Multirange adjustable flow control

Details Multirange adjustable flow control Multirange adjustable flow control

1993-08-31

1995-06-27

Goldstein, Herbert

Measuring and testing

Volume or rate of flow

Using differential pressure

7386162, G01F 122

Patent

active

054269857

ABSTRACT:
A flush fluid flow control apparatus having an adjustable flow control valve and a flow measuring orifice combined in a block assembly. The flow control orifice is formed in a tube having a plurality of radial orifices and which can be axially turned to register with the flow channel for selecting flow ranges measurable by the orifice selected. Differential pressure is read across the orifice and communicated to act on a double headed piston which moves through the block proportionally to the differential pressure, the double headed piston compressing air in a chamber to an extent proportional with its movement, and a pressure gauge is installed into the chamber to correlate the movement of the double headed piston with the actual flow rate.

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patent: 3450164 (1969-06-01), Walker, Jr.
patent: 4434670 (1984-03-01), Rosaen

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