Pressure and vacuum relief valve with debris-catching feature

Details Pressure and vacuum relief valve with debris-catching feature Pressure and vacuum relief valve with debris-catching feature

1982-02-18

1984-10-02

Schwadron, Martin P.

Fluid handling

Systems

Dividing into parallel flow paths with recombining

137854, 1375135, F16K 717

Patent

active

044742118

ABSTRACT:
A liquid-flow control valve with pressure-sensitive gas-bleed apparatus having a debris-catching feature. Included is a disc sealingly seatable selectively against a valve seat to open and close the valve. Apertures, which extend through the disc, remain open when the disc is seated on the seat. An aperture closure device, disposed adjacent the disc on the side from which fluid normally flows, has a pressure-responsive flex web biased by natural internal relaxed-state memory to form, in cooperation with the disc, a cavity which communicates with the apertures. The web has openings which are offset from the apertures when viewed along the adjustment axis of the valve and which communicate with the cavity. The web is moveable under the influence of liquid pressure from within the body toward the disc to collapse the cavity and to close the apertures when the disc is seated on the seat.

REFERENCES:
patent: 685169 (1901-10-01), Paul
patent: 2352307 (1942-04-01), Arey
patent: 3267960 (1966-08-01), Warburton
patent: 3454182 (1969-07-01), Morton

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