Automatic drain valve with internal pressure booster valve

Details Automatic drain valve with internal pressure booster valve Automatic drain valve with internal pressure booster valve

1996-08-15

1997-11-18

Michalsky, Gerald A.

Fluid handling

Diverse fluid containing pressure systems

Fluid separating traps or vents

137195, F16K 3134

Patent

active

056877544

ABSTRACT:
An automatic float-activated drain valve for a liquid reservoir used in the accumulation of condensable materials and other contaminants from pneumatic systems and the like. The float is connected by a flexible tether to a lever arm which opens a pilot valve when the reservoir fills with water and the float moves to the top of the reservoir. The pilot valve permits air pressure to flow to an actuator which opens the drain valve. The pilot valve is in communication with a check valve which releases air pressure into the interior of the reservoir to rapidly expel water through the drain valve when the pilot valve is opened.

REFERENCES:
patent: 3807431 (1974-04-01), Svanteson
patent: 3993090 (1976-11-01), Hankinson
patent: 4444217 (1984-04-01), Cummings et al.
patent: 4562855 (1986-01-01), Cummings et al.
patent: 4574829 (1986-03-01), Cummings et al.
patent: 4779640 (1988-10-01), Cummings et al.
patent: 5004004 (1991-04-01), Cummings
patent: 5417237 (1995-05-01), Stumphauzer et al.

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