Products Description
The evacuated tube is the key component to all the thermal heaters and systems. 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, and Gaia Solar uses the Patent of the University of Sydney to produce tubes and our 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%. At this efficiency, it has been very hard to improve the function any more, even very little part.

Product Details



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.
Other Type
Model | 47*1500-3T | 47*1800-3T | 58*2100-3T | 70*2100-3T |
Structure | All-glass concentric tube geometry | |||
Glass Material | Borosilicate glass | |||
Length | 1500mm | 1800mm | 2100mm | 2100mm |
Net Weight | 1.3kg | 1.7kg | 2.4kg | 3.2kg |
Outer Tube Diamter | 47 | 47 | 58 | 70 |
Inner Tube Diamter | 37 | 37 | 48 | 58 |
Wall Thickness | 1.6mm | |||
Transmittance of Outer Tube | 0.93 |

Packing &Â Delivery
Packing Details
Standard export package or pack it according to customers special request
Delivery Details
Within 7Â days
Our Company
Gaia Solar is located in Dezhou city which known as China Solar Valley. During past ten years history, Gaia Solar has become one of the largest private solar energy companies in china. Its main products solar evacuated tube, solar water heater, solar oven, parabolic trough solar collector and his receiver tube have exported more than thirty countries.Â
Good quality, competitive price and best service will be your best cooperator in the solar energy field.
Related Products
1.Gaia Receiver Tube
2.Parabolic Trough Solar Collector
3.Gaia Solar Oven
4. Flat Plate Solar Collector
Contact Us
Â
Dezhou Gaia Solar Energy Co.,Ltd
Room 712, Baitiane Plaza, No.7 of HuBinnan Road, Dezhou City, Shandong Province
Â
Website:Â gaiasolar.en.made-in-china.com
Mobile:Â 0086-13953485199
Skpy:Â gaiasolar
 Â
Â
Â
Â
Products Description
The evacuated tube is the key component to all the thermal heaters and systems. 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, and Gaia Solar uses the Patent of the University of Sydney to produce tubes and our 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%. At this efficiency, it has been very hard to improve the function any more, even very little part.

Product Details



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.
Other Type
Model | 47*1500-3T | 47*1800-3T | 58*2100-3T | 70*2100-3T |
Structure | All-glass concentric tube geometry | |||
Glass Material | Borosilicate glass | |||
Length | 1500mm | 1800mm | 2100mm | 2100mm |
Net Weight | 1.3kg | 1.7kg | 2.4kg | 3.2kg |
Outer Tube Diamter | 47 | 47 | 58 | 70 |
Inner Tube Diamter | 37 | 37 | 48 | 58 |
Wall Thickness | 1.6mm | |||
Transmittance of Outer Tube | 0.93 |

Packing &Â Delivery
Packing Details
Standard export package or pack it according to customers special request
Delivery Details
Within 7Â days
Our Company
Gaia Solar is located in Dezhou city which known as China Solar Valley. During past ten years history, Gaia Solar has become one of the largest private solar energy companies in china. Its main products solar evacuated tube, solar water heater, solar oven, parabolic trough solar collector and his receiver tube have exported more than thirty countries.Â
Good quality, competitive price and best service will be your best cooperator in the solar energy field.
Related Products
1.Gaia Receiver Tube
2.Parabolic Trough Solar Collector
3.Gaia Solar Oven
4. Flat Plate Solar Collector
Contact Us
Â
Dezhou Gaia Solar Energy Co.,Ltd
Room 712, Baitiane Plaza, No.7 of HuBinnan Road, Dezhou City, Shandong Province
Â
Website:Â gaiasolar.en.made-in-china.com
Mobile:Â 0086-13953485199
Skpy:Â gaiasolar
 Â
Â
Â
Â
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