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Brand Name : RAVEN NEW ENERGY
Model Number : 58/1800
Certification : CE
Place of Origin : CHINA
MOQ : 50pcs
Price : 2USD-5USD/PCS
Payment Terms : Western Union, T/T
Supply Ability : 200000PCS/ MONTH
Delivery Time : 10days
Packaging Details : carton
Name : solar vacuum tube
Model : 58/1800
Material : high borosilicate glass 3.3, 1.6mm
Outer tube diameter : 58mm
Inner tube diameter : 47mm
Coating : three target , Cu/ALN-SS/ALN
Vacuum degree : 3.5x10-3Pa
Tube length : 1800mm
Absorption rate : 93%
Emission rate : 4%
Solar Vacuum tube 58/1800mm

| Solar Vacuum Tube | |||||||||||
| Model | 58*1800 | ||||||||||
| Outer Diameter/Length of Tube | φ58mm/1800mm | ||||||||||
| Structure | All glass double tube co-axial | ||||||||||
| Glass material | High borosilicate 3.3 glass | ||||||||||
| Absorptive coating property | Material | Cu/SS-ALN(H)/SS-ALN(L)AlN | |||||||||
| Sediment method | 3 high magnertron sputtering plation | ||||||||||
| Specific absorption | As=0.93~0.96(AM1.5) | ||||||||||
| Emission ratio | ∑h=0.04~0.0.06(80°C±5°C) | ||||||||||
| Vacuum degree | P≤5×10-3Pa | ||||||||||
| Idle sunning property parameters | Y=200~300㎡.℃/KW | ||||||||||
| Solar irradiation for obtaining a preset water temperature | H≤4.7MJ/㎡(Φ58), H≤3.71~4.2MJ/㎡ | ||||||||||
| Average heat loss coefficient | ULT=0.4~0.6W/(㎡.℃) | ||||||||||
| Loading Qty (piece) | 40HQ | ||||||||||
| 6180 | |||||||||||
Vacuum tubes assimliate the advanced 3 layers of sputtering deposition of trivalent element technology, high borosilicate glass, gradual change of ALN/ALN-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 Celsius degree of ideal sunning, performing a strong heating ability.



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single target solar vacuum tube Images |