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Three-target all-glass solar vacuum tube has property and spec. as following:
1. All-glass double-tube co-axial structure, high borosilicate 3.3 glass ;
2. Transmission Ratio of the Outer Glass Tube;
3. Structure: Cu/SS-ALN(H)/SS-ALN(L)/ALN.
4. Sediment method: 3 target magnertron sputtering plating ;
Comparing to Al-N-Al vacuum tube, it has advantages in cold area as following:
a. Absorbance: 12% higher.
b. Emission Ration: 30-49% lower.
c. In alpine area, copper ions emission ration is lower than that of aluminum ion. So it could work properly even circumstance temp. is lower than -30Deg C.
d. Stainless steel ion has performance of high temp. resistant, anti-stagnation temp. coating will not decay or get aging or disappears.
Model no.:
Dia. 47 with length of 1500mm
Dia. 58 with length of 1500mm
Dia. 58 with length of 1600mm
Dia. 58 with length of 2000mm
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