Novel flange connection elastic sealing eccentric butterfly valve

The utility model provides a novel flange connection elastic sealing eccentric butterfly valve which comprises a valve body, a butterfly plate, a valve seat, a valve rod, a pressing plate, a sealing ring, a connecting pipe A, a connecting pipe B, a pressure reversing valve, a two-position three-way...

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Bibliographische Detailangaben
Hauptverfasser:	MA YUKUN, FU CHENFAN, JIANG ZISHAN
Format:	Patent
Sprache:	chi ; 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 provides a novel flange connection elastic sealing eccentric butterfly valve which comprises a valve body, a butterfly plate, a valve seat, a valve rod, a pressing plate, a sealing ring, a connecting pipe A, a connecting pipe B, a pressure reversing valve, a two-position three-way ball valve and a pressure guide pipe, the butterfly plate is rotatably arranged on the valve seat through the valve rod, and the sealing ring is arranged between the pressing plate and the butterfly plate; two interfaces of the pressure reversing valve are respectively connected with the first pressure sensing hole and the second pressure sensing hole of the valve body through a connecting pipe A and a connecting pipe B, the other interface of the pressure reversing valve is connected with the two-position three-way ball valve, one of the other two interfaces of the two-position three-way ball valve is communicated with the third pressure sensing hole, and the other interface of the two-position three-way ball valv