Quiet water valve

Details Quiet water valve Quiet water valve

1990-12-12

1992-01-21

Rosenthal, Arnold

Valves and valve actuation

With material guide or restrictor

Movable or resilient guide or restrictor

251 3003, 138 45, F16K 4708, F16K 4702

Patent

active

050822403

ABSTRACT:
A valve includes a rigid washer seated in the valve inlet conduit and supporting a flexible flow control washer having an flow control orifice that constricts with increasing pressure. The washer aperture is axially aligned with the flow control orifice. A cylindrical expansion chamber axially aligned with the orifice and aperture is located immediately downstream of the washer aperture. The expansion chamber has four cylindrical exit ports parallel to the chamber axis and communicating with the valve's valving chamber. Each port has a raised lip about the periphery of the port and extending into the expansion chamber. A bullet is integrally formed with the valve body along the axis of the expansion chamber and extends into the downstream portion of the flow control orifice at all pressures. The bullet has a flared base that directs the water radially into the expansion chamber. The bullet is shaped to provide a substantially uniform passageway through the downstream portion of the flow control orifice at elevated water pressures.

REFERENCES:
patent: 2489542 (1949-11-01), Rosenblum

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