... its unique structure, it presents small weight, flow resistance and operating torque. From full open state to full close state, Valve ... Nominal Pressure(lb): 50, 150 Nominal Diameter: 2 24 Joint type: Wafer Testing API: 598 Suitable Media: Water, oil, gas, ... F) or - 64 5 220 Dviving type: Handle, worm gear, electrical, pneumatic, hydraulic DEMCO type Butterfly Valve(Interchangeable with Demco Model DM ...