Shandong, China
Business Type:
Manufacturer/Factory, Trading Company
Business Range:
Metallurgy, Mineral & Energy
Terms of Payment:
Average Lead Time:
Peak season lead time: within 15 workday
Off season lead time: within 15 workday
OEM/ODM Availability:
OEM/ODM Service
Sample Available

Solar Collector Heater, Solar Collector Project, Solar Water Heater Collector manufacturer / supplier in China, offering Quality Assurance Solar Water Collector Heater Tube, vacuum Glass Tube / Domestic Hot Water Collector Tube, Thermal Solar Tube Borosilicate 3.3 Color, 70mm Solar Glass Vacuum Tube and so on.

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Quality Assurance Solar Water Collector Heater Tube

Get Latest Price
Purchase Qty. / Reference FOB Price
1,000-5,729 Pieces US $1.82
5,730+ Pieces US $1.78
Port: Tianjin, China
Production Capacity: 7000pieces/Day
Payment Terms: L/C, T/T
Condition: New
Type: Double Vacuum Heating Tube
Certification: ISO
Application: Water Heater, Solar Thermal, Air Conditioning System
Pipe Material: Glass
Pressurized: Pressurized

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Basic Info

Model NO.: 58*1800-3T
Structure: All-Glass Concentric Tube Geometry
Glass Material: High Borosilicate Glass
Length: 1800mm
Outer Tube Diameter: 58mm
Inner Tube Diameter: 47mm
Wall Thickness: 1.6mm
Transmittance of Outer Tube: 0.93
Net Weight: 2.1kg
Trademark: Gaia Solar
Transport Package: Export Standard Packing
Origin: Dezhou, Shandong
HS Code: 8419901000

Product Description

                                                      Quality Assurance Solar Water Collector Heater Project 
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%. 


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 pieces in one 40 HQ;

8.Cheaper than other thermal conductivity

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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