Solutions for natural refrigerants SHF-G series four-way reversing valves

SHF-G series four-way reversing valves are applicable for heat pump systems such as central, unitary air conditioners to realize switching between cooling mode and heating mode by changing the flow path of refrigerant. The main body in stainless steel guarantees an increased robustness with a design pressure suitable for all the refrigerant types and the certainly of a lead-free material. A Sanhua patent is related to the bi-metal joint of the four main connections: the pipes material is stainless steel, but the terminal of each connection is in pure copper to allow an easy brazing procedure.