Apparatus for applying a known axial force to a valve stem

Details Apparatus for applying a known axial force to a valve stem Apparatus for applying a known axial force to a valve stem

1994-04-25

1996-08-27

Cuchllinski, Jr., William A.

Measuring and testing

Blower, pump, and hydraulic equipment

73806, G01M 1900

Patent

active

055489974

ABSTRACT:
Method and apparatus for simulating operating conditions on a motor operated valve. The present invention provides a means for simulating actual operating load conditions, such as a simulated accident condition, for valves. An axial force is placed on the valve stem by a hydraulically operating loading system to simulate loading conditions associated with a postulated accident, and the valve operator is actuated. The response of the valve during the simulated loading condition is monitored to ensure that the valve is capable of operating, such as to close or open, in the event of an unusual condition.

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