Tri-element vacuum tube

1). Structure: all glass concentric dual tube geometer
2. Glass material: borosilicate glass
3). Absorptance: >0.92

Feature:
Shentai Vacuum tubes assimilate the advanced 12 layers of
spattering deposition Of trivalent element technology, high
borosilicate glass, gradual change of ALN/AIN-SS/CU selective
complex absorptive coating. And these make vacuum tubes have
high performance of absorptance and low reflection ratio. Through
the interlayer, vacuum has a unique effect of thermo, with its
temperature up to 380°C of idle sunning, performing a strong heating
ability.
Specification
Specification of all-glass Evacuated Solar Collector Tubes
1). Structure: all glass concentric dual tube geometer
). Glass material: borosilicate glass
3). Absorptance: >0.92
4). Emittance: <0.08 (80°C)
5). vacuum: <5*10-3 Pa
6). Stagnation >230 .°C/KW
7) average heat loss: <0.8w/ .°C
8). Lifetime >15years
Models material diameter length coating vacuum bearing hail
Ø47x1500 borosilicate 47 mm 1500 mm ALN/AIN-SS/CU ≤5x10-3 Ø 25 mm
Ø47x1800 borosilicate 47 mm 1800 mm ALN/AIN-SS/CU ≤5x10-3 Ø 25 mm
Ø58x1800 borosilicate 58 mm 1800 mm ALN/AIN-SS/CU ≤5x10-3 Ø 25 mm
Ø58x2100 borosilicate 58 mm 2100 mm ALN/AIN-SS/CU ≤5x10-3 Ø 25 mm