Monitor for double safety valves

Details Monitor for double safety valves Monitor for double safety valves

1983-04-05

1985-09-24

Favors, Edward G.

Fluid handling

Systems

Supply and exhaust

91424, 91448, 13759618, F15B 1308

Patent

active

045427674

ABSTRACT:
A safety monitor for a dual valve of the type that provides a malfunction signal when one of the valve members of the dual valve is not in its intended position. The monitor comprises a simple pressure sensing device that senses the pressure downstream of the inlet valve element of each of the valve members for sensing when a pressure exists downstream of the valve element.

REFERENCES:
patent: 4257455 (1981-03-01), Cameron
patent: 4345620 (1982-08-01), Ruchser et al.

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