Valve having a movable interface isolating an actuating mechanis

Details Valve having a movable interface isolating an actuating mechanis Valve having a movable interface isolating an actuating mechanis

1982-05-13

1985-01-22

Rosenthal, Arnold

Valves and valve actuation

With actuation lubricating means

251121, 251127, 251266, F16K 3150, F16K 4704

Patent

active

044947313

ABSTRACT:
A valve constructed such that the part of the valve member actuating mechanism, which is located within the valve, is sealingly isolated from the flow passageway by an arrangement including a chamber whose volume changes upon movement of the valve member. A movable interface is provided between the chamber and the flow passageway, and is moved upon increases or decreases in the volume of the chamber, in the appropriate direction, to compensate for such volume changes. The valve may have a device for injecting a lubricant into the chamber and for contact with the interface.

REFERENCES:
patent: 2224447 (1940-12-01), Penick et al.
patent: 2568935 (1951-09-01), Smith
patent: 2593968 (1952-04-01), Bowan et al.
patent: 3013769 (1961-12-01), Volpin
patent: 3620502 (1971-11-01), Lawson

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