Specifications

Vacuum tubes series flat plate solar collector
1.Pressurized
2.Cover glass is iron free temprred glass.

The system has several difference from traditional flat plate solar collector:

1. Use vacuum tubes to collect sun radiation, rather than coating absorb  plate

2. Emission coefficiency is less than the traditional.

3. Tubes are pluged in header pipe,

 4. Chance of  leakage is small