Oil field water injection valve

The invention relates to an oilfield water injection valve and belongs to the technical field of valves. The double-way valve comprises a direct-current gear motor and is structurally characterized by further comprising a valve body, a double-way screw, a lower pressing block, an upper pressing bloc...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	CHEN YINGSONG
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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