a, pneumatic valve cannot move

1. Solenoid valve is normal, the coil is burnt, whether the electromagnetic valve core was stolen card dead

solution: replace the solenoid valve, replace the coil, clear goods

2. Pipe distortion, flattening

solution: : correct or replace line

3. Manual actuator lever in position to manual

solution: : pull the lever to pneumatic automatic position

4. Yo impurities in the valve ball core to get stuck in the

solution: : clear impurities change has damaged valves

5. Medium or the environment temperature is too low, cause pipe freezing.

solution: : even clear condensed water, add in addition to water equipment

6. Whether actuator single strands of gas test, normal work, such as cylinder piston gas channeling, or the shaft and cylinder gas leakage, etc. , open actuators check whether the seal is damaged, cylinder bore surface is damaged.

solution: methods: replace has bad sealing ring, replace or piston cylinder

2, pneumatic Industrial Valves slow crawl

1. Large cylinder friction change

solution: the appropriate lubrication

3. Air pressure is not enough

solution: increase the air pressure, set up on the way air tank to reduce the pressure change.

3。 Pneumatic actuator torque too small

solution: increase the actuator specifications

4. Heavy load of valve, valve core or other valve assembly is too tight is not reasonable.

solution: replacement again, adjust the valve torque

5. Its flow is not enough, or also have other large gas consumption of unit work

solution: add air tank, air compressor, to reduce the pressure change

three or other failure

1. Beat at the end of the valve action, action fast, large inertial energy

solution: add speed regulating valve or external buffer

2. movement began to beat, heavy load

solution: increase the actuator specifications

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