Detailed Product Description
Specifications:
1, Vacuum tube is consists of two layer of glass
tubes
2, ISO900:2000, CE certificate;
3, 0.91 transmittance of outer tube
4, The outer tube is made of extremely strong
transparent quartz sand which can resist impact from hail up to
25mm in diameter.
5, The inner tube is also made of quartz sand, but
it is coated with a special selective coating with strong heat
absorption and lowest heat loss.
6, The air is evacuated from the space between the
two glass tubes to form a vacuum, so it eliminates heat loss.
7, This why the tubes are able to absorb the energy
from infrared rays which can pass through clouds.
8, So it also can operate in low temperature and
low sunlight medium.
MODEL
ITEMS
GB(single target)
Configuration
Double-layer concentric boronsillicate glass
tubes
Glass thermal expansion coefficient
3.3*10-6/
3.3*10-6/
Diameter of outer tube
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