Hitek 70mm Direct Flow Tube

Metal-glass direct flow tube with full vacuum inside,which has 20% higher efficiency than ordinary heat pipe tube.

China Hitek Solar Co., Ltd. 

Features

1. This is Full Vacuum Tube with Direct Flow Pipe.

2. High heat efficiency, 15% higher efficiency than normal vacuum tube.

3. The direct flow pipe is made up by two concentric single-wall-tubes.

4. Cold water follows through the inner tube from upside down and flows out to the collector from the bottom through the space between the inner & outer tube, taking the heat made by the absorber.

5. It could be installed at any angle, even horizontally, while normally heat pipe tube should be installed at 30°-90°

Details

Technical Data

Model	DFC-70-10 A	DFC-70-15 A	DFC-70-20 A
Number of Tubes	10	15	20
Gross Area	2.22 m2	3.22 m2	4.22m2
Absorber Area	1.04 m2	1.56 m2	2.08 m2
Weight	49 kg	66kg	90kg
Size	2000×1110 mm	2000×1610mm	2000×2110mm
Max Working Pressure	6 bar
Max Stagnation Temperature	250°C
Absorber coating	SS-ALN-CU (σ>0.95  ε<0.05 )
Long-term Vacuum	10-8 bar
Manifold Shell	Frosted Aluminum Alloy (Grey or Black Painting)
Insulation	Rock wool, 55mm thickness
Frame	Aluminum Alloy or Stainless steel
Recommended Installation Angle	0°~ 90°

Hitek 70mm Direct Flow Tube