At the heart of each vacuum tube lies a sophisticated U pipe, featuring direct flow-through connectivity, seamlessly linked to the
header pipe nestled within the manifold. This expertly engineered U pipe is encapsulated in an aluminum heat transfer fin, ensuring
optimal heat transmission from the vacuum tube's interior directly to the U pipe, maximizing efficiency.
Sunlight effortlessly permeates the outer glass tube and is superbly harnessed on the exterior of the inner glass tube by
a cutting-edge, highly selective sputter layer. This captured solar energy is efficiently channeled to a flush-contact
aluminum shield, and subsequently to a copper pipe infused with a dynamic heat transfer fluid. The 360° aluminum heat
transfer fin guarantees unparalleled speed in energy transmission.
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; Enjoys a transmittance rate of 0.92. The solar selective absorptive coating boasts an absorbance of 0.94; Hemispherical emittance stands at 0.08; Equipped with a getter compliant with GB/T9505-1998.
2. Exceptional start-up performance, with the ability to initiate at temperatures not exceeding 25°Celsius.
3. Rapid start-up capabilities, taking no more than 2 minutes under typical sunny conditions.
4. Remarkable low-temperature resilience, enduring without fractures at temperatures reaching -30°Celsius.
5. Impressive heat impact endurance, sustaining no damage after withstanding over three cycles of alternating cold water below 25°Celsius and hot water exceeding 90°Celsius.
6. Robust pressure resistance, capable of withstanding pressures up to 0.6Mpa.
7. Reliable hail resistance, emerging unscathed after impacts from hailstones with a diameter of 25mm.
Our competitive edges include:
The meticulous process behind our products involves: