DSF series electromagnetic 4-way reversing valves are applicable for residential air conditioners, VRVs, module units, unit machines, heat pumps and other refrigeration systems. They can change the flow path of refrigerants by controlling the pilot valve to realize switching cooling and heating mode, and defrosting function for heat pump systems.
DSF series 4-way reversing valve for HT & HP application is a special variant, which meets requirements of new refrigerants, and is suitable for application of all kinds of heat pump systems under more extreme conditions. It changes the flow path of refrigerants reliably by controlling the pilot valve to switch the mode between cooling and heating.
DRVB series large capacity cross-type four-way electromagnetic reversing valves are applicable for large-scale heat pump systems and ice machines and other equipment to realize the switching between cooling and heating modes by changing the flow direction of refrigerants, which is realized by the on/off control of the external pilot valve solenoid coil, leading the flow direction of the external high pressure gas in the valve body. As a result, the pressure diference between the both ends of piston is changed so that the piston moves inside the valve body, which changes the location fitting between the piston flow passage and the four connecting pipes outside the valve body.
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