Solenoid Valve

Refrigeration system points high pressure and low voltage, liquid and gaseous, to in compressor downtime Hou prevent high pressure liquid of freon back left on compressor formed impact so used electromagnetic valve to protection compressor in downtime Hou by of impact, dang compressor started Qian system pressure in balance of State so not exists impact then electromagnetic valve power open compressor started, freon cycle refrigeration, dang to downtime Shi compressor power or stop Hou electromagnetic valve fast power as, high pressure side of freon not anti-direction returned to compressor, But the circulation direction through the compressor, slowly the whole system and the stopping of the compressor pressure slowly to restore balance.

(If no solenoid valve before the expansion valve) or expansion valves solenoid valves in front of lax due to the closure will cause all the refrigerant into the evaporator, high voltage rises too fast, the compressor frequent start; even led to high and low pressure balance, liquid hammer when the compressor starts up again ... ... ...