Electric control valve

2017-04-20View Original

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During operation of electric control valves, when the valve position is below 14%, significant fluctuations in the valve position occur. What is the reason for this?

Reply #22017-04-21

Check whether the valve positioner and the purge air filter are clogged, which may cause the zero point to shift

Reply #32017-04-21

I couldn’t see clearly from the second floor that it was electric! This thing isn’t easy to handle; contact the manufacturer!

Reply #42017-04-21

What valve? Is it used with steam or compressed gas? The selection issue is highly likely.

Reply #52017-04-21

Personally, I think it’s the large pressure difference before and after the valve that causes vibration at low opening degrees; you might try closing the shut-off valve in front of the control valve a bit.

Reply #62017-04-21

Please answer: what are the values for medium, temperature, and pressure respectively?

Reply #72017-04-21

The valve is too large; adjust the PID.

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Electric control valve

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