A, the electromagnetic valve after electrify doesn't work
Check the power supply connection is bad, rewiring and connector connection
Check the power supply voltage is in ± scope of work - - adjustable to normal position range
Coil is desoldering - to welding
Coil short-circuit to replace coil
Work pressure difference is not appropriate to adjust pressure difference - or replace proportional electromagnetic valve
The fluid temperature is too high to replace proportional electromagnetic valve
Impurity make electromagnetic valve of main valve core and dynamic core card dead - cleaning, such as a seal damage should replace the seal and install filter liquid viscosity is too big, frequency is too high and the life has come to replace the product
Second, the electromagnetic valve can not close
The main valve core or iron moving core of seal has been damaged, replace the seal
Fluid temperature, viscosity is too high, the change of electromagnetic valve
Impurity into the electromagnetic valve production valve core or moving core - for cleaning
Spring life has come to replace or deformation
Orifice balance hole plugging and timely cleaning
Work frequency is too high or life has come to re-elect products or update products
Three, other conditions
Internal leakage - inspection seal for damage and spring assembly is bad
External leakage, loose connection or seal has bad - screw or replace the seal
Electricity is noise - chief firm in a loose and tighten. Voltage fluctuation is not allowed, adjust voltage. Core suction joint surface impurities or rough, timely clean or replace.
Professional standard
 

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