Dump valve

A dump valve 1 for controlling a supply of pressurised fluid to a hydraulic actuator, having a supply port 60, an actuator port 10p leading to the actuator, an exhaust port 7u, a control member 50 and a pilot port 20p for supplying a control fluid to the control member. The control member shuttles b...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	RONALD NORRIS WHYTE
Format:	Patent
Sprache:	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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