Inside each vacuum tube of our advanced solar water heaters, a U-shaped pipe facilitates a seamless flow-through design, ingeniously connected to the
header pipe within the manifold. This U-shaped pipe is meticulously seamed within an aluminum heat transfer fin,
positioned in the vacuum tube's interior to ensure efficient heat transmission from the inner tube directly to the U-pipe.
Solar radiation effortlessly penetrates the outer glass layer and is expertly captured on the outside surface of the inner glass tube through a
highly selective sputter coating. This optimally captured solar energy is then transmitted to a flush-contact
aluminum shield, subsequently reaching a copper pipe filled with heat transfer fluid. The 360-degree aluminum heat
transfer fin guarantees the swiftest energy transfer, maximizing efficiency.
| 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. Crafted from premium borosilicate glass meeting ISO3585:1991 standards; this glass offers an impressive transmittance of 0.92. The solar selective absorptive coating boasts a remarkable absorbance of 0.94 and a hemispherical emittance of 0.08. Complies with GB/T9505-1998 for the getter.
2. Start-up temperature: Maintains an efficient operation starting at a mere 25°C.
3. Start-up time: Experience swift initiation, taking no longer than 2 minutes under optimal sunshine conditions.
4. Low temperature resistance: Engineered to endure temperatures as low as -30°C without any fractures.
5. Heat impact resistance: Demonstrates robust durability, withstanding over three cycles of alternating cold water (below 25°C) and hot water (above 90°C) without damage.
6. Pressure resistance: Built to sustain pressure levels up to 0.6MPa.
7. Hail resistance: Resilient against the impact of hailstones up to 25mm in diameter.
Our Distinctive Advantages:
Our Innovative Production Process:
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