Model SU CPC -U Pipe Collector for Split Non-Pressurized Solar Water Heaters

Working principle: The fluid passes through the U-shaped copper pipe which inserted inside the vacuum tube (evacuated tube) and when warmed up, it returns up to the header pipe. An aluminum fin conducts heat from the entire inner surface of the evacuated tube and transfers it to the solar fluid inside the copper pipe. The fin touch precisely to the inner glass tube and embraces tightly the U copper pipe with solar fluid.