Solar Heater High Absorption Vacuum Tube

Product Introduction
KD-VT-HA solar heater high absorption vacuum tube is made of borosilicate glass, which applies the advanced 12-layer of spattering deposition technology of gradual change of ALN/ALN-SS/CU selective absorptive coating. This makes the vacuum tubes highly absorptive and highly resistant to high temperatures and low temperatures. In addition, the vacuum tube features a low reflection ratio. The interlayer produces a unique thermal effect, making the surface temperature reach up to 380℃. The color of the inner tube of high absorption vacuum tube is red.
The vacuum tube, the key part of the solar water heater, decides the performance of the heating system. KD-VT-HA high absorption vacuum tube has high heat efficiency and is reasonably priced. Even at a temperature of–20°C, it operates normally.

Specification
A) Structure: all glass concentric dual layer tube
B) Glass material: borosilicate
C) Absorption rate: >0.95
D) Emittance: <0.058 (80℃)
E) Vacuum: <5x10-5 Pa
F) Stagnation: >230 ㎡ .℃/KW
G) Average Heat Loss: <0.8 w/ ㎡.℃
H) Service life: more than 15 years

Kaisundun is a specialized solar heater high absorption vacuum tube manufacturer and supplier in China. We offer various types of products such as a solar water heater, heat pipe solar collector, heat pump water heater, split solar water heating system, and wind turbine generator.