A locking formula handle device for well head plug valve

The utility model relates to a locking formula handle device for well head plug valve, can overlap including one and establish at the outside guard shield of plug valve, be equipped with operating handle on the lateral wall of guard shield and be used for plug valve locking and spacing lock limiting...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	PEI ZHIGUANG, YANG CHAO, ZENG LIGUI, SUI GUOLIANG, CHANG WENXIA, WANG XINGLI, LIU XINFENG, QIU ZHONGXIANG, ZHANG XIAOYU, ZHANG XUECHAO, SUN LEI, FAN YONG, ZHANG DEYOU, WEN TAO, YU ZENGJIE, RAO DELIN, LI CHUNLI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
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