Each vacuum tube ingeniously harbors a U pipe designed for direct and seamless flow-through, which connects effortlessly to the
header pipe within the manifold. This U pipe is expertly sealed within an aluminum heat transfer fin inside the
vacuum tube, efficiently channeling heat from the inner tube directly to the U pipe, ensuring optimal heat transfer.
Solar radiation gracefully penetrates the outer glass tube, becoming harnessed by the cutting-edge inner glass tube's
highly selective sputter layer. This adeptly captured solar energy is then transmitted to the flush-contact
aluminum shield, subsequently reaching the copper pipe filled with an advanced heat transfer fluid. The robust 360° aluminum heat
transfer fin efficiently guarantees the swiftest transfer of energy, maximizing performance.
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 as per ISO3585: 1991 standards; boasting a transmittance of 0.92. It features a solar selective absorptive coating with an absorbance of 0.94, complemented by a hemispherical emittance of 0.08; all matched with a getter conforming to GB/T9505-1998.
2. Designed to initiate at an impressively low temperature: no more than 25°C, showcasing remarkable efficiency.
3. Exceptional start-up time: fully operational within 2 minutes under normal sunshine, ensuring rapid deployment.
4. Unmatched low temperature resistance: remains unbroken down to a brisk -30°C, exemplifying durability.
5. Superior heat impact resistance: withstands over three cycles of alternating cold water below 25°C and hot water above 90°C without any damage.
6. Impressive pressure resistance: capable of enduring up to 0.6Mpa, designed for resilience.
7. Exceptional hail resistance: undamaged by impacts from hail measuring up to 25mm in diameter, attesting to its robustness.
Our Competitive Edge:
Our Meticulous Production Process: