太阳能热水器

1.Outer tank diameter: 420mm(47-1.5m)/ 460mm(58-1.8m)/ 480mm (58-2.0m) 2.Outer tank material: PVDF/colorful plate steel 3.Inner tank diameter: 310mm(47-1.5m)/ 360mm(58-1.8/2.0m) 4.Inner tank material & thickness: stainless steel SUS 304-2B & 0.4mm 5.Support stand: Galvanized steel/Alluminum alloy 6.Insulation: 55mm(47-1.5m)/ 50mm(58-1.8m)/ 60mm (58-2.0m) polyurethane foam 7.Interval: 7cm (47-1.5m) /8 cm (58-1.8m) / 9.5 cm (58-2.0m) 8. Hailstone resistance: 25mmSpecification of tubes:Structure: All glass concentric dual tube structure Glass material : Borosilicate glass Outer tube diameter and thickness: 58±0.7mm/ 1.6mm Inner tube diameter and thickness: 47±0.7mm; 1.6mm Length of tube: 1800(±5mm); Construction: Graded AL-N/AL selective absorbing coating Heat-absorbing rate: >92% Emission of heat :< 8 %( 80) Vacuum degree: P<5x10-3 Pa Solar radiance exposure: ≤2.8MJ/M2 Calories absorption: 9.1MJ/M2 Average heat loss: ≤8.6W/ (M3.K) Pressure-endure ability: 1Mpa