032F1225 EVR 15 NC 7/8'' Solder ODF Refrigeration Solenoid Valve

032F1225 EVR 15 NC 7/8'' Solder ODF Refrigeration Solenoid Valve

For small fluorine refrigeration systems, EVR20 refrigeration solenoid valves are usually closed. Without EVR20 solenoid valve, the high pressure liquid refrigerant will continue to enter the low pressure after closing until the high and low pressure balance. The compressor first inhales the refrigerant liquid in the pipeline, which makes the compressor break and liquefy. The lubricating oil of the compressor enters the system instantly and seriously damages the compressor parts. Therefore, in the high-pressure liquid supply pipeline installed solenoid valve, compressor motor synchronous operation or stop. In the case of sudden power failure and normal shutdown, the solenoid valve power, cut off the delivery of high-pressure liquid, ensure the system and compression. The machine is safe and working normally.

Technical data:

Main Dimension of EVR15-078S Refrigeration Solenoid Valve:

SAE/ODF Connection of EVR15-078S Refrigeration Solenoid Valve:

Packing and Payment of EVR15-078S Refrigeration Solenoid Valve:

EVR refrigeration solenoid valve trouble solution:

First of all, the solenoid valve does not work after power

Check whether the power connection is defective --- reconnect and connect the joint

Check whether the power supply voltage is within working range --- adjust the normal position range

Whether the coil is removed welding --- rewelding

Coil short circuit --- replace coil

Whether the working differential pressure is inappropriate --- To adjust the differential pressure --- To replace the proportional solenoid valve

Too high fluid temperature --- replace proportional solenoid valve

Solenoid valve main valve core and moving iron core are stuck by impurities --- cleaning. If the seal is damaged, replace the seal and install the strainer.

The liquid viscosity is too high, the frequency is too high, the service life reaches --- change the product

Second, the solenoid valve cannot be closed

Main valve core or iron core seal damage --- replace the seal

Whether the fluid temperature and viscosity is too high --- Replace the solenoid valve

There are impurities into the solenoid valve to produce a spool or move the core --- cleaning

Spring life up to or out of shape --- replace

Hole board balance hole plug --- timely cleaning

Working frequency is too high or life is up --- re-select or update the product

Third, in other cases

Internal leakage --- check for damage to seals and improper spring assembly

External leakage --- connection loose or seal failure --- tighten the screws or replace the seal

Noise during electrification --- head solid parts loose and tight. Voltage fluctuation is not allowed, adjust the voltage. Iron core suction surface dirty or uneven, timely cleaning or replacement.

Welcome to your inquiry!