Pneumatic valve used in common failures and solutions

by:AIRWOLF     2020-05-24
One cannot move, pneumatic valve 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 2, clear stolen goods. 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. Hey impurities in the valve ball core to get stuck in solution: : clear impurities replacement has damaged valve 5 pieces. Medium or the environment temperature is too low, cause pipe freezing. Solution: : even clear condensed water, add 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 damaged seal ring, replacement or piston cylinder, pneumatic valve slow crawl to 1. Cylinder friction change big solution: 3 of proper lubrication. Air pressure is not enough solution: increase the air pressure, on the way to set air tank to reduce the pressure change. 3. Pneumatic actuator torque too small solution: increase the actuator size 4. Heavy load of valve, valve core or other valve assembly is too tight is not reasonable. Solution: replacement again, adjust the valve torque of 5. The traffic is not enough or have other large gas consumption at the same time working solution: add air tank, air compressor, to reduce stress changes, the other 3 failure 1. The valve movement at the end of the beating, moves too fast, too large inertial energy solution: add speed regulating valve or external buffer 2. The valve movement began to beat, heavy load solution: increase the actuator specifications
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