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Dezhou Gaia Solar Energy Co., Ltd.

Solar Vacuum Collector, Solar Accessories Thermal, Solar Pool Heaters manufacturer / supplier in China, offering Best Efficiency Solar Vacuum Accessories Thermal Collector, Hot 2016 Home Energy Panel Solar Thermal, Most Efficient Flat Panel Solar Water Heater and so on.

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Best Efficiency Solar Vacuum Accessories Thermal Collector

Purchase Qty.:
1,000-10,199 10,200+
FOB Unit Price: US $1.75 US $1.6
Purchase Qty. (Pieces) FOB Unit Price
1,000-10,199 US $1.75
10,200+ US $1.6
Get Latest Price
Port: Tianjin, China
Production Capacity: 10000pieces/Day
Payment Terms: L/C, T/T, Western Union

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Basic Info
  • Model NO.: 47*1800-3T
  • Type: Double Vacuum Heating Tube
  • Application: Water Heater, Solar Thermal, Air Conditioning System
  • Pressurized: Pressurized
  • Structure: All-Glass Concentric Tube Geometry
  • Glass Material: High Borosilicate Glass
  • Outer Tube Diameter: 47mm
  • Wall Thickness: 1.6mm
  • Net Weight: 1.7kg
  • Transport Package: Export Standard Packing
  • Origin: Dezhou, Shandong
  • Condition: New
  • Certification: ISO
  • Pipe Material: Glass
  • Name: Solar Vacuum Accessories Thermal Collector
  • Production Name: Best Efficiency Solar Vacuum Collecto
  • Length: 1800mm
  • Inner Tube Diameter: 37mm
  • Transmittance of Outer Tube: 0.93
  • Trademark: Gaia Solar
  • Specification: 47*1800-3T
  • HS Code: 8419901000
Product Description
          Best Efficiency Solar Vacuum Accessories Thermal 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%. 

Best Efficiency Solar Vacuum Accessories Thermal Collector


ALN/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)

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 pcs in one 40HQ;
8.Cheaper than other thermal  conductivity
Best Efficiency Solar Vacuum Accessories Thermal Collector
Best Efficiency Solar Vacuum Accessories Thermal Collector
Best Efficiency Solar Vacuum Accessories Thermal Collector
Best Efficiency Solar Vacuum Accessories Thermal Collector

Our service for you:

  Pre-sale service

  a) sample orders for check allowed, while necessary sample charges will return back with your bulk-order.

  b) OEM & ODM orders are acceptable. Any style of Logo could be printed or designed as your request.

  c) local or oversea projects could be operated together with you.

  d) good quality + competitive price + reliable service are what we are providing with.

After-sale service

  a) keep you reminded when producing your orders and delivery.

  b) keep you reminded when new products or updated quotation.

  c) 3 years guarantee. Any problems by quality would be settled until satisfied.

  d) long term cooperation will be welcomed & appreciated.
Contact Us 

Dezhou Gaia Solar Energy Co.,Ltd
Room 712, Baitiane Plaza, No.7 of HuBinnan Road, Dezhou City, Shandong Province


Mobile and Chat: 0086-13953485199


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