Pressure difference control valve

The utility model discloses a pressure difference control valve. The pressure difference control valve comprises a valve body, a lower cover, a valve element assembly, an upper cover, a pressing cap, a sealing gasket, a nut, an O-shaped ring, a gasket, a screw and a connector. The valve body is prov...

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Bibliographische Detailangaben
Hauptverfasser:	LIAN CHAOYAN, ZHU YUNXIA, WANG YUTANG, YU ZHIQIAN, WANG CHAOYANG
Format:	Patent
Sprache:	eng
Schlagworte:	ACTUATING-FLOATS 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 TAPS THERMAL INSULATION IN GENERAL VALVES WEAPONS
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Beschreibung
Zusammenfassung:	The utility model discloses a pressure difference control valve. The pressure difference control valve comprises a valve body, a lower cover, a valve element assembly, an upper cover, a pressing cap, a sealing gasket, a nut, an O-shaped ring, a gasket, a screw and a connector. The valve body is provided with an inlet and an outlet. The inlet and the outlet are communicated through a medium channel. The medium channel is provided with a valve seat. A sealing pair for opening and closing of the pressure control valve is composed of the valve seat and the sealing gasket, the structure is simple, friction force is small, and therefore the control precision is higher, the control range is wider, and the pressure difference of a controlled system can be well controlled.