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

Solar Vacuum Tubes, Vacuum Glass Tube, Solar Water Heating manufacturer / supplier in China, offering Thermal Solar Tube Borosilicate 3.3 Color, 70mm Solar Glass Vacuum Tube, Chinese Factory City Used Autos New 4 Wheels SUV Solar Electric Car and Vehicle, Customized Mobile Food Cart Cafe Trailer Food Truck and so on.

Gold Member Since 2016
Audited Supplier
Supplier Homepage Products ETC tube Thermal Solar Tube Borosilicate 3.3 Color, 70mm Solar Glass Vacuum Tube

Thermal Solar Tube Borosilicate 3.3 Color, 70mm Solar Glass Vacuum Tube

Get Latest Price
Purchase Qty. / Reference FOB Price
1,000-4,049 Pieces US $3.95
4,050+ Pieces US $3.86
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

You Might Also Like

Loading...

Basic Info

Model NO.
70*2100mm
Structure
All-Glass Concentric Tube Geometry
Glass Material
High Borosilicate Glass
Length
2100mm
Outer Tube Diameter
70mm
Inner Tube Diameter
58mm
Wall Thickness
1.6mm
Transmittance of Outer Tube
0.93
Trademark
Gaia Solar
Transport Package
Export Standard Packing
Origin
Dezhou, Shandong
HS Code
8419901000
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%. 

Thermal Solar Tube Borosilicate 3.3 Color, 70mm Solar Glass Vacuum Tube




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)




Thermal Solar Tube Borosilicate 3.3 Color, 70mm Solar Glass Vacuum Tube


Thermal Solar Tube Borosilicate 3.3 Color, 70mm Solar Glass Vacuum Tube


Thermal Solar Tube Borosilicate 3.3 Color, 70mm Solar Glass Vacuum Tube

 
 

Send your message to this supplier

*From:
*To:
avatar Ms. Mandy Li
*Message:

Enter between 20 to 4,000 characters.

This is not what you are looking for? Post a Sourcing Request Now