One piece seat ring with o-ring seal

Details One piece seat ring with o-ring seal One piece seat ring with o-ring seal

F - Mech Eng,Light,Heat,Weapons

16

K

277/20.7

F16K 3/16 (2006.01) F16K 3/02 (2006.01) F16K 3/20 (2006.01)

Patent

CA 1110288

ABSTRACT OF THE DISCLOSURE Sealing means for a flat gate valve comprising one- piece seat rings on both sides of the gate. A resilient O-ring is loosely received in an annular groove in the leading face of each seat ring and the leading faces of the seat rings radially outward of the annular groove are relieved to provide small clearances with the sides of the gate. A series of vent ducts are provided in the seat ring at the bottom thereof from the bottom of the O-ring groove to the valve body space radially outward of the seat ring.

341650

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