Common solenoid valve troubleshooting

Common solenoid valve troubleshooting

Failure

Cause analysis The seals at the joints are loose and the joints are damaged. The temperature of the medium does not match the electric actuator. There are impurities or defects in the pilot valve seat and the main valve seat of the electric actuator. The pilot valve and the main valve seal come out or deformed. Working frequency is too high

Treatment method Adjust the temperature of the medium or replace with a suitable product. Clean the ears or grind, repair or replace the gasket, replace the spring, change the product model or change to a new product

Fault The high temperature solenoid valve does not operate when energized

Cause analysis Poor connection of the power supply wiring, the power supply voltage fluctuation is not within the allowable range, the coil is open or short-circuited

Treatment method Press the power supply wiring to adjust the voltage within the normal range to repair the welding or replace the coil

Failure The medium cannot flow during valve opening time

Cause analysis: The medium pressure or the working pressure difference is not suitable. The viscosity of the medium, the temperature does not match the valve core and the moving iron core, there are impurities mixed in the valve core and the moving iron core. The filter before the valve or the pilot valve hole is blocked. The working frequency is too high or the service life is expired.

Treatment method Adjust the pressure or working pressure difference or replace the suitable product to replace the suitable product to clean the interior, and the filter valve must be installed before the valve to clean in time, then change the product model or change to a new product

This article is original by the gas solenoid valve manufacturer, please indicate http://www.sungofluid.com/ for reprinting