Backwater valve

Details Backwater valve Backwater valve

F - Mech Eng,Light,Heat,Weapons

16

K

F16K 15/03 (2006.01) F16K 15/18 (2006.01) F16K 31/20 (2006.01) F16K 31/56 (2006.01)

Patent

CA 2302454

A backwater valve includes a body having a flow passage extending therethrough with an inlet side and an outlet side. A closure gate is pivotally mounted within the body above the inlet side of the flow passage. The closure gate has an open position above the flow passage and a closed position blocking the inlet side of the flow passage. A float activated locking member is mounted on the body. The locking member has a locking position and a release position. In the locking position, the locking member engages and holds the closure gate in the open position. The float activated locking member is influenced by liquid rising in the body whereby the locking member is carried to the release position when the liquid rises above a preset level and upon release the closure gate closes by force of gravity.

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