Cam valve self-centering seat

Valves and valve actuation – With means to increase head and seat contact pressure – Seat pressed to valve

Patent

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Details

251174, 251177, 251298, F16K 2500

Patent

active

045195790

ABSTRACT:
A fluid valve capable of operation in high pressure, bidirectional flowpaths includes a chamber having a circular port in which an axially and radially movable seat ring is engaged by an eccentrically movable valve plug having a spherically convex sealing surface. The plug is mounted to a valve shaft supported in the body for rotation about an axis transverse to, but offset from, the centerline of the port. The seat ring, body and a retainer ring include among them a pair of annular channels for retaining a pair of seals adapted for improving their sealing action with pressure.

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