Motor operated valve analysis and testing system

Details Motor operated valve analysis and testing system Motor operated valve analysis and testing system

1985-06-06

1987-09-01

Noland, Tom

Measuring and testing

Dynamometers

Responsive to torque

73168, G01M 1900, G01L 500

Patent

active

046900039

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 future 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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