STRONG TEST VALVES
May 1st 2005

The Stroke-Test from Smith Flow Control is a device that enables critical valves to be tested without shutting down the process flow.

This means the revenue stream is not interrupted, yet ensures plant operators comply with industry safety standards.

The system operates by ‘valve partial stroke testing’. When a Stroke-Test is fitted to a valve, it limits the movement of the actuator to within pre-set travel limits. This means all valve control elements, such as solenoids, positioners and relays are tested, without the valve having to close fully.

As the valve is only partially closed during the test, the flow coefficient is not significantly affected and process flow continues. If the valve is inoperable due to a mechanical failure, misalignment, and so on, it will be detected during the test.

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