Motor operated valve analysis and testing system

Measuring and testing – Blower – pump – and hydraulic equipment

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73 1J, G01M 1900

Patent

active

046931139

ABSTRACT:
A Valve Analysis and Testing System includes various devices for measuring the operating characteristics of a valve and its operator and the corresponding imposed valve stem load, which devices are attached to the valve operator. These devices provide for statically calibrating the operator relative to the imposed valve load and provide recording traces of the imposed load and associated parameters during dynamic conditions as related to the operation of the operator and valve combined. The System provides initial dynamic traces after initial assembly, maintenance and/or periodic testing of the operator and valve. The System is then used to provide diagnostic dynamic traces at any specified time in the future for the operator and valve. These further traces are used to compare with earlier traces to verify correct performance and most importantly to detect induced or impending damage, malfunctions, or maintenance requirements for the operator and valve.

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"Electronic Torque Monitoring for Valve Drives"; vol. 60, pp. 169-171, Sulzer Technical Review; Apr. 1978, F. Konig.

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