Fluid handling – Liquid level responsive or maintaining systems – By float controlled valve
Patent
1991-06-20
1993-01-19
Walton, George L.
Fluid handling
Liquid level responsive or maintaining systems
By float controlled valve
166321, 166324, 251 58, 251 636, 251315, F16K 3122, F16K 31122
Patent
active
051799731
ABSTRACT:
A valve employing a coupling disk to rotate the valve member so that rotative force is applied to the valve member in a direction away from the seat during opening of the valve and/or in a direction toward the seat during closing of the valve. Closing force is provided by a spring in a dome chamber and a gas charge in the dome chamber. A float valve controls fluid entry into the dome chamber to trap the gas charge therein while permitting the introduction of liquid from a balance-closure assist line to increase the pressure of the gas charge and assist in closing the valve member.
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Dickson Rennie L.
Godfrey Craig W.
Noack Timothy J.
Schwendemann Kenneth L.
Gay M. H.
Otis Engineering Corp.
Walton George L.
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