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Self operated control valve, also known as self operated regulating valve, is a regulating valve that relies on the pressure and temperature of the medium flowing through the valve as the energy so...

1、 Working principle of electronic expansion valveIn the variable frequency air conditioning refrigeration system, the opening size of the electronic expansion valve is accurately controlled based ...

1. Function of thermal expansion valve:The thermal expansion valve is installed at the inlet of the evaporator, often referred to as the expansion valve, and has two main functions:1) Throttling ef...

Problem one: the working principle of the electronic pressure switch.Working principle of electronic pressure switch: Is when the pressure in the system is higher or lower than the rated pressure, ...