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Trouble shooting and maintenance of solenoid valve

by:Sure     2021-08-11
Solenoid valve troubleshooting 1. It is recommended that the user unit appoint a person to be responsible for use and maintenance. 2. Regular maintenance 1-2 times a year is the best method for reliable operation and longevity of solenoid valves. The following four conditions inside the solenoid valve are the reasons that hinder the normal operation of the solenoid valve and shorten the life. 2.1. The medium changes during use. 2.2. The tube is rusted. 2.3. Troubleshooting of the oil oxidation solenoid valve of the air compressor. 1. It is recommended that the user unit appoint a special person to be responsible for use and maintenance. 2. Regular maintenance 1-2 times a year is the best method for reliable operation and longevity of solenoid valves. The following four conditions inside the solenoid valve are the reasons that hinder the normal operation of the solenoid valve and shorten the life. 2.1. The medium changes during use. 2.2. The pipe is rusted. 2.3. The oil of the air compressor is oxidized to produce carbon particles, tar and other impurities, which are mixed into the pipeline. 2.4 There are impurities such as dust particles and dirt in the pipeline. 3. The solenoid valve is installed or long When it is put into operation again after the time is out of use, the medium must be introduced for several test operations, and it can be used after normal operation. 4. When the steam valve is put into operation again after being out of service for a long time, the condensed water should be drained and the test operation should be performed several times. It can be put into operation after normal. 5. Before maintenance, the power must be cut off and the medium pressure must be removed. 6. The solenoid valve coil assembly should not be disassembled. 7. When the solenoid valve is disassembled for cleaning, solutions such as kerosene and trichloroethylene can be used, but attention should be paid to the possibility of rubber parts. It will swell, so replace the rubber parts. 8. When disassembling and cleaning, all parts should be put in order in order to restore the installation. 9. Our company has vulnerable parts, please specify when ordering according to the instructions when necessary. 10. If you don't understand the disassembly sequence, wearing parts and other matters, please consult our company or local offices. Fault analysis and troubleshooting methods Analysis and treatment of the cause of the fault. The power connection does not work. The power connection is not in good contact. The power supply voltage is not within the allowable range. The coil is short-circuited or burned. Connect the power line. Adjust the voltage. Replace the coil. The working pressure difference does not meet the fluid viscosity or the temperature does not meet the spool and the moving magnetic core. Dirt, impurities are mixed around the valve core and the valve front filter or the pilot valve hole is blocked. The working frequency is too high or the service life expires. Adjust the pressure or the working pressure difference or replace it Replace the suitable product to clean the interior. The filter valve must be installed before the valve. Clean the filter or pilot valve hole in time. Change the product model or replace the new product. When the valve is closed, the fluid cannot be cut off. The fluid viscosity does not meet the fluid temperature does not meet the spring deformation or The valve seat is out of service life is defective or adhered to the stolen material. The gasket is out. Defect or deformed. The balance hole or the orifice is blocked. The working frequency is too high or the service life expires. Replace the appropriate product. Replace the appropriate product. Add gaskets or replace the spring for cleaning. , Grinding or updating, re-assembly, and timely cleaning, then change the product model or change the new product. The leaking pipe connection is loose. The outer seal of the pipe connection is damaged. Tighten the bolt or the thread of the pipe. Replace the seal. The fluid temperature does not meet the pilot valve seat and the main Impurities or defects in the valve seat The pilot valve and the main valve seal are out or deformed. The spring is poorly assembled, deformed or expired. The working frequency is too high. Adjust the fluid temperature or replace it. Clean or grind if there is any. Repair or replace the seal. Replace the spring. Change the product model or replace the new product. The noise is too large when the power is turned on. The fastener loosens the voltage fluctuation, and the fluid pressure or working pressure difference is not within the allowable range. The fluid viscosity is not suitable for the fluid viscosity. There is impurities on the suction surface of the armature. Working pressure difference or replacement of products, replacement of suitable products, timely cleaning
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