What are the types of tubes in the solar vacuum tube?
Needless to say, all glass, from the diameter (OD) is divided into 58mm and 47mm, the length from 1200mm to 2100mm. All glass vacuum heat collecting tube can be used in straight line, U tube and heat pipe type, can adapt to almost all types of engineering.
It can be divided into two kinds: full glass solar vacuum collector tube and glass metal solar vacuum collector tube
Glass solar vacuum collector tube is divided into 70 and 100mm diameter, the length is also a lot, but the longest seems to be 2000mm. At present, the use of glass metal heat pipe. Some restrictions on the use, and the price is relatively higher. Do not know if you are not satisfied!
