SVR Global is the best Bellow seal globe valve manufacturer in USA Description: Available materials: WCB, WC6, SS304, SS316, F11, F51, F91, LCC, LCB, WC Ends: Flanged, Buttweld, Socketweld, Threaded Class: 150 to 2500 Nominal Pressure: PN25 to PN450 Size: ½” to 24” Operations-: Hand-wheel operated, Pneumatic actuated, Electric actuated,Gear operated