Description
Butterfly Valve with soft seat (rubber seat) is a usual valve in fire protection systems. It has quarter opening device which speed up operation needs for firefighting operation.
It has three types: wafer/ Lug type (to match between two flanges) and flanged.
Material of construction differs from ductile cast iron to Ni. Al. Bronze alloy. For above 6” it normally equips with gearbox hand wheel to handle large amount of momentum needs to open/ close of valve.
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