1. U pipe solar heat collector
2. EN 12975 tested and SOLARKEYMARK certified
3. U pipe with high performance

Working principle of U pipe solar heat collector (SPU):

In each vacuum tube there is a U pipe with direct flow-through that is connected to the header pipe inside manifold. This U pipe is seamed in an aluminum heat transfer fin in the interior of vacuum tube that transmits the heat from the interior tube to the U pipe.

Solar radiation permeates the outer glass tube and is captured on the outside of inner glass tube by highly selective sputter layer. The captured solar radiation is transmitted to flush-contact aluminum sheild and then copper pipe filled with heat transfer fluid. The 360° Aluminum heat transfer fin assures the fastest energy transfer.

Each U pipe solar collector is individually tested for leakage and other defects. Anodized aluminum case and frame ensure no corrosion will happen to U pipe solar collector.

Advantages:

1. No efficiency decrease during service life time

2. No external pipe lines

3. One-side in-/outlet and hence only one roof penetration

4. Best possible insulation

5. Anodized aluminum casing and frame and anti corrosion

6. Angle adjustable frame

7. Pre-assembled unit and no tube assembling is necessary

8. Ideal for both flat roof and inclined roof

9. Pre-assembled packing

10. Operate with water pressure up to 9 bar.