Piston solenoid valve failure and troubleshooting

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   A fault: power does not move Cause Analysis: The power supply wiring, poor contact; changes in supply voltage is not within the allowable range; for coil short-circuit

Or burn approach: The power cord; adjust the voltage within the normal range; replace the coil

      Failure two: open valve, fluid can not cause analysis: does not meet the fluid pressure or differential pressure; fluid viscosity or temperature

Complied with; the spool and the moving core around mixed with miscellaneous dirt, impurities; filter in front of the valve or pilot valve plug the hole; use when operating frequency is too high or life

Maturity approach: adjust the pressure or working pressure, or replace the product suitable; replacement of suitable products; cleaning of internal pneumatic auto drain before

Filter valve must be installed; timely cleaning the filter or jiaerling pneumatic  guide hole; reelection product model or replaced with new products

     Failure: Off valve fluid can not be cut off Analysis: the viscosit y of the fluid does not comply; fluid temperature does not comply; spring deformation or Shou

Life expired; seat defects or adhesion stolen goods; gasket prolapse `defects or deformation; balance hole or orifice clogged; the frequency of use

Too high or the end of life treatment methods: replacement of the right products; replacement of the right products; add pads or replace the spring; cleaning, grinding or

Update; update and re-assembly; timely cleaning; product model is re-election or change to a new product

      Failure: leakage Analysis: loose pipe joints; pipe connection seal damage approach: Tighten bolts or

Take over the thread; replace the seals

      Leak serious cause analysis: Fault 5: fluid temperature does not comply; guide seat and the main seat of impurities or defects; pilot valve and

Prolapse or distortion of the main valve gasket ; poor spring assembly, deformation, or end of life; use the operating frequency is too high: adjust the flow

Body temperature or replaced; cleaning or grinding, if you repair or replace; replace the gasket; replace the spring; reelection product model or replaced with new production

Products

      Failure: power noise Cause Analysis: loose fasteners; voltage fluctuations are not within the allowable range; fluid pressure or

Not suitable for working pressure; viscosity of the fluid does not comply; armature pull surface impurities approach: tighten; adjusted to within the normal range; adjust

Pressure or differential pressure of work or replace the product; replacement of suitable products; timely cleaning