Descriptions:1. The pipe line is made of all red copper which is conducted by heat transfer medium liquid, water can not flow in the vacuum tubes and operated only when onfined.2. High heating efficency,can be used all the year round.Adopts selective absorbtion layer SS-C/CU and high vacuum heat preservation technology. The Heat pipes are melted together with the copper header in the top sink,which makes high pressure resistant ablity of up to 11kg/cm2 .3. Overcomes the problems of similar products such as scaling,vacuum tubes cracking,connectioon between&n
Solar collector