Fail-safe delivery valve for pressurized tanks

The present apparatus invention uses a pressure responsive valve element to provide a virtually fail safe system for preventing hazardous discharge of fluid from a pressurized cylinder or tank. A diaphragm controls the movement of the valve element to prevent discharge of gas from a tank unless a pr...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	LEFEBRE, DAVID A, MARTIN, THOMAS B. JR
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ACTUATING-FLOATS BLASTING COCKS DEVICES FOR VENTING OR AERATING ENGINEERING ELEMENTS AND UNITS FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED,LIQUEFIED, OR SOLIDIFIED GASES FIXED-CAPACITY GAS-HOLDERS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING STORING OF DISTRIBUTING GASES OR LIQUIDS TAPS THERMAL INSULATION IN GENERAL VALVES VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED ORSOLIDIFIED GASES WEAPONS
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Beschreibung
Zusammenfassung:	The present apparatus invention uses a pressure responsive valve element to provide a virtually fail safe system for preventing hazardous discharge of fluid from a pressurized cylinder or tank. A diaphragm controls the movement of the valve element to prevent discharge of gas from a tank unless a predetermined pressure condition exists downstream of the check valve. This system is particularly useful in the delivery of arsine gas and provides multiple safeguards against accidental discharge.