Both Ends Open Solar Vacuum Tube

Product Details
Customization: Available
After-sales Service: Yes
Warranty: 5years
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Registered Capital
1000000 RMB
Plant Area
>2000 square meters
  • Both Ends Open Solar Vacuum Tube
  • Both Ends Open Solar Vacuum Tube
  • Both Ends Open Solar Vacuum Tube
  • Both Ends Open Solar Vacuum Tube
  • Both Ends Open Solar Vacuum Tube
  • Both Ends Open Solar Vacuum Tube
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Basic Info.

Model NO.
58/1800
Type
Double Vacuum Heating Tube
Certification
ISO, CE
Application
Water Heater, Solar Thermal
Pipe Material
Glass
Pressurized
Pressurized
Model
58/1800
Material
High Borosilicate Glass 3.3
Inner Tube
47mm Diameter, 1.6mm Thick
Outer Tube
58mm Diameter, 1.6mm Thick
Coating
Three Target, Cu/Aln-Ss/Aln
Absorption Rate
0.93
Emission Rate
0.04
Weight
2.0kgs
Transport Package
Carton
Specification
58/1800
Trademark
RAVEN NEW ENERGY
Origin
China
HS Code
84199010
Production Capacity
5000PCS/Day

Product Description

both open ends solar vacuum tube
Both Ends Open Solar Vacuum Tube


Solar vacuum tube is the core parts of solar water heating systems. It absorbs solar energy converting it into heat for hot water heating. Solar vacuum tubes have already been used more than 20 years in China. 


Each solar evacuated tube consists of two glass tubes made from extremely strong borosilicate glass. The outer tube is transparent allowing light rays to pass through with minimal reflection. The inner tube is coated with a special selective coating which features excellent solar radiation absorption and minimal reflection properties. The top of the two tubes are fused together and the air contained in the space between the two layers of glass is pumped out while exposing the tube to high temperatures. This "evacuation" of the gasses forms a vacuum, which is an important factor in the performance of the evacuated tubes.
Both Ends Open Solar Vacuum Tube

Why a vacuum? As you would know if you have used a glass lined thermos flask, a vacuum is an excellent insulator. This is important because once the evacuated tube absorbs the radiation from the sun and converts it to heat, we don't want to lose it!! The vacuum helps to achieve this. The insulation properties are so good that while the inside of the tube may be 150oC / 304oF , the outer tube is cold to touch. This means that evacuated tube water heaters can perform well even in cold weather when flat plate collectors perform poorly due to heat loss 


Specification:



Both Ends Open Solar Vacuum Tube
Both Ends Open Solar Vacuum Tube
Both Ends Open Solar Vacuum Tube

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