Safety shut off valve

An safety shut off valve automatically shuts off in response to seismic or other shock wave forces of a predetermined magnitude and thereafter automatically reset when there is no discernible excess gas flow due a downstream broken or leaking pipe. The shut off valve generally includes a housing hav...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	VELIE WALLACE W, VELIE, NEIL
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 GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HEATING JOINTS OR FITTINGS FOR PIPES LIGHTING MEANS FOR THERMAL INSULATION IN GENERAL MECHANICAL ENGINEERING PIPES SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING TAPS TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS THERMAL INSULATION IN GENERAL VALVES WEAPONS
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	An safety shut off valve automatically shuts off in response to seismic or other shock wave forces of a predetermined magnitude and thereafter automatically reset when there is no discernible excess gas flow due a downstream broken or leaking pipe. The shut off valve generally includes a housing having a mass spring system mounted therein for translating lateral seismic and other shock forces exerted against the housing to an axially movable magnet for decoupling a valve member plate attracted thereto allowing it to block the downstream fluid communication path. A small bypass flow permits the valve member plate to be automatically reset in engagement with the magnet when the atmospheric pressure upstream of the plate is substantially equal to the atmospheric pressure downstream of the plate.