Detailed Product Description

Features

1)The tube structure is between all-glass evacuated tube and metal-glass evacuated
tube with heat pipes.
2)Suitable for frigid zones because there is no water in the tube.

3)Designed for pressure system.

4)Heat pipe material: TP2 copper.

5)The heat collecting part is a vacuum glass tube that lowers heat loss.

6)Stable solar conversion throughout the day, with the round shaped tube allowing
solar penetration from all angles.

Specification:

Length of Tube : 1800mm

Outer Tube Diameter : 58mm

Inner Tube Diameter : 47mm

Glass Tube Thickness : 1.6mm

Tube Thermal Expansion : 3.3 X 10 -6^oC

Absorptive Coating : Graded AI/N/AI

Absorptance > 90% (AM 1.5)

Emittance < 7 % (100°C)

Vacuum P < 5 X 10 -3Pa

Stagnation Temperature >220^oC

Heat Loss < 0.8 W/m2./°C