... exchangercoaxial heat exchanger is used in huge manchines as evaporator and condensering fucntinos with the high heat exchanger capability,main ... Best choice for heat pumpWork Condition:1)Refrigerant side (Between the tube and shell):R22,R134a,R404a,R407c,R410a,R600a,etc. Max ... helix structure of the coil ensures sufficient heat exchange between the gas and water.Safety:1)Whole tube inside shell has no ...