Device for preventing water hammer while regulating water pressu

Details Device for preventing water hammer while regulating water pressu Device for preventing water hammer while regulating water pressu

1989-11-28

1991-08-13

Hepperle, Stephen M.

Fluid handling

Line condition change responsive valves

With separate connected fluid reactor surface

137606, G05D 1610

Patent

active

050388231

ABSTRACT:
Device for preventing water hammer while regulating water pressure includes valve element biasing means which substantially consists of a pressure adjusting spring with a small spring constant and a water hammer preventing spring with a large spring constant which are disposed in series in a valve casing. The valve element biasing means is capable of varying the opening area of a communicating passage between an upstream passage and a downstream passage to as to adjust the pressure in the communicating passage while preventing the occurrence of water hammer in piping water supply equipment.

REFERENCES:
patent: 2212626 (1940-08-01), Thomas
patent: 4055198 (1977-10-01), Iannelli
patent: 4667693 (1987-05-01), Lacour
patent: 4790414 (1988-12-01), Harrison

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