Pressure regulator

Details Pressure regulator Pressure regulator

1989-06-21

1990-06-26

Cohan, Alan

Fluid handling

Line condition change responsive valves

Pilot or servo controlled

251 57, 25112911, G05D 1620

Patent

active

049363409

ABSTRACT:
A pressure control assembly is disclosed. The assembly includes a pressure transducer for detecting upstream pressure. A diaphragm is used to regulate flow through the assembly, and is forced into a closed position by pressure from a fluid column. The pressure on the fluid column is controlled by a piston driven by a step motor. The step motor is activated in response to signals from the pressure transducer.

REFERENCES:
patent: 2268960 (1942-01-01), Ray
patent: 3307824 (1967-03-01), Weisheit
patent: 3317180 (1967-05-01), Dryden
patent: 3464438 (1969-09-01), Maurer
patent: 4203465 (1980-05-01), Rissi
patent: 4313461 (1982-02-01), Brumm
patent: 4550747 (1985-11-01), Woodworth
Perry et al., "Chemical Engineers Handbook," 5th Edition, pp. 22-87 to 22-104 (1973).
Condyne Sales Materials (1988).

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