Safety Valve Manufacturer in USA SVR Global is a leading Safety valve manufacturer in USA. Description: Body Material – Cast Iron and Steel (A216 WCB, WCC, LCB, LCC,WC6, WC9), Ductile Iron, Stainless Steel [SS316, SS304, SS316L,SS904L, CF8, CF8M, F304, F316, F31L, F51, F3, F55, F91] , WCB, WC6,SS304, SS316, DUPLEX STEEL. Class – 150 – 2500 PN 10 – PN 450 Size – ½ – 24” Ends- Butt welded, Socket welded, Flanged, Threaded