Feature:

1. Energy efficiency upgraded vacuum tube, generate more heating source;
2. Automatic high temperature high pressure foaming, better thermal insulation, more durable;
3. UV Aging against bracket, suitable for all kinds of roof;
4. Designed with additional water tank, enable more convenient for water affusion.

Specification:
1. Inner tank: SUS304-2B stainless steel, 0.4mm thickness
2. Inner tank diameter: 360mm
3. Outer tank: Stainless steel
4. Out tank diameter: 470mm
5. Capacity of Water Tank: 95L, 120L, 145L, 158L, 188L, 235L, 280L
6. Insulation layer: High Pressure Polyurethane Layer with Thickness of 55mm
7. Foam Pressure: 32kg/m3 minimum
8. Heat preservation: 72-80hrs
9. Frame: Stainless steel with Painting, or aluminum alloy, or stainless steel.
10. Welding: Argon arc welding
11. Vacuum tube type: 3target tube AL-N-AL/SS/CU coated
12. Absorption rate: ≥ 93%, thermal radiation rate: ≤ 6%
13. Outer glass tube diameter: 58mm
14. Inner glass tube diameter: 47mm
15. Length of the vacuum tube: 1800mm
16. Thickness of the glass tube: 1.6mm, super hard borax and silica glass
17. Angle of bracket: 28, 30, 45degree
18. Seal: High quality silicone rubber polymer
19. Hail resistance: 25mm
20. Idle sunning property parameters: 250, 2.5 hours to boiling point

Working Principle
For unpressurized solar water heater
1. This system uses the thermosiphon principle, Solar vacuum tube is pluged into the bottom of water tank;
2. The water is filled inside the solar vacuum tube, Solar vacuum tube transmit solar energy to heat energy;
3. The temperature of water inside solar vacuum tube is rising, As the thermosiphon principle;
4. The hot water rise up, and arrive in the water tank, the cold water inside the water tank go down the solar vacuum tube,
So the system runs by this circulation way until the water become very hot. It's a green product.

Application
1. Hotels, resorts, hospitals and hostels
2. Process industry, boiler feed, laundry and canteens
3. Agricultural sector, hatcheries and dairies
4. Swimming pool heating
5. In-process heating
6. Health clubs (Steam /Sauna)