Electric valve maintenance guide
check whether the power wiring is poor → rewire and connect the connector
check whether the power voltage is within the ± working range - → adjust the normal position range
whether the coil is desoldered → rewire
whether the coil is short circuited → replace the coil
whether the working differential pressure is inappropriate → adjust the differential pressure → or replace the appropriate force value. The accuracy can also reach about 0.5%. Electric valve
fluid temperature is too high → replace The main valve core and moving iron core of the matching electric valve are blocked by impurities → cleaning. If the seal is damaged, replace the seal and install the filter
liquid to reduce the weight of parts and products. The viscosity is too high, the frequency is too high and the service life is up → replace the product
II The electric valve cannot be closed
the main valve core or the seal of the iron core has been damaged → replace the seal
the two clamps separate at a constant speed and stretch the sample fluid temperature Whether the viscosity is too high → replace the matched electric valve
there are impurities entering the valve core or moving iron core of the electric valve → clean
the spring has reached the service life or deformed → replace
the orifice balance hole is blocked → clean in time
the working frequency is too high or the service life has reached → change the product or update the product
III. other conditions
internal leakage → check whether the seal is damaged, Whether the spring is poorly assembled
leaking → the connection is loose or the seal is damaged → tighten the screw or replace the seal
there is noise when energizing → the fastener on the head is loose and tightened. The voltage fluctuation is not within the allowable range. Adjust the voltage. Clean or replace the iron core timely in case of impurities or unevenness on the clamping surface
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