Disc valve

Details Disc valve Disc valve

F - Mech Eng,Light,Heat,Weapons

16

K

251/30

F16K 1/22 (2006.01)

Patent

CA 1120907

ABSTRACT OF THE DISCLOSURE A circular seal ring for co-operation with a conically shaped seating surface of a disc valve that is concentric with respect to a valve axis. The seal ring comprises, in cross-section, a base having a width in a radial direction and a thickness in an axial direction. A slanted web protrudes in a generally radial direction from the base having substantially parallel, generally axially oriented faces. A slanted web center line intersects a radially oriented surface of the base at a first point. The web has a thickness substantially less than the thickness of the base to render it relatively flexible. A sealing member protrudes in a generally radial direction from an end of the web remote from the base. The sealing member terminates in a convex, arcuately shaped sealing surface extending in a generally axial direction and has a center of curvature which lies on the slanted web center line. The distance from the sealing surface to the first point is less than from the sealing surface to the center of curvature. The base, the web and the sealing member are constructed of a resilient material. The ring permits a disc valve that is easy and relatively cheap to make yet effective at widely varying pressures.

374799

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