Relieving valve with surge control for fluid storage tank

Details Relieving valve with surge control for fluid storage tank Relieving valve with surge control for fluid storage tank

1987-03-24

1988-08-16

Schwadron, Martin P.

Fluid handling

Line condition change responsive valves

With separate connected fluid reactor surface

137498, F16K 3112

Patent

active

047636882

ABSTRACT:
A relieving valve for a fluid or liquid storage tank to permit release of pressure from inside the tank as necessary. A piston is movable within the valve to open the same to atmosphere as pressure builds up slowly therewithin. Upon occurrence of a sudden or rapid pressure rise in the tank, such as when the fluid therein surges against the valve, a snubber assembly in the valve is moved by said pressure rise to a partially closed position to impede the rate at which pressure can build within the valve and thus increase the time before which the valve opens to atmosphere.

REFERENCES:
patent: 2564171 (1951-08-01), Page
patent: 3145730 (1964-08-01), Presnell
patent: 3608581 (1971-09-01), Sweet
patent: 3756272 (1973-09-01), Hammond
patent: 3845879 (1974-11-01), Dernbach
patent: 3886969 (1975-06-01), Shira
patent: 4126151 (1978-11-01), Bullerdiek
patent: 4549565 (1985-10-01), Short

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