Pre-rinse unit spray valve mechanism

A spray valve is configured with a fluid path that always provides dynamic water flow on both opposite surfaces of the seating flange of the valve stem when the valve is almost completely closed and when the valve is just beginning to be opened. This equalization of dynamic pressure from the incomin...

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Bibliographische Detailangaben
1. Verfasser:	WEAVER MARK V.,LANGNER LUKE EDWARD
Format:	Patent
Sprache:	eng
Schlagworte:	ACTUATING-FLOATS APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL ATOMISING APPARATUS BLASTING COCKS DEVICES FOR VENTING OR AERATING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING NOZZLES PERFORMING OPERATIONS SPRAYING APPARATUS SPRAYING OR ATOMISING IN GENERAL TAPS THERMAL INSULATION IN GENERAL TRANSPORTING VALVES WEAPONS
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Beschreibung
Zusammenfassung:	A spray valve is configured with a fluid path that always provides dynamic water flow on both opposite surfaces of the seating flange of the valve stem when the valve is almost completely closed and when the valve is just beginning to be opened. This equalization of dynamic pressure from the incoming water flow tends to reduce the frequency of vibration that is imposed upon the valve stem and biasing member by the incoming water flow. A check valve is built into the spray valve, which has a trigger lock and a selectively removable spray disk. The valve has an outer sleeve that surrounds the valve's base member and defines a gap therebetween and is formed of mechanical shock-resilient, heat-insulating material.