Pre-heated solar water heater

Pre-heated solar water heater(SBT-PH): Specifications 1)Inner tank: Stainless steel--1.2mm 2)Outer tank: Stainless Steel-0.4mm 3)Vacuum tube: QB-AL-N/AL-Ø58-850mm 4)Frame:Galvanized steel 1.5mm 5)The masterial of insulation: Polyurethane 60mm 6)The reflector: Aluminum component; AL99.85% surface oxidation 7)Copper coil: ø 12mm, thickness 1.0mm 9)Water tank capacility:100L:150L:200L:250L:300L Main Features 1)High efficiency,a special heat exchanging mode is adopted to avoid mixedeffect,so cold water can be heated at any moment. 2)Water pressure is same as tap water, it can be connected directly to city water system 3)Green and economical,no pollution in working,no cost of hot water 4) Specially fitting in the areas of acid rain, seawind erosion by salt and bad weather conditions Working principle One copper coil is installed in the tank as the heat exchanger,when water flows into the copper coil,it absorbs the heat of the water in the tank via copper coil ModelTube(mm)Length(mm)NO.of tubesCapacity (L)People(No.)Loading in 20GP/40GP/40HQSBT-PHØ581800 18pcs150L3-439/78/98setsSBT-PHØ581800 20pcs168L4-533/69/81setsSBT-PHØ581800 30pcs249L5-630/64/75setsSBT-PHØ581800 36pcs300L6-725/52/62sets