Gas pressure control valve cartridge

Details Gas pressure control valve cartridge Gas pressure control valve cartridge

1991-08-02

1992-04-21

Cohan, Alan

Fluid handling

Line condition change responsive valves

Pilot or servo controlled

251282, 1374542, G05D 1606

Patent

active

051058472

ABSTRACT:
The cartridge (10) has a bulkhead (14) carrying a housing (16) on which is mounted a hollow inlet member (20). A valve member (24) is accommodated in the housing and is attached to a valve operating rod (26) extending through the bulkhead and having a pilot control system mounted on the opposite side of the bulkhead from the housing. A valve seat (28) is supported on the inlet member, which defines with the housing an outlet (30), across which the valve member travels when moving towards and away from the valve seat. The pilot control system has an outlet tube passing through the bulkhead and communicating with the interior of the inlet member and having an outlet tube passing through the bulkhead and opening outside the housing and the inlet member. The cartridge has a slam-shut valve member (32) slidable in the lower end of the inlet member operated by a cable (42) and an actuator (46).

REFERENCES:
patent: 2291731 (1942-08-01), Lake
patent: 2627703 (1953-02-01), Spencer
patent: 2707970 (1955-05-01), Hughes
patent: 3373765 (1968-03-01), McCarty
patent: 4477056 (1984-10-01), Alexius
patent: 4500070 (1985-02-01), Riollet

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