6, wc9, cf8, cf8m, cf3, cf3m, SS316, SS304 etc. 6) Connection: FF, RF, RTJ. Check Valve Features & Specifications Design & Manufacture: API6D, ANSI B16.34, BS1868 Bolted Bonnet, Swing Type Disc,