Water Heater Tube / Solar Vacuum Tube
Product Details
The solar tube is made from borosilicate glass 3.3 and the structure of solar vacuum tubes is as same as the gallbladder of the pot, which is sealed with double glass and the double glass tube is
pumped into a high-vacuum. The surface of inner glass is sprayed with selective coating through a special technology. The solar energy absorption rate can reach 94.5percent by the usage of the
selective coating, while the rate of thermal radiation below 5.5percent. Vacuum tube absorbs solar energy, and then heats the water or liquid by heat conduction. The heat loss of liquid is very low
through the high-vacuum between inner glass tube and outside, Its stagnation temperature is above 200 degrees. It is widely used in solar water heater, solar collecotor, solar projects.
Specification
Outer Diameter and Inner Diameter (MM) 47 / 37 58 / 47
Length of Tube (MM) 1500, 1600, 1800, 2100
Thickness of Tube (MM) 1.60 more or less 0.15
Selective absorbing surface: 3layers, aluminum-nitrogen-carbon (Al-N-C)
Material: Borosilicate glass 3.3
Color: Blue
Thermal Expansion: 3.3 multiply 10-6 / k
Maximum Strength: 0.6 Mpa
Absorption of Selective Coating: Above 95 percent
Emission of Selective Coating: Below 5 percent
Stagnation Temperature: Above200m2 degree / KW
Solar Irradiation for Water Temperature Rise below 3.0mj / m2
Coefficient of Average Heat Loss below 0.70w / (m2 degree)
Vacuum above 3.0 multipy 10-2Pa (anti heat loose)
Water Heater Tube / Solar Vacuum Tube
Water Heater Tube / Solar Vacuum Tube
*Fast heating ,antin-corrosion
*easy installation
Experience of export to 79country
- tube material:High Borosilicate glass3.3
- Model Number:LQ-HO-A62
- Brand Name:Longquan Solar & OEM service
- Place of Origin:Jiangsu, China (Mainland)
- Country:China (Mainland)
- telephone:86-519- 82446226
| Delivery Time: | 15 working days for container ,7 working days for sample |
| Package: | Carton box |
| Supply Ability: | 15000 Piece/Pieces per Day |
| Minimum Order Quantity: | 1 Piece/Pieces |
| Payment Terms: | L/C,T/T |
| Port: | Shanghai or Ningbo |
| Fob Price: | US$7-99999Shanghai or Ningbo |
| tube material: | High Borosilicate glass3.3 |
| Model Number: | LQ-HO-A62 |
| Brand Name: | Longquan Solar & OEM service |
| Place of Origin: | Jiangsu, China (Mainland) |
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