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 Pipe Heaters, Solar System, Solar Tube manufacturer / supplier in China, offering 58*2100 Evacuated Tube Solar Heaters System, 2018 Hot Sale Three Whee Motorl Passenger Electric Tricycle for Adults for Sale/Motorised Tricycle Scooter, Electric Motor Three Wheel Used Pickup Cars for Cargo/Hub Motor Electric Motorcycle Van Three Wheel Cargo Tricycle/Smart Car Pickup and so on.

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Supplier Homepage Products ETC tube 58*2100 Evacuated Tube Solar Heaters System

58*2100 Evacuated Tube Solar Heaters System

Get Latest Price
Purchase Qty. / Reference FOB Price
1,000-5,729 Pieces US $2.56
5,730+ Pieces US $2.32
Port: Tianjin, China
Production Capacity: 7000pieces/Day
Payment Terms: L/C, T/T
Condition: New
Certification: ISO
Application: Air Conditioning System, Solar Thermal, Water Heater
Structure: All-Glass Concentric Tube Geometry
Glass Material: High Borosilicate Glass
Length: 2100mm

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Basic Info

Model NO.: 58*2100-3T
Outer Tube Diameter: 58mm
Inner Tube Diameter: 47mm
Wall Thickness: 1.6mm
Transmittance of Outer Tube: 0.93
Net Weight: 2.4kg
Type: Double Vacuum Heating Tube
Pipe Material: Glass
Pressurized: Pressurized
Trademark: Gaia Solar
Transport Package: Export Standard Packing
Specification: 58*2100-3T
Origin: Dezhou, Shandong
HS Code: 8419901000
58*2100 Evacuated Tube Solar Heaters System
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%. 
58*2100 Evacuated Tube Solar Heaters System
Product Details


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)

58*2100 Evacuated Tube Solar Heaters System

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


Q1: Can I have a sample for testing?
A: Yes, of courses we can supply the sample for you!

Q2: Can I add  my logo on the water tank?
A: Yes, OEM and ODM are available for us.But you should send us LOGO image.

Q3: How can i get the after-service?
A: We will send you the spare parts by free if the problems caused by us.
If it is the men-made problems, we also send the spare parts,but you should pay.

Q4: Do you have inspection before delivery?
A: 100% self-inspection before packing.

Q5: Can I have a visit to your factory before the order?
A: Sure,welcome to visit our factory.

58*2100 Evacuated Tube Solar Heaters System

Packing Detail
Full container order in high quality export carton or pack it according to customers special request.

Delivery Detail

Within 14 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.

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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