This product has the two major components, which is mainly made of titanium tubes/titanium threaded pipe and PP-R plastic case to the iide and outside. Its working principle is reciprocal of the energy trafer between the refrigerant in the titanium tube and the liquid iide the plastic case.This product is simple and easy to use, and widely used in swimming pool heat pump, aquaculture, anodizing, electroplating, pharmaceutical and petrochemical industries and so on.