Pressure surge relief system

Details Pressure surge relief system Pressure surge relief system

1975-03-06

1976-08-03

Schwadron, Martin P.

Fluid handling

Line condition change responsive valves

Pilot or servo controlled

137492, F16K 31126, F16K 31365

Patent

active

039723640

ABSTRACT:
A pressure surge relief system including a valve which is opened to relieve the pipeline when line pressure overcomes a pilot chamber pressure. A pilot load duct with a variable orifice device therein connects the chamber to the pipeline. In the event of a surge, the orifice retards pressure build-up in the chamber so that it will be overcome by higher pressure in the pipeline. Pressure responsive means makes the orifice device more restrictive as pressure increases to produce a pressure lag at the control chamber even at lower velocities.

REFERENCES:
patent: 2353143 (1944-07-01), Bryant
patent: 2877791 (1959-03-01), Rich
patent: 3272470 (1966-09-01), Bryant

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