Manufacturer Steel Swing Flange Check Valve 1. Size: 1/2"-36",DN15-DN1000 2. Material: WCB, , CF8, CF8M, CF3, CF3M. 304, 304L, 316, 316L. 3. Class: 150LB, 300LB,PN1.0-16Mpa 4. Suitable medium: Water, oil, air and some corrosive liquid 5. Temperature range: -20° C - 425° C 6. Operate:...