Solar Heater Details:
Model: QAL-CP-24
Solar heater features
1. Adopts the best conduction performance metal- heat pipe (copper)
2. Can be used all year round in the cold climate
3. High efficiency, rapid warming. Heat pipe in vacuum tube could transfer hot energy to cold water in pressurized solar water heater tank rapidly
4. The whole pressure of the system is up to 1.5kg/M2, the inlet could connect the tap water directly, the max pressure can be 0.6Mpa
5. No water in the tube, one tube broken don't influence the system working
6. The design for inner tank is reasonable and scientific, which could hold 100, 000 times fatigue test without any damage
7. Dual-purpose brackets for both flat and inclined roof
8. The system is pressurized, it keep a constant temperature of water in the tank, avoid the problem came from water level controller malfunction which could cause water flow out
Solar heater working principle
1. The solar heater tank has no exhaust hole, therefore, it must bear the pressure came from tap water and hot water, when use, the hot water comes out because of water pressure.
2. Vacuum tube absorbs solar energy, and conductive copper pipe transfers the heat into the pressurized solar water heater tank. In this case, the water inside the tank becomes hot
3. No water in the heat pipe makes the whole system could bear pressure
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Description |
Compact pressurized solar water heater |
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Material of out tank |
0.31-0.4mm thickness color steel/ fluorine carbon steel |
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Material of inner tank |
Food grade1.2-2.0mm thickness SUS304 stainless steel |
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Tank insulating layer |
55mmthickness 45kg/m³ high-density polyurethane foamed |
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Max pressure |
0.6 Mpa |
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Inlet and outlet hole |
Male G 1/2,3/4 |
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Solar collector tube |
3.3 Borosilicate glass with N/Al coating |
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Thickness of glass tube |
1.6mm |
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Vacuum tube tightness |
P≤0.005 Pa |
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Absorption |
as=0.93-0.96 (AM1.5) |
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Emission ratio |
εh=0.04-0.06 (80C±5C) |
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Idle sunning property parameters |
Y=220~260m2.C/KW |
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Average heat loss coefficient |
ULT=0.6~0.7W/(m2.C) |
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Bracket: |
2.0mm thickness Galvanized Steel |
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Structure of tank |
5 holes for air vent,water inlet and outlet, El. Heater and mag. rod |
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Fastening pieces |
Made of stainless steel screw |
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Absorber area |
2.25 m² |
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Tube quantity |
58x1,800mmx24tube with heat pipe |
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Tank capacity |
210L |
From its early beginnings in 2000 Redao (originally called Alinsidun Technologies) is a designer and manufaturer of solar water heating prodcts in China. All of our products are designed to ensure robust performance over a long lifespan. All Redao products are complied with CE, ISO9001-2008.
With our dedicated and experienced team, our specialised manufacturing base, as well as the continued focus on technical solutions and customer service, we are sure that Redao will remain the supplier of choice for many throughout the coming years.
Redao strives to maximize production outputs and quality using the very lastest in manufacturing techniques, and uses equipment with proven reliability and the flexibility to adapt to fast changing requirements of customers. If you are interested in Redao water heater system, please feel free to call us.
Redao brief profile:
2000>Alinsidun establish, the former name of Redao. Production of solar water heater tank begins.
2001>Alinsidun develop its first solar water heater. Rush production begins.
2002>Alinsidun opened sales and distribution office in Shanghai, China.
2003>Alinsidun was awarded "Observing contract & Valuing Credit Star factory" by Zhejiang Quality Examinations and Appraisal Center.
2004>Export production begins.
2005>Alinsidun observed Good Quality control system by Chinese Product Quality Management center. At the same time, Alinston became the mumber of China Solar water Quality Control System.
2006>Alinsidun was awarded "China Solar Water Heater Most Famous Brand" by China Product Quality Management Center.
2007>Alinsitun complied with the Quality Assurance Requirements of ISO 9001-2000
2011>Redao became the company name instead of Alinston, and Redao solar water heaters complied with CE certification. In Aprial, Redao complied with ISO 9001-2008.
2012>QAL mark registered.
