Flow-control valve

Details Flow-control valve Flow-control valve

1978-03-27

1980-09-30

Nilson, Robert G.

Fluid handling

Systems

Multiple inlet with single outlet

137216, 2394285, F16K 1900

Patent

active

042249635

ABSTRACT:
A flow-control valve is provided, especially for controlling the flow of water heated to near its boiling point. In order to limit cavitation at the position immediately downstream of the throttling point formed by the sealing body, preferably in the form of a rubber diaphragm, and the valve seat, a ventilating slit is provided for communicating ambient air into the flow of liquid at a position downstream of the throttling point. In particularly preferred embodiments, the ventilating slit is formed between a thin inner tube and an outer tube, which outer tube has an upper end forming the valve seat. In particularly preferred embodiments, the cross section for the flow at the position where the ventilating air is introduced, is smaller than the throttling point cross section.

REFERENCES:
patent: 46727 (1865-03-01), Strater
patent: 3273866 (1966-09-01), Lancy
patent: 3415275 (1968-12-01), Berggren
patent: 3646607 (1972-02-01), Dower

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