Fill valve responsive to liquid level

Details Fill valve responsive to liquid level Fill valve responsive to liquid level

1983-05-10

1985-06-11

Walton, George L.

Fluid handling

Liquid level responsive or maintaining systems

With control fluid connection at desired liquid level

137158, 13750513, 141198, 141215, 141302, 251 25, F16K 2118

Patent

active

045222274

ABSTRACT:
The fill valve is responsive to liquid level by passing vented vapor through serial orifices. The inlet flow is stopped by shifting a valve spool which is responsive to the pressure between the orifices. A pressure booster adjacent the vent outlet serves to momentarily shut off the outlet when pressure rises in the region of the second orifice to aid in shifting the main valve spool when system pressure is low.

REFERENCES:
patent: 1302538 (1919-05-01), Gulick
patent: 1485959 (1924-03-01), Brown
patent: 2571433 (1951-10-01), Fine et al.
patent: 2590622 (1952-03-01), Huber
patent: 3363641 (1968-01-01), Mylander
patent: 4191208 (1980-03-01), Mylander
patent: 4393891 (1983-07-01), Snoek et al.
patent: 4405000 (1983-09-01), Fuller

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