SKU Valve Size: 40MM ; Material: CAST IRON ; Brand: SANT ; Disc: BUTTERFLY VALVE WAFER TYPE ; Power: Manual ; Media: Water, Gas, Air
Butterfly valves are generally favored because they cost less than other valve designs, and are lighter weight so they need less support. The disc is positioned in the center of the pipe. A rod passes through the disc to an actuator on the outside of the valve. Rotating the actuator turns the disc either parallel or perpendicular to the flow.