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Dual Target Solar Evacuated Tube

Dual Target Solar Evacuated Tube
  • Dual Target Solar Evacuated Tube
Product code: 19649100001
Unit price: 2-3.5 USD
Price unit: Per piece
Minimum order:
Other info:
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Quick Details

  • Place of Origin: Shandong, China (Mainland)

  • Brand Name: Shandong Guangpu

  • Model Number: 47/1200.1500.1600.1800.58/1500.1600.1800.2100

  • Type: Vacuum Solar Collector

  • Application: Water Heater

  • Pipe Material: Glass

Packaging & Delivery

Packaging Details: Carton packaging, packaging specifications according to customer needs
Delivery Detail: 1-20


Solar evacuated tube
1. coating material: SS-C/ Cu
2. certificate: CE ISO9001 TS
3. OEM is available
5. testing machine: UV 3600

Solar tube

The out surface of the ineer tube is double coated with stainless steel and copper when adopting the newest magnetron sputtering coating technology. This type of selective coating (SS-C/ Cu) can withstand very high temperature. This is important because the tube is exposed in high temperature to evacuate the gas in the jacket between the inner tube and the outer tube. The solar energy absorption ability should be above 93%.



All glass double concentric tubes


Borosilicate glass 3.3

Outer tube diameter

Φ47±0.7. mm &=1.6mm

Inner tube diameter

Φ58±0.7. mm &=1.6mm


47mm-1500mm/ 1600mm/ 1800.

58mm-1500mm/ 1600mm/ 1800mm/ 2000mm/ 2100mm


SS-C/ Cu

Absorption rate after evacuating (AM1.5)

α= 0.88–0.90

Emission rate after evacuating (AM1.5)

ε= 0.04–0.06 (80°C±5°C)

Vacuum degree


Average heat loss conficient

ULT = 0.4-0.6w (m². °c)

Max stagnation temperature

(temperature inside of empty vacuum tube)




Impact Resistance