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All-glass Solar Vacuum Tubes
All-glass Solar Vacuum Tubes
Supplier Info
[China Supplier]
Contact Person : Ms. Jie Wang
Tel : 0086-10-61592294
Fax : 0086-316-3316992
Product Detail
1.High efficiency; 2.OEM to major manufacturers in EU; 3.Single/Three target coating available; 4. Thicker glass tube.

CIB Solar is one of manufacturers producing all glass tubes of highest quality and efficiency. A more efficient coating has been researched and applied into mass production with absorptance increase by 2%. All glass vacuum tubes are the key components of solar collectors and solar water heaters. The absorber is coated with selective surface via sputtering technology. The vacuum Layer between the envelope tube and inner tube is evacuated to virtually eliminate heat loss by conduction and convection.Each production process of vacuum tubes is under strict control, the spectrophotometer has ensured the repeatability and reproduction of the selective coating. Computer monitored out-gassing process is adopted to acquire out-gassing temperature, pressure, and duration time to control the lifetime of vacuum.Vacuum tubes are produced with lengths (mm) of 1500, 1600, 1800, 2100with diameters (mm) of 47and 58.

 

Features

  1.   High absorptance a>0.93 (AM1.5) and low emittance e<0.06 (80 deg. C);

  2.   Borosilicate glass 3.3 with transmittance higher than 91%;

  3.   Long service life by ensure vacuum integrity;

  4.   Quality manufacture ensures standadized tube with uniformity and reproducibility;

  5.   Private logo accepted.

Technical Data

 

MODELS

TB-I

TB-II

Product name

All glass evacuated solar collector tubes

Envelop tube diameter

47mm

58mm

Inner tube diameter

37mm

47mm

Length of tube

1500, 1600, 1800mm

1500, 1600, 1800mm

Solar seletive coating

AlN/AlN-SS/Cu

Absorptance (AM1.5)

> 0.94

Emittance (80deg.C)

< 0.06

Envelope tube thickness

1.6mm

1.8mm

Transmittance

91%

Vacuum

5 x 10-3Pa

Withstanding max. hailstone

25mm diameter

Load quanity 20GP/40GP/40HC

47 x 1500mm tube: 4788pcs/10143pcs/11634pcs

58 x 1800mm tube: 2700pcs/5400pcs/6000pcs

All-glass Solar Vacuum Tubes

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