Unpressure solar water heater

Unpressure solar water heater, solar water heater, vacuum tube solar water heater 1. Inner tank:1).Materials:SUS304/2B, food grade stainless steel; 2).Welding procedure: completely auto argon arc welding; 3)Cover of inner tanks: curved outwards to bear higher pressure2. Outer tank 1).Materials: color steel 2)Production procedure: sheet are jointed-up after crimping;3.Insulation layer 1).Materials: polyurethane , environmentally friendly 2).procedure: Using CNC constant temperature, constant pressure quantitative foaming, curing processing, thick insulation layer, ensure the quality more close, well-balanced, insulation more abiding.4. Supporting stand Materials: Galvanized stainless or color steel5.Evacuated tubes 1).Three-target all-glass vacuum heat collection tube (coating: CU/SS-ALN(H)/SS-ALN(L)/ALN ) 2).Single target All-glass vacuum heat collection tube ( coating: AL/AL-ALN(H)/AL-ALN(L)/ALN )6.Packing: Export standard CartonsModelAperture area (m2)Vacuum tubeCapacity (Liters)Qty. per 20’ / 40’ ContainerDiameterLengthNo.NA-90-47/1500-161.0847mm1500mm169073/146NA-100-47/1500-181.2147mm1500mm1810060/120NA-110-47/1500-201.3447mm1500mm2011056/112NA-130-47/1500-241.6147mm1500mm2413047/94NA-165-47/1500-302.0247mm1500mm3016539/78NB-130-58/1800-161.6158mm1800mm1613049/78NB-145-58/1800-181.8158mm1800mm1814542/84NB-165-58/1800-202.0158mm1800mm2016538/76NB-200-58/1800-242.4158mm1800mm2419533/66NB-240-58/1800-303.0158mm1800mm3024027/54