Hydraulic pressure relief valve and fluid isolator

Details Hydraulic pressure relief valve and fluid isolator Hydraulic pressure relief valve and fluid isolator

1978-12-14

1980-12-09

Nilson, Robert G.

Fluid handling

Line condition change responsive valves

Direct response valves

128675, F16K 1514

Patent

active

042379350

ABSTRACT:
A body of electrically insulating material contains a passageway extending completely through the body. The passageway includes a flexible diaphragm dividing the passageway into two compartments to isolate a transducer placed on one side of the diaphragm from direct contact with fluid contained on the opposite side. A pressure relief port, passing from one side of the body to the passageway on the fluid side of the diaphragm, is covered with an "O" ring. Excessive fluid pressure forces the "O" ring away from the relief port to vent the pressure and thereby prevent damaging the transducer.

REFERENCES:
patent: 2473912 (1949-06-01), Schwinn
patent: 3865100 (1975-02-01), Kanai
patent: 4030497 (1977-06-01), Binard
patent: 4072056 (1978-02-01), Lee

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