Motor operated valve analysis and testing system with monitoring

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

1987-06-25

1989-08-29

Noland, Tom

Measuring and testing

Dynamometers

Responsive to torque

73168, G01M 1900, G01P 1300, G01L 500

Patent

active

048605964

ABSTRACT:
A unique apparatus and method are used to detect and measure movement of a valve spring pack and worm through monitoring rotation of the torque switch control post. A device for measuring the operating characteristics of a valve and its operator and the corresponding imposed valve stem load is attached to the valve operator. The apparatus provides devices for statically calibrating the operator relative to the imposed valve load and provides a device for recording traces of the improved load and associated parameters during dynamic conditions as related to the operation of the operator and valve combined. The apparatus 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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patent: 4787245 (1988-11-01), Anderson et al.
patent: 4805451 (1989-02-01), Leon

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