Valve seat insert

Details Valve seat insert Valve seat insert

F - Mech Eng,Light,Heat,Weapons

16

K

251/29

F16K 1/22 (2006.01) F16K 1/228 (2006.01)

Patent

CA 1082160

TITLE OF THE INVENTION VALVE SEAT INSERT ABSTRACT OF THE DISCLOSURE A valve seat insert is disclosed which is useful in a butterfly valve of the type disclosed and claimed in U.S. Patent 3,608,861. In such valves, disc and sealing ring contact pressure is enhanced by fluid pressure in the fluid line regardless of the direction of fluid pressure. The valve seat mechanism provides a fulcrum to control deflection of the seat ring when the seat is pressurized from the stem side, and also, by means of an insert with a locking ridge, limits undesirable inward radial movement of the seat ring.

298004

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