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What causes the electromagnetic stainless steel to fail after power on?

First, electromagnetic stainless steel does not work after power on
Whether the coil is off-welded → re-welded
Short-circuit coil → replace coil
Is the working pressure difference inappropriate? Adjust the pressure difference? Or replace the appropriate electronic stainless steel
Fluid temperature is too high → replace the appropriate model
Impurities have caused the main spool and moving core to jam → clean it. If there is any seal damage, replace the seal and install the filter.
The liquid viscosity is too high, the frequency is too high and the service life is up → Replace the product
Check if the power wiring is bad → Reconnect and connector connections
Check if the power supply voltage is within ± working range - → normal range
Second, can not be closed
Main spool or iron core seal damaged → Replace seal
Fluid temperature, viscosity is too high → replace the electronic stainless steel counterpart
Impurities enter the valve core or moving core → cleaning
Spring life is reached or deformed → replace
Throttle orifice balance plug → timely cleaning
The operating frequency is too high or the service life has expired → Change the product or update the product
Third, other conditions
The use of electromagnetic stainless steel
Switch control for liquid and gas lines, two-digit DO control. It is generally used for the control of small pipes.
Can only be used as a switch, DO control, can only be used for small pipe control, common in the DN50 and the following pipeline, there is little up.
1. Switch form:
The electronic stainless steel is driven by the coil and can only be turned on or off, and the switching time is short.
2. The nature of work:
The general circulation coefficient is small, and the working pressure difference is small. For example, the general 25 caliber circulation coefficient is much smaller than the 15 caliber electric ball valve. The drive is through the solenoid coil and is easily damaged by voltage surges. The equivalent of the switch is to open and close 2 roles.
General power off can be reset, electric valve to such a function requires a reset device.
3 applicable process:
Suitable for some special process requirements, such as leakage, special fluid media, etc., which are more expensive.
Internal leakage → Check if the seal is damaged and the spring is not assembled properly
Leakage outside - Loose connections or broken seals - Tighten screws or replace seals
There is noise at the time of power-on → the loose parts on the head are loosened and tightened. Electronic stainless steel voltage fluctuation is not within the allowable range, adjust the voltage. Core suction surface impurities or uneven, timely cleaning or replacement.

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