The function and working principle of the air-conditioning 4-Way Reversing Valve
4-Way Reversing Valve function: change the flow direction of Freon in the pipeline, to achieve the function of evaporator and condenser exchange, so that the air conditioning can be refrigeration and heating. that is, through it, the air conditioning can be changed from refrigeration to Heating.
4-Way Reversing Valve working principle is, when the solenoid valve coil is in a power-off state, such as the figure of the pilot slide valve in the right compression spring drive left shift, high pressure gas into the capillary tube into the right end of the piston cavity, on the other hand, the left side of the piston cavity gas discharge, due to the presence of pressure on both ends of the piston and
The other two tubes are connected to form a refrigeration cycle. When the solenoid valve coil is in power state, the pilot spool valve in the electromagnetic coil generated by the magnetic force to overcome the tension of the compression spring and right shift, high pressure gas into the capillary after entering the left piston cavity, on the other hand, the right end of the piston cavity gas discharge, due to the piston at both ends of the pressure difference, the piston and the main The other two pipes are connected, forming the structure characteristics of the heating cycle.http://www.shunfengvalve.com/the-function-and-working-principle-of-the-air-conditioning-4-way-reversing-valve/4-Way Reversing Valve used in unitary split and window-type heat pump system