Fault a: electricity not action cause analysis: the power supply wiring poor contact; Power supply voltage fluctuation is not in the allowed range; Coil short circuit or burn out. Methods: connected the power cord; Adjust the voltage within the normal range; Replace the coil. Fault 2: open the valve when the fluid can't through the reason analysis, fluid pressure or differential pressure is not in conformity with the work; Do not conform to the fluid viscosity and temperature; Around the Industrial Valves core and the moving core with miscellaneous dirty, impurities; before filters or pilot valve hole plugging; Working frequency is too high or when using life. Processing method: adjusting work pressure or differential pressure or replacement for products; Replace the suitable products. For cleaning, internal valve must be installed before the filter valve; In a timely manner to clean the filter or pilot valve hole; For product model or replace new products. Fault 3: close the valve when the fluid can't cut the cause analysis: fluid viscosity does not meet; Fluid temperature does not accord with; Spring deformation or life expires; Seat defective or adhesion property; Seal out ` defects or deformation; Balance a hole or blockage in a throttling orifice; Working frequency is too high or when using life. Methods: the replacement of suitable products; Replace the right product; Add gasket or replace spring; Cleaning, grinding or update; Update, repackaging; Timely cleaning; Is up for re-election product model or a change in the new product. Fault 4: leakage reason analysis: loose pipe joint; Outside the pipe connection seal damage. Processing method: tighten bolts or to take over the thread; Replace the seal. Fault 5: internal leakage serious cause analysis: the fluid temperature is not in conformity with the; Guide the seat and the main seat impurities or defective; Pilot valve and main valve seal out or deformation; Spring assembly, deformation or life; When using working frequency is too high. Methods: adjust the fluid temperature or replacement; If you have to clean or grinding to repair or replace; Replace the seal; Replace the spring; For product model or replace new products. Fault 6: electricity too much noise cause analysis: fasteners loose; Voltage fluctuation, is beyond the scope of permitted; Fluid pressure or differential pressure is not suitable for work; Fluid viscosity does not meet; Armature surface absorption have impurities. Processing method: tight; Adjust to the normal range; Adjust the pressure or work pressure difference or replace the product; Replace the suitable products. In a timely manner to clean.
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