Suntask Low Pressure Solar Water Heater with Assistant Tank with 25 Degree Frame

Basic Info.Model NO.ST20-180(200L)Max. Capacity>200LStructure Compact Type Pressure Unpressurized Interior Material Stainless Steel Collector ComponentsGlass Vacuum TubeComposition Tank Insulation CertificationISO9001, InmetroCapacity80L, 100L, 120L, 150L, 200L, 240, 300LInner TankStainless Steel SUS304-2b/SS316LOuter TankPVDF/Stainless SteelFrameGalvanized Steel / Stainless SteelTubeVacuum Tube Made of Borosilicate GlassOptional Part5L Assistant Tank, Can Feeding Water AutomaticElectric Heater1500W/2000WTrademarksuntaskTransport PackageStandard Carton Box, Wooden Box, Wooden PalletSpecificationstainless steel inner tankOriginChinaHS Code8419191000Product DescriptionAnti Freezing Three Target Vacuum Tube Direct Plug Compact Non Pressure Solar Water Heater ST15-1801. Designed for South Africa2. Inner tank: SUS304 Stainless Steel3. Outer tank: PVDF / Color steel /stainless steel4. Frame: Aluminum alloy / Galvanized steel5. Capacity: 150-360L6. Heat preservation: 60-72h7. Hail resistance: 25mm Storage TankInner TankSUS304-2B food grade stainless steelInner Tank Thickness0.4mmOuter TankPVDF 0.4mm which is good at anti corrosionInsulating LayerPolyurethance Foam 50mmVacuum TubeMaterial of the glass tubeBorosilicate glassAbsorptive CoatingGrade ALN/AIN-SS/CULength of Outer Tube1800mmLength of Inner Tube1755mmOuter Tube Diameter58mmInner Tube Diameter47mmGlass Thickness1.6mmDistance between two tubes 75mmThermal Expension3.3*10-6/ºCAbsorption coefficient 95± 1 %Thermal emsision coefficient5 ± 1 %VacuumP≤5.0*10-3 PaStagnation Temperature>200°CAverage heat loss