Relief valve

Details Relief valve Relief valve

1975-12-10

1977-04-12

Nilson, Robert G.

Fluid handling

Self-proportioning or correlating systems

Self-controlled branched flow systems

137540, 137599, F16K 1110

Patent

active

040168999

ABSTRACT:
A relief valve to relieve excessive pressure on a flexible transfer hose used for transferring fluid material such as anhydrous ammonia when the valves on each end of the hose are closed. The gas expands and the relief valve bypasses the tank valve to relieve excessive pressure buildup in the hose. The relief valve vents such excessive pressure back into the tank supply chamber and not to the ambient atmosphere.

REFERENCES:
patent: 1577446 (1926-03-01), Brown
patent: 1711013 (1929-04-01), Bryant
patent: 2160028 (1939-05-01), Moore
patent: 2558687 (1951-06-01), Krueger
patent: 2600554 (1952-06-01), Lyons
patent: 2662543 (1953-12-01), Stacey
patent: 2687742 (1954-08-01), Crookston
patent: 2959188 (1960-11-01), Kepner

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