AWWA Wafer Butterfly Valve Body: Ductile Iron, Cast Iron Disc: Ductile Iron, Stainless Steel, Aluminium Bronze Stem: SS304, SS316 Seat: EPDM, NBR Shaft: Stainless Steel Nominal Size: DN40 to DNN2000 Nominal Pressure: PN10, PN16, 250psi, 175psi, 200psi, 300psi Temperature: -15℃ to 150℃ Actuator: Lever Operated, Gear Operated, Electric Actuated, Pneumatic Actuated Design and Manufacture Standard: […]