Control valve response measurement device

Details Control valve response measurement device Control valve response measurement device

1995-12-08

1997-10-28

Rivell, John

Fluid handling

Processes

137554, 116277, 25112904, F16K 3700

Patent

active

056808780

ABSTRACT:
A method and apparatus employs a measurement device placed on an automatic control valve to test the speed of response of the control valve and any lost motion created by or within any mechanical linkage or connection used to automatically actuate the valve. A chain link clamp is attached between the valve shaft and a device for measuring the movement of the valve stem of the control valve to provide positive movement indication.

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