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solar flat plate collector Copper Header Pipes(mm) 22*1.0Copper Riser Tubes(mm) 10*0.7No. Of Riser Tubes 8Absorber structure, copper full-surface absorberSpectrum Absorber Coating blue titanium coating (Tinox)Absorption Rate of Absorber 95%±2%Emissivity of Absorber 4%±1%Welding Between Absorber And Tubes whole-plate ultrasonic weldingInsulation Material 40 mm rock wool with aluminum foil fabric Frame δ1.5mm,aluminum alloy frameFrame Color silver, blackCollector Mounting flat roof/pitched roof/balconyCover Glass low iron textured tempered glassGlass Transmittance >92%Cover Thickness 3.2mmMatched Water(l) 100L-150LWater Temperature In Sun Day 50-90 centigrade degreeHighest Working Temperature 170 centigrade degree Working Pressure 0.6MPaTesting Pressure 1.2MPa, keeping 15 minutesGross Area 2m2Aperture Area 1.84m2Heat Transfer Fluid portable water and other heat transfer fluid Fluid Volume(l) 1.5LBack Sheet 0.7mm galvanized plateSealing Material EPDMNet Weight(kg) 37Gross Weight(kg) 37.5Net Dimension L*W*T(mm) 2000*1000*88Package Dimension(mm)carton 2010*1010*90