flow restrictor with check valve Suppliers introduces the faults and countermeasures caused by DCS

common error

1) The I/O card is damaged and there is no signal output, so the control valve cannot operate.

2) The DCS output signal is unstable, causing the control valve opening to fluctuate, making the control valve act abnormally.

3) The control cable is damaged or the insulation is not good, and the wiring is loose, resulting in abnormal signal and abnormal control valve action.

4) Due to insufficient maintenance, the positioner has entered water, the cylinder is corroded and leaked, and the gas source pipe ferrule has fallen off and leaked, causing the control valve to operate abnormally.

5) Due to the lack of careful inspection, the hidden dangers were not discovered in time, which led to further expansion, which eventually led to abnormal operation of the control valve.

Cause countermeasures

Daily maintenance and inspection work should be done, and hidden dangers should be dealt with in time; when the opening of the control valve fluctuates, check whether the PID parameter settings are correct and adjust the parameters in time.

Through the above introduction, KHB Ball Valves/KHB3K Ball Valves Exporter hopes that you can simply refer to the content of this article in future use.

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