SVR Global is a rising stem gate valve manufacturer in the USA, producing high-quality, premium valves with the following specifications: Materials: Cast iron, Cast steel (WCB, WC6, LCB, WCC, LCC, WC9), Ductile iron, SS304, SS316 Class: PN10 to PN 450 ANSI 150 to 2500 Size: 1/2'' to 64'' Ends: Socket weld, Butt weld, Flanged, Threaded Operations: Handwheel Operated, Gear Operated, etc.