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[一般介绍]: 压力控制器是一种用压力讯号来控制的电开关,在制冷装置中,当压缩机排出压力超过给定值或吸入压力低于给定值时,它能自动切断电路,使压缩机停车而起到自动安全保护作用。在一些小型制冷装置中,低压控制端除了起到低压保护外,尚可使压缩机按给定的吸气压力自动开停,以保持冷库温度的稳定,起到库温调节作用。除此以外,在一些活塞式压缩机中装上低压控制器和电磁阀组合,可按压缩机的吸气压力变化,来增减压缩机的缸数,起
[General]: The pressure controller is a kind of electric switch controlled by pressure signal. In the refrigeration unit, when the compressor discharge pressure exceeds the given value or the suction pressure is lower than the given value, it can cut off the circuit automatically, The compressor stops and play an automatic safety protection. In some small refrigeration devices, the low-pressure control end plays the role of low-pressure protection and allows the compressor to automatically open and close at a given suction pressure to keep the temperature of the freezer stable and to regulate the temperature of the refrigerator. In addition, some piston compressors fitted with a combination of low pressure controller and solenoid valve, press the compressor suction pressure changes, to increase or decrease the number of compressor cylinder, starting