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 workdays
Off season lead time: within 15 workdays
OEM/ODM Availability:
OEM/ODM Service
Sample Available

Solar Evacuated Tube, Solar Tube, Evacuated Tube manufacturer / supplier in China, offering Factory Direct Solar System Evacuated Tube, EEC Approved New Electric Car L7e Lithium Battery, EEC Certificated L7e 4 Seaters Electric New Cars with Speed of 60km Ternary Lithium Battery Left and Right Hand Driving and so on.

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Supplier Homepage Products ETC tube Factory Direct Solar System Evacuated Tube

Factory Direct Solar System Evacuated Tube

Purchase Qty. / Reference FOB Price
7,000-13,999 Pieces US $1.65
14,000+ Pieces US $1.5
Port: Tianjin, China
Production Capacity: 7000pieces/Day
Payment Terms: L/C, T/T, Western Union
Condition: New
Type: Double Vacuum Heating Tube
Certification: ISO
Application: Water Heater, Solar Thermal, Air Conditioning System
Pipe Material: Glass
Pressurized: Non-Pressure

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Basic Info.

Model NO.
Product Name
Factory Direct Solar System Evacuated Tube
Solar Evacuated Tube
All-Glass Concentric Tube Geometry
Glass Material
High Borosilicate Glass
Outer Tube Diameter
Inner Tube Diameter
Wall Thickness
Transmittance of Outer Tube
Gaia Solar
Transport Package
Export Standard Packing
Dezhou, Shandong
HS Code
Factory Direct Solar System Evacuated Tube

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, 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.
Factory Direct Solar System Evacuated Tube
Product Details

Factory Direct Solar System Evacuated Tube

Factory Direct Solar System Evacuated Tube

Factory Direct Solar System Evacuated Tube


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
StructureAll-glass concentric tube geometry
Glass MaterialBorosilicate glass
Net Weight1.3kg1.7kg2.4kg3.2kg
Outer Tube Diamter47475870
Inner Tube Diamter37374858
Wall Thickness1.6mm
Transmittance of Outer Tube0.93
Factory Direct Solar System Evacuated Tube

Packing & Delivery

Packing Details
Standard export package or pack it according to customers special request
Factory Direct Solar System Evacuated Tube

Delivery Details
Within 7 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. 

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

Dezhou Gaia Solar Energy Co.,Ltd

Room 712, Baitiane Plaza, No.7 of HuBinnan Road, Dezhou City, Shandong Province



Mobile: 0086-13953485199

Skpy: gaiasolar



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