солнечная энергия водонагреватель

solar power water heater 1.CE,ISO9001,CCC, 2. Anti-freezen & USD 8-10 per hole 3. 15Years Warranty for vacuum tube Solar water heater Product Description The characteristic: 1. The design of this type production is according with the international fashion Trend, it is easy to installation and operation. 2. Its' quality is high and structure is strong and reliable, you can enjoy the hot water all-day. 3. The thickened heat preservation layer of high density 4. Large-angle specially adapted to high and cold areas 5.Stronger wind, snow, and hailstone resistant ability 6.More coordinate with the architectural environment 7. Working with pressureTechnical specifications: 1. Outer tank: Painted steel or stainless, 0.4mm 2. Inner tank: SUS304 -2B food grade Stainless steel, 0.35mm 3. The material of insulation: Polyurethane foam 55mm 4. Vacuum tube: 47mm/58mm×1800mm 2100mm×15pcs 36pcs 5. Frame: Aluminum alloy or stainless steel 6. Heat preservation: 72h 7. Absorb rate: =93%, thermal radiation rate: =6% 8. Hail resistance: 25mm 9. Capacity: From 150L to 360L 10. Tank diameter: 420mm, 460mm, and 490mm 11. Life time: 15years