CE, ISO, Keymark, five years warranty, 6years export experience, manufacture since 2000
Qal solar water heater advantages:
1> CE, ISO. Five years warranty, long life span
2> Most competitive price and high quality
3> Quality assurance comply with ISO 9001-2008
4> Product quality in compliancee with CE
5> Fast delivery and rich export experience
6> OEM and ODM service
Solar water heating system details
Model: QAL-LG-30
Description | Aluminum alloy Solar Water Heater | | Iner tank | Stainless steel SUS 304(0.31-0.6)mm | | Outer tank | Painted steel | | Assistant tank | Painted steel (3L/5L) | | Insulation | Polyuerthane foam | | Tank diameter | 460mm | | Tube quantity | 30 tube 58x1,800mm | | Tank capacity | 300L | | Lighted Area | 4.68 mx2 | | Bath(people 1 day) | 6-7 | | Angle | 27°-45° |
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QAL solar water heaterheating/collector tube details:
1>QAL solar water heater/heating/collector tube structure: All-glass double deck co-axial structure
2>Tube size of our solar water heater/heating/collector: 58*1800mm, or 47*1500mm
3>Our solar water heater/heating/collector glass material: High orosilicate 3.3 glass
4>QAL solar water heater/heating/collector tuter tube diameter and glass thickness: Ø 58± 0.7mm; Glass thickness 1.6± 0.15mm
5>Inner tube diameter and glass thickness: Ø 47± 0.7mm; Glass thickness 1.6± 0.15mm
6>Absorptive coating property:
*Structure: Cu/SS-ALN(H)/SS-ALN(L)/ALN
*Sediment method: Three targets magnetron sputtering plating
*Specific absorption: 0.93-0.96(AM1.5)
*Emission ratio: 0.04-0.06(800C± 50C)
*Vacuum tightness: 5.0× 10¯ ³ PA
*Idle sunning property parameters: 260-300 m² . C/KW
*Average heat loss coefficient: ULT=0.4~0.6W/(M 2.0 C)
*Resistant Hail≤ 25mm
*Useful life15 years
QAL solar water heater/heating/collector tank details:
1>Our solar water heater/heating/collector tank size:
Out tank diameter: 460mm, 470mm, 500mm or customized
Inner tank diameter: 360MM, 370mm, 400mm or customized
2>Material of QAL solar water heater/heating/collector:
Out tank: Stainless steel: SUS201, 304
Inner tank: Stainless steel SUS304-2B
3>Tank insulatiing layer of QAL Solar water heater/heating/collector: 50mm-60mm wtih high density or customized.
4>Welding of QAL Solar water heater/heating/collector: Argon arc welding
5>Our solar water heater/heating/collector tank structure: Inlet, outlet(at both oppsote sides), drain(at bottom) & air vent(at top) connections3/4 inch BSP diameter& protective TIG welded with inner tank.
We have these series as bellow ,also,you can use our company's website : www.china-nicesolar.com more products waiting for you.
Solar water heating system optional accessories:
1. Assistant tank: 3/5/8/10/12/15/20L(Painted /stainless steel)
2. Controller
3. Electrical heater: 1.5/2/2.5kw
Model | Glass vacuum tube | capacity ( L ) | CBM |
| diameter ( mm ) | length ( mm ) | tubes ( Pcs ) |
| QAL-LG-58-1800-18 | Φ58 | 1800mm | 18 | 180 | 0.62 |
| QAL-LG-58-1800-20 | Φ58 | 1800mm | 20 | 200 | 0.7 |
| QAL-LG-58-1800-24 | Φ58 | 1800mm | 24 | 240 | 0.85 |
| QAL-LG-58-1800-30 | Φ58 | 1800mm | 30 | 300 | 1 |
| QAL-LG-58-1800-36 | Φ58 | 1800mm | 36 | 360 | 1.2 |
If you're interested in it,contact us or leave a message to us about it.
Any question,please tell us ,we're so glad to help you.
Our Add:Industrial Park of TongYuan Town,Haiyan,zhejiang Province,China.
Fax:0086-0573-86617722
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.
