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Solenoid valve test

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Overview

The risk of blockage exists for process valves and solenoid valves, which are often used in addition to positioners to guarantee that the drive is quickly depressurized. To guarantee that the solenoid valve functions, it should be tested at regular intervals.

During the solenoid valve test, do not allow the process valve drive to depressurize. If it depressurizes, there is a risk of faults that have an impact on the product quality occurring during the process or the process may even need to be shut down.

SIPART PS2 monitors the solenoid valve test that is triggered by the control system and at the same time, ensures that a valve cannot fall short of the position selected by the system operator.

In addition, SIPART PS2 provides the opportunity of operating small- or medium-sized open/close valves up without an external solenoid valve. In a 3- or 4-wire version, SIPART PS2 can be operated at 24 V just like a solenoid valve. To do that, the positioner possesses a safe depressurization function with SIL2.

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