Manual and mechanical double-drive valve

The invention discloses a manual and mechanical double-drive valve and belongs to the technical field of valves. The manual and mechanical double-drive valve comprises a valve body, a shaft frame fixed to the valve body and a mechanical drive device fixed to the shaft frame. The mechanical drive dev...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	ZHANG ZHANWU, WANG WUKAI, LI SHULEI, WEI JINGJING, ZHANG ZHIHUI, ZHANG SHUMIN
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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