Pressure-equalizing scavenging air valve device of normal-pressure closed ring main unit

The utility model discloses a pressure-equalizing scavenging air valve device of a normal-pressure closed ring main unit in the field of ring main units, which comprises a valve main body, a main air passage is arranged in the middle of the valve main body, the front part of the valve main body is c...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	CHU MINGMING, ZHAO FENGQING, JU SONGYAN, WANG CHANGLAI, JI HAIMEI, YE ZHANGMIN, WU JUNYAN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ACTUATING-FLOATS BLASTING BOARDS, SUBSTATIONS, OR SWITCHING ARRANGEMENTS FOR THE SUPPLYOR DISTRIBUTION OF ELECTRIC POWER COCKS CONVERSION OR DISTRIBUTION OF ELECTRIC POWER DEVICES FOR VENTING OR AERATING ELECTRICITY ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS GENERATION HEATING LIGHTING MECHANICAL ENGINEERING TAPS THERMAL INSULATION IN GENERAL VALVES WEAPONS
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