Gold Member Since 2016
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Dezhou Gaia Solar Energy Co., Ltd.

Evacuated Solar Collector, Evacuated Tube Solar Water Heater, Vacuum Tube Collector manufacturer / supplier in China, offering High Quality Evacuated Solar Collector, Solar Thermal Vacuuum Glass Tube Cooker 58*1800mm, Renewabl Energy Flat Plate Solar Collectors 200L and so on.

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High Quality Evacuated Solar Collector

Purchase Qty.:
(Pieces)
1,000-5,729 5,730+
FOB Unit Price: US $1.9 US $1.6
Purchase Qty. (Pieces) FOB Unit Price
1,000-5,729 US $1.9
5,730+ US $1.6
Get Latest Price
Production Capacity: 7000pieces/Day
Transport Package: Export Standard Packing
Payment Terms: L/C, T/T

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Basic Info
  • Model NO.: 47*1500-3T
  • Type: Double Vacuum Heating Tube
  • Application: Water Heater, Solar Thermal, Air Conditioning System
  • Pressurized: Pressurized
  • Glass Material: High Borosilicate Glass
  • Outer Tube Diameter: 47mm
  • Wall Thickness: 1.6mm
  • Net Weight: 1.3kg
  • Origin: Dezhou, Shandong
  • Condition: New
  • Certification: ISO
  • Pipe Material: Glass
  • Structure: All-Glass Concentric Tube Geometry
  • Length: 1500mm
  • Inner Tube Diameter: 37mm
  • Transmittance of Outer Tube: 0.93
  • Trademark: Gaia Solar
  • HS Code: 8419901000
Product Description
High Quality Evacuated Solar Collector
Products Description

The evacuated tube is the key component to all the thermal heaters and system. It's similar to a conventional Dewar flask and consists of two borosilicate glass tubes, resistant to high chemical and thermal shock. The outer side of the inner tube is coated with a sputtered solar selective surface. This coated inner tube is closed at one end and sealed at the other end to the outer tube. The annular space between the outer tube and inner tube is evacuated to avoid heat loss in conduction and convection. The key element determines function of tube is the technology of the film coating, Gaia Solar tube is the best efficiency tube you can find in China, with the highest absorptance rate of near 97% with common rate of 94% and lowest emission rate near 3% with common rate of 5%. 


High Quality Evacuated Solar Collector




Parameters
 

ConstructionALN/ALN-SS/Cu/ Glass
Method of DepositionDC reactive sputtering
Absorptance 94%
Variation along Tube Length3%
Emittance < 6% (100°[1](C)
Vacuum Gas Pressure£ 5 x 10-3 Pa
Stagnation Temperature (typical)³ 270 °[1](C
Recommended Working Temperature£ 150 °[1](C
Heat Loss Coefficient of Collector Tube£ 0.85W / (M2·[1]°[1](C)



High Quality Evacuated Solar Collector
Advantage

1.Higher efficiency collector, much lower heat loss with vacuum insulation;

2. High pressure and super anti-freezing performance in cold weather condition;

3. Less heat loss for closed loop circulation;

4. No system drainage even though one or several tubes are broken;

5. No risk of tube breaking from thermal shock;

6. More convenient in system parts carring and installation;

7. Can load 6960 pieces in one 40 HQ;

8.Cheaper than other thermal conductivity

 
High Quality Evacuated Solar Collector

   
 

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