Split knife gate valve having a uniformly compressed and...

Details Split knife gate valve having a uniformly compressed and... Split knife gate valve having a uniformly compressed and...

F - Mech Eng,Light,Heat,Weapons

16

K

F16K 3/16 (2006.01)

Patent

CA 2246922

A knife gate valve is constructed of two body members bolted together about a resilient gate seat. The two body members and the resilient gate seat include sets of axially aligned bolt holes through which machine bolts extend. Matching flanges on the body members form a recess for receiving the resilient gate seat, thereby constraining its movement and preventing its deformation when the knife gate is closed. The matching flanges also facilitate the uniform tightening of the machine bolts during gate valve assembly. The resilient gate seat includes tab portions at its ends for improved retention and rib portions along its length for improved sealing. The resilient gate seat includes a seating contact area that has a width that is less than the thickness of the knife gate for reducing friction between the knife gate and the gate seat.

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