Pressure relief device

Details Pressure relief device Pressure relief device

1981-03-23

1983-06-21

Weakley, Harold W.

Fluid handling

Destructible or deformable element controlled

Destructible element

13732901, 13751629, 137541, 137543, 251361, 220 89A, F16K 1304

Patent

active

043889409

ABSTRACT:
A safety pressure relief device for a refrigerated liquified gas storage vessel having a large diameter valve seat mounted on the vessel, a valve closure movably mounted to engage the valve seat to close flow therethrough and to move away from the valve seat to relieve pressure in the vessel, a spindle extending through the seat and guided by a spider spanning the seat, a spring within the vessel biasing the valve closure toward the seat and means of preselected strength retaining the valve closure on the seat unitl a preselected maximum desired fluid pressure is reached within the vessel at which time such retaining means fails and valve closure moves to open position to provide large area relief of fluid pressure from the vessel.

REFERENCES:
patent: 2587933 (1952-03-01), Volpin
patent: 3063467 (1962-11-01), Roberts
patent: 3319643 (1967-05-01), Horn
patent: 3587632 (1971-06-01), Clay
patent: 4266574 (1981-05-01), Tilling

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