expansion

Simple way to test the expansion valve 
Business

Simple way to test the expansion valve 

Refrigerant flow to an evaporator in a cooling system is controlled by expansion valves. Sensor bulbs, capillary tubes, diaphragms and valve bodies make up a thermal expansion valve. Calibrating liquid fills the thermal bulb, which is linked to the diaphragm through a capillary tube. To let refrigerant through, the diaphragm slides open and shut over […]

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