OPENING AND CLOSING VALVE

OPENING AND CLOSING VALVE

PURPOSE:To effectively prevent damage on the surface of a valve body and ensure its sealing characteristic when a valve is closed, by extending an end, in the side adapted to the valve body, of a coil spring wire rod so as to prevent the end from coming into contact with the valve body. CONSTITUTION...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: ISHIKAWA KAZUNORI, TANIGUCHI TAKUJI
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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Beschreibung
Zusammenfassung:PURPOSE:To effectively prevent damage on the surface of a valve body and ensure its sealing characteristic when a valve is closed, by extending an end, in the side adapted to the valve body, of a coil spring wire rod so as to prevent the end from coming into contact with the valve body. CONSTITUTION:A coil spring 3 forms in its end, in the side adapted to a valve body 2, a ring-shaped part 31 serving as a seat of the valve body 2, while the end 3A of a wire rod, being extended to the outer from an external diameter of the coil spring and positioned outside the ring-shaped part 31, is prevented from coming into contact with the valve body 2. In this way, a check valve, when it is actuated to be opened and closed, enables the end 3A of the wire rod of the coil spring 3 to be prevented from rubbing the valve body 2, preventing a surface of the valve body 2 from flawing by an edge in the end 3A of the wire rod.