Common Faults And Troubleshooting Methods:
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Whether the manual device is jammed, whether the air circuit is blocked.Solution: Repair the manual device, clear the air circuit.
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Whether the actuator is leaking, whether the air pressure is too low, whether the valve stem is deformed.Solution: Repair the actuator, increase air pressure, replace the valve stem.
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Whether the valve parts are damaged.Solution: Replace the valve parts.
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The manual device and the valve stem are not in position.Solution: Reset the manual device and valve position.
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Insufficient air supply pressure.Solution: Increase the supply pressure.
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The thrust of the pneumatic actuator is too small.Solution: Replace with a larger pneumatic actuator.
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The valve positioner and the valve stem are not in position.Solution: Adjust the positioner and valve stem.
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The valve closing pressure is too low or normally closed.Solution: Adjust the pressure, adjust the spring force.
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The air pipe joint is leaking or the air supply is insufficient or the air flow.Solution: Tighten the joint.
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The power supply is abnormal, such as the power supply circuit.Solution: Repair the power circuit.
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The indication is incorrect.Solution: Adjust the positioner indication correctly.
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Damaged microswitch.Solution: Replace the microswitch.
