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Solenoid valve installation and maintenance points
Solenoid valve is a valve-controlled system commonly used one, It inexpensive, easy to use, convenient and reliable (PLC or DCS can directly accept a switch control signal

Number) and unanimously favored by the users. Of course, even the best stuff when they have to use in order to play its proper function, put the following in the installation and use of solenoid valves

Maintenance issues that need attention briefly explain.
Installation Notes:
1, first check whether the solenoid valve consistent with the selection parameters, such as supply voltage, medium pressure, pressure, etc., especially the power, if wrong, it will burn out

Coils. Supply voltage should meet the rated voltage voltage fluctuation range: AC +10% to -15%, DC +10% ~ -10%, usually coil assembly should not be disassembled.
2, receivership before flushing the pipeline, the pipeline metal powder and sealing material residues, rust, etc. cleared. Pay attention to the cleanliness of the media, such as

If the medium is mixed with dirt and impurities impede the normal operation of the solenoid valve, the pipeline should be installed filter or strainer.
3, the general solenoid valve solenoid coil parts should be upright, upright on the ground in a horizontal pipe, if space is limited or working conditions must press the side

Vertical installation is required in the selection when ordering. Doing so may cause the solenoid valve does not work properly.
4, the solenoid valve should be added after the manual shut-off valve should be located simultaneously bypass solenoid valve for easy maintenance in case of failure.
5, the solenoid valve is generally directed, non-installed anti, usually on the body with a medium flow direction → point, the installation should follow the direction → installation. Not

Over the vacuum line or under special circumstances reversed.
6, if the media will play a water hammer phenomenon, then the function should be used with water hammer solenoid valve or take appropriate precautions.
7, try not to let the solenoid valve is energized for a long time, so easy to reduce or even burn the coil winding life, that is, normally open, normally closed solenoid

Valve can not be used interchangeably.
8, the steam inlet side of the solenoid valve should be fitted with traps, should be inclined to take over the premises.
Solenoid valve faults and exclusion
1, the solenoid valve power does not work: Check the power wiring is bad → re-wiring and connector connection; Check the power supply voltage is within the operating range - →

Transferred to the normal range of positions; check the coil is sealing off → re-welding; coil short → Replace the coil; Working pressure is inappropriate → Adjust or replace pressure →

Commensurate with the solenoid valve; fluid temperature is too high → Replace the solenoid valve commensurate; impurities so that the main valve and solenoid valve stuck → movable core cleaning, if any seal damage

Bad seal should be replaced and installed filters; liquid viscosity is too large, the frequency is too high, and life expectancy has to → replacement product.
2, the solenoid valve can not be closed: the main spool movable iron core or seal is damaged → replace the seals; fluid temperature, the viscosity is too high → Replace electrical counterparts

Solenoid valve; impurities into electromagnetic valve moves or moving core → cleaning; spring has come to life or deformed → Replace; throttle Kong Pingheng clogging → timely cleaning

; Operating frequency is too high or life has come to → reelection product or update products.
Three other situations: internal leakage → Check seals for damage, the spring is defective assembly; external leakage → connections loose or tight seal has been broken → screws or

Replace the seals; noise when energized → chieftain on fasteners loose, tighten. Voltage fluctuation is not within range, adjust the voltage. Core pull surface impurities or not

Flat, timely cleaning or replacement.



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