Flow control valve

Details Flow control valve Flow control valve

1998-08-27

1999-11-16

Douglas, Steven O.

Fluid handling

Line condition change responsive valves

With separate connected fluid reactor surface

137 85, 137501, F16K 3112

Patent

active

059839260

ABSTRACT:
A first pressure chamber and a second pressure chamber are provided with means for continuously exerting a constant inward pressure on a first diaphragm part and a third diaphragm part respectively. A valve chamber having a flow control portion wherein a flow rate of the controlled fluid flowing from an inflow chamber to an outflow chamber is controlled by changing a size of the opening defined between a valve part and a valve seat, caused by a displacement of the valve part of a valve mechanism. A differential pressure chamber connects with the outflow chamber and has a bypass opening of a bypass passage connecting to the outflow passage.

REFERENCES:
patent: 3215159 (1965-11-01), Nixon
patent: 4084612 (1978-04-01), Baehr

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