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 shield and then copper pipe filled with heat transfer fluid. The 360°aluminum heat
transfer fin assures the fastest energy transfer.
| Model Name |
SPU |
| Manifold casing material |
Stainless steel / Aluminium |
| Frame material |
Anodized profiled aluminum bar or stainless steel |
| Header pipe material |
Copper |
| U pipe material |
Copper |
| U pipe diameter |
8mm |
| No. of pipes |
10,12,15,18,20,24,30 |
| Aperture area |
For 18tubes system 2.3m2 |
| Insulation |
polyurethane |
| Rubber seals and rings |
UV stabilized high temperature silicon rubber |
| Test pressure |
9 bar |
| Collector mounting |
Flat roof/inclined roof |
| Mounting angle |
30 degree-50 degree |
| Inlet Outlet |
22mm |
| Gross weight |
70KG(for SPU-H58/1800-18) |
1. Borosilicate glass according to ISO3585: 1991; Transmittance of borosilicate glass: 0.92. Absorbance of solar selective absorptive coating: 0.94; Hemispherical emittance: 0.08; Getter according to GB/T9505-1998.
2. Start-up temperature: No more than 25Celsius.
3. Start-up time: No longer than 2 minutes under normal sunshine.
4. Low temperature resistance: No breaks at -30Celsius.
5. Heat impact resistance: No damage after over 3 time's alternative impact of cold water below 25Celsius and hot water over 90Celsius.
6. Pressure resistance: Can withstand 0.6Mpa.
7. Hail resistance: No damage by the impact of 25mm diameter hail.
Our advantages:
Our products process:
Audited Supplier 
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