Solar Geyser Energy Collector (Keymark BV CE SGS I

Solar Geyser Energy Collector (Keymark BV CE SGS ISO approved) Specifications 1) Evacuated Tube Solar Collector ModelsDia.47×1500mmDia.58×1800mmWeight1.35±0.12kg2.29±0.18kgStructureAll glass coaxial double-layer tubesAll glass coaxial triple-layer tubesOuter tube diameterDia.47±0.7mmDia.58±0.7mmInner tube diameterDia.37±0.7mmDia.47±0.7mmOuter Tube thickness1.6±0.15mm1.8±0.15mmInner tube thickness1.6±0.15mm1.6±0.15mmTubes length1542±4mm1812±4mmMaterial of tubeHigh borosilicate glass 3.3High borosilicate glass 3.3Material of coatingAl-N/AI-SS-Cu or Al-N/AlAl-N/AI-SS-Cu or Al-N/AlAbsorptance0.94 0.960.94 0.96Emittance0.04 0.060.04 0.06VacuumP≤5×10-3paP≤5×10-3paTransmittance of Outer Tube0.910.91Stagnation temperature (height)270 300°C270 300°CHeat-loss coefficient≤0.6w/ (m2*°C)≤0.6 w/ (m2*°C)Bearing hailstone abilityhailstone diameter Dia.25mmhailstone diameter Dia.25mmPressure-endure ability1MPa1MPa 2) Hot Water Storage Tank Inner tankMaterial SUS304-2B food grade Thickness 0.5mm Out shellMaterial Al-Zn-alloy-coated color sheet Thickness 0.5mm Insulation layerThickness 55mm CFC free polyurethane FrameMaterial Galvanized steel Thickness 1.5mm Inlet outlet dimensionG G1/2’’