High-Efficiency U Pipe Solar Water Heater for Pressure Systems

• Customization: Available
• Material: Aluminum
• Certification: ISO9001, CE, CCC, Solar Keymark, Watermark
• Model NO.: SPU
• Usage: Solar Water Heater
• Transport Package: Carton
• Specification: 300L
• Trademark: SUNPOWER / OEM
• Origin: China
• HS Code: 84199010
• Production Capacity: 15000 PCS/Month

Product Description

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 2.3m^2
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.

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