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Description of the solution for the failure of the Novo solenoid valve

NORGREN Solenoid Valve is a world-renowned manufacturer and supplier of pneumatic products. It provides pneumatic and fluid control solutions to customers worldwide. It manufactures and supplies a full range of pneumatic control and automation products, all of which hold ISO9001 quality standard certificates. Nuoguan solenoid valve, explosion-proof valve, cryogenic valve, anti-corrosion valve, valve island, etc.; air treatment equipment, various filters, pressure regulating valves, triple fittings, etc.

NORGREN solenoid valve troubleshooting solutions, listed as the following three common points:
First, the solenoid valve can not be closed
The seal of the main spool or the iron core has been damaged: replace the seal fluid temperature;
Whether the viscosity is too high: replace the solenoid valve of the opposite port; have impurities into the solenoid valve to produce the valve core or moving iron core: to clean;
Spring life has reached or deformed: replacement
Blocking orifice balancing hole: timely cleaning
Operating frequency is too high or life is up: re-election or update product

Second, the solenoid valve does not work after being energized
Check for poor power wiring: rewiring and connector connections
Check if the power supply voltage is in the working range: adjust the normal position range
Whether the coil is desoldered: re-welding
Coil short circuit: replace the coil
Is the working pressure difference inappropriate: adjust the differential pressure or replace the proportional solenoid valve
Fluid temperature is too high: replace the proportional solenoid valve
There are impurities that cause the main valve core and moving iron core of the solenoid valve to be stuck: for cleaning, if there is seal damage, replace the seal and install the filter.
The viscosity of the liquid is too high, the frequency is too high and the life is up: replacement of the product

Third, other circumstances
Internal leakage: check the seal for damage and the spring is not properly assembled
External leakage: the connection is loose or the seal is broken. Tightening the screw or replacing the seal
There is noise when energized: the solid parts on the head are loose and tightened. The voltage fluctuation is not within the allowable range and the voltage is adjusted. The iron core suction surface is dirty or uneven, and it is cleaned or replaced in time.

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