Multifunction instrument valve

The utility model relates to a multifunction instrument valve. A main valve core driven by a main valve stem is arranged corresponding to the inlet of a valve cavity in a valve body provided with a valve cavity inlet and a valve cavity outlet. The utility model is characterized in that the valve bod...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	YONGJIAN QU
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 relates to a multifunction instrument valve. A main valve core driven by a main valve stem is arranged corresponding to the inlet of a valve cavity in a valve body provided with a valve cavity inlet and a valve cavity outlet. The utility model is characterized in that the valve body is provided with a pressure relief opening communicated with the valve cavity outlet; a needle type valve is arranged in the pressure relief opening, and a valve rod body is provided with a T-shaped through hole. The utility model jointly realizes pressure test, sampling, dirt discharging, etc. on the same valve, which simplifies the production apparatus and the valve configuration on the pipeline, enhances the normal operation rate of the apparatus, and enhances safety.