Spring loaded safety valve

Details Spring loaded safety valve Spring loaded safety valve

1980-06-23

1982-12-07

Nilson, Robert G.

Fluid handling

Line condition change responsive valves

Pilot or servo controlled

92 135, 1374925, 251 634, F16K 1706

Patent

active

043621830

ABSTRACT:
A spring loaded safety valve includes a control device which admits the pressurized medium to a supplemental loading system which consists of a spring housing which serves as a cylinder for a spring retainer which serves as a supplemental loading piston that is arranged about two adjustable sleeves which are arranged around the valve stem and which control the response pressure and the supplemental loading of the valve spring.

REFERENCES:
patent: 3512549 (1970-05-01), Wiegand
patent: 3865132 (1975-02-01), Wiegand

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