METHOD AND APPARATUS FOR MONITORING AND MEASURING DYNAMIC LOADS IN THRUST INDUCING SYSTEMS

Actual valve stem thrust loads in a motor operated valve are monitored and measured directly by the use of load sensing means disposed directly between the valve and the operator. Direct measurement of stem thrust eliminates the errors associated with indirect methods. Analysis of actual thrust load...

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Bibliographische Detailangaben
Hauptverfasser:	SCHOENBERGER, JACK O, BRANAM, TIMOTHY R, ROBERTS, JEFFREY J
Format:	Patent
Sprache:	eng ; fre
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:	Actual valve stem thrust loads in a motor operated valve are monitored and measured directly by the use of load sensing means disposed directly between the valve and the operator. Direct measurement of stem thrust eliminates the errors associated with indirect methods. Analysis of actual thrust load measurements and correlation with other operating parameters, such as switch actuation and motor current, provides the capability to accurately calibrate valve operators and to detect valve and operator problems at an early stage.