2013 New solar water heater /2 water tank/assitant tankTake order even 1 pcs. paypal acceptable.Non-pressurized Solar Water Heater TECHNICAL DATAWATER STORAGE TANKS SPECIFICATIONMaterial of out tankHigh quality Painted steel/ Stainless steel.Material of inner tankFood grade SUS304-2B stainless steel.Tank insulating layerImported polyurethane can conserve the heat for maximum 72 hoursInlet and outlet holeMale G 1/2Tank size420,460,470,475,480,500mm or Customer demandWelding:Argon arc weldingEVACUATED VACUUM TUBES SPECIFICATIONTube structureAll-glass double deck co-axial structureGlass materialHigh borosilicate 3.3 glassOuter tube dia. & thickness?58ñ0.7mm; Glass thickness 1.6ñ0.15mmInner tube dia.& thickness?47ñ0.7mm; Glass thickness 1.6ñ0.15mmTube size58*1800mmAbsorptive coating propertyStructureAL/AL-ALN(H)/AL-ALN(L)/ALN or Cu/SS-ALN(H)/SS-ALN(L)/ALNSediment methodSingle target or Three targets – magnetron sputtering platingSpecific absorption0.90-0.93(AM1.5) / 0.93-0.96(AM1.5)Emission ratio0.05-0.075(800Cñ50C) / 0.04-0.06(800Cñ50C)Solar irradiation for obtaining a preset water temperatureè=58 Hó4.7MJ/mýÿÿÿÿÿ H=4.1-4.4MJ/mý / H=3.7-4.2MJ/mýVacuum tightness5.0?10?? PaIdle sunning property parameters220-260 mý.C/KW / 260-300 mý.C/KWAverage heat loss coefficientULT=0.6~0.7W/(M2.0C) / ULT=0.4~0.6W/(M2.0C)Resistant Hailó25mmUseful life15 yearsBRACKETBracket:Stronger galvanized steel / Stainless steel/aluminium alloyBracket angle:0,18,22,38,45 optional, pitched roof, flat roof optional.Fastening pieces:Made of zinc-coated stainless steel..MODEL No.Tube SizeTube No.Tank CapacityAperture AreaÿÿÿÿÿReommending for familyLoad Qty 20GP/40HQÿÿÿÿÿDia.*L( m2)(m3)(sets)JXNP-58-1058*1800mm101000.93277/184JXNP-58-1258*1800mm121201.11264/153JXNP-58-1558*1800mm151501.39352/123JXNP-58-1858*1800mm181801.67443/102JXNP-58-2058*1800mm202001.86539/92JXNP-58-2458*1800mm242402.23632/77JXNP-58-3058*1800mm303002.79726/61JXNP-58-3658*1800mm363603.34821/51