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连云港2T-15 (copper)

2021-06-05 15:24:41
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连云港2T-15 (copper)
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Common pneumatic control valve failures and causes include control valve inaction, unstable control valve action, control valve vibration, slow control valve action, increase in control valve leakage, and reduced flow adjustment range.


One, the regulator does not work. The failure phenomena and reasons are as follows:


There is no signal and no gas source. ②Because the air source contains water and freezes in winter, the solenoid valve factory causes the air duct to be blocked or the filter and the pressure reducing valve to block failure, ③the compressor fails, ④the air source main pipe leaks.


There is air source, no signal signal.


②The governor is faulty,


The signal lamp tube is leaking;


③Leakage of positioning bellows;


(4) Regulate omentum damage.


The positioning device is airless. ②The filter is blocked; the pressure reducing valve is malfunctioning; ③The pipeline is leaking or blocked.


The positioner has an air source without an output. The orifice of the 24v solenoid valve positioner is blocked.


There is a signal, there is an action, and there is no action. (1) The valve core falls off; (2) The valve core or valve seat is stuck; (3) The valve stem is bent or broken; (4) There is freezing or fouling on the valve seat; (5) The actuator spring is not due to long-term failure. Use and rust to death.


2T-15 (copper)

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