Combined pressure regulated and check valve

Details Combined pressure regulated and check valve Combined pressure regulated and check valve

1986-09-11

1987-07-21

Michalsky, Gerald A.

Fluid handling

Larner-johnson type valves; i.e., telescoping internal valve...

Line condition change responsive

137219, F16K 31122

Patent

active

046811303

ABSTRACT:
A combined pressure-regulated and check fluid flow valve is disclosed which is adapted to be installed directly on the pipeline and serve also as a protection against water hammer in case of sudden pressure failure in the line. The valve is installed within a housing configured as a uniform extension of a pipeline to which the valve is connected. The structure consists mainly of a freely reciprocable differential piston associated with a fixed differential cylinder, a freely reciprocable valve member at the inlet side and a freely reciprocable piston at the outlet side of the housing.

REFERENCES:
patent: 2071969 (1937-02-01), Diescher
patent: 3134394 (1964-05-01), Ohta
patent: 3515165 (1970-06-01), Zadoo

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