Valve arrangement for controlling the flow of mediums

Details Valve arrangement for controlling the flow of mediums Valve arrangement for controlling the flow of mediums

1985-07-12

1987-02-10

Cohan, Alan

Fluid handling

Line condition change responsive valves

Pilot or servo controlled

G05D 1600

Patent

active

046416838

ABSTRACT:
A valve arrangement for controlling the flow of mediums, specifically of gases or liquids in pipelines or similar conduits comprising an on-off valve, a throttle positioned downstream of the on-off valve, and a pressure sensor arranged between the on-off valve and the throttle. An actuator is also provided which upon a pressure increase at the pressure sensor causes the immediate or retarded closing of the on-off valve, and at pressure drop the immediate or retarded opening of the on-off valve.

REFERENCES:
patent: 3586027 (1971-06-01), Fitzgerald
patent: 3775622 (1973-11-01), Fredericks
patent: 4253480 (1981-03-01), Kessel

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