Shutoff valve actuator remote control system

Details Shutoff valve actuator remote control system Shutoff valve actuator remote control system

1980-08-20

1983-02-15

Walton, George L.

Valves and valve actuation

Fluid actuated or retarded

Pilot or servo type motor

60404, 48192, 91 33, F16K 3112

Patent

active

043736980

ABSTRACT:
A shutoff valve actuator remote control system includes a main control apparatus and a duplicating control apparatus connected therewith. The duplicating control apparatus comprises a self-contained power source in the form of a gas generator with an igniter connected to an emergency remote control line, and further comprises a commutator, a safety valve, and a receiver connected with the gas generator outlet and the commutator. The commutator is also connected with the outlet from the main control apparatus and the shutoff valve actuator.
The present invention provides substantially enhanced dependability of control during breakdown conditions and features a simple design.

REFERENCES:
patent: 2498483 (1950-02-01), Campbell
patent: 2730994 (1956-01-01), Light
patent: 3348378 (1967-10-01), Lemley
patent: 3604679 (1971-09-01), Pennington
patent: 3827668 (1974-08-01), DeVries et al.
patent: 4065094 (1977-12-01), Adams
patent: 4317557 (1982-03-01), Orr
Service Manual No. 649577 for a 300 mm diameter, 75 kgf/cm.sup.2 ball valve, by the firm Saut du Tam, France.

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