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The
"Valverciser"™
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In addition to safety applications, the D-Stop can also be used to enhance the operation of valves in severe applications.
In many process applications the chemical composition of the flowing fluid causes material to build-up on the valve internal body and trim surfaces. Over time, this build-up may cause the valve to “stick” in position and not stroke. In other applications, extreme heat and dry gasses may cause the valve to lock up.
Use of the D-Stop allows plant operators to periodically “exercise” the valve or actuator by allowing it to partially stroke—even while the valve is flowing process fluids! This “exercising” of the valve can be automated simply by installing a pilot actuator on the D-Stop as shown
above. If both the valve actuator and the D-Stop actuator are logically or timer controlled, this “exercising” can be a truly automated process.
Contact the factory for more information.
The D-Stop can also be configured to accommodate maintenance lock-in, tag-out requirements. |
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