Pressure regulating and relief valve

Details Pressure regulating and relief valve Pressure regulating and relief valve

1985-10-03

1986-11-25

Nilson, Robert G.

Fluid handling

Self-proportioning or correlating systems

Self-controlled branched flow systems

13750511, G05D 1606

Patent

active

046242775

ABSTRACT:
A combination pressure regulating valve and pressure relief valve is disclosed in which the outlet pressure is regulated to a certain pressure level below the inlet level and excess pressures on either the inlet or outlet of the valve are relieved through a relief passage. The valve includes a diaphragm biased by an adjustable spring means and a compressible bellows which interact with each to perform both the regulating and relief functions.

REFERENCES:
patent: 2783769 (1957-03-01), Philbrick
patent: 3457837 (1969-07-01), Powell
patent: 4171004 (1979-10-01), Cerrato

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