PILOT CHECK VALVE

PILOT CHECK VALVE

A pilot check valve (10) according to the present invention comprises: a fluid channel body (16); a moveable body (85) that moves in an axial direction under the effects of pilot pressure; a packing (20) comprising a lip portion (62) that is displaceable, integrally with the moveable body (85), betw...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: YO Seikai, YAMAMOTO Hitoshi, YAMADA Hirosuke
Format: Patent
Sprache:eng ; fre ; ger
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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Beschreibung
Zusammenfassung:A pilot check valve (10) according to the present invention comprises: a fluid channel body (16); a moveable body (85) that moves in an axial direction under the effects of pilot pressure; a packing (20) comprising a lip portion (62) that is displaceable, integrally with the moveable body (85), between a valve close position and a valve open position; and a detector (25) for detecting the position of the moveable body (85). The packing (20), in the valve close position, allows the flow of an operating liquid from a first port (12) side of the fluid channel body (16) to a second port (14) side and prevents the flow of the operating liquid from the second port (14) side to the first port (12) side, and in the valve open position, connects the first port (12) and the second port (14). ( Fig. 1 )