solar water tank SUS304 inner and outer tank

solar water tank SUS304 Capacity: 100-500 Liters Type of tank: Pressurized, vertical or horizontal, working pressure up to 650Kpa (6.5bar) The tank body: - SUS304stainless steel. thickness 1.0-2.0mm The outer cover: - Multi-color steel board, thickness 0.6-1.0mm The insulating layer: -50mm high density polyurethane. -The heat exchanger: -Copper coil in OD12mm, single coil or twin coils Model No.:ST-150AST-200AST-250AST-300AST-400AST-500ACapacity150 Liters200 Liters250 Liters300 Liters400 Liters500 LitersTypeVertical / horizontalVertical / horizontalVertical / horizontalVertical / horizontalVertical / horizontalVertical / horizontalInner tank & thickness1mm SUS304 2B, food grade stainless steel1.5 mm SUS304 2B, food grade stainless steel1.5mm SUS304 2B, food grade stainless steel1.5mm SUS304 2B, food grade stainless steel2.0mm SUS304 2B, food grade stainless steel2.0mm SUS304 2B, food grade stainless steelOuter cover & thickness0.5mm multi-color painted steel0.5mm multi-color painted steel0.5mm multi-color painted steel0.6mm multi-color painted steel0.6mm multi-color painted steel0.6mm multi-color painted steelAuxiliary electric heater1.5KW2KW2KW2.5KW2.5KW2.5KWHeat exchanger (option)Copper coil: out dia. 12mm x 1mm (thickness) Length = 15 metersCopper coil: out dia. 12mm x 1mm (thickness) Length = 20 metersCopper coil: out dia. 12mm x 1mm (thickness) Length = 25 metersCopper coil: out dia. 12mm x 1mm (thickness) Length = 30metersCopper coil: out dia. 12mm x 1mm (thickness) Length = 35 metersCopper coil: out dia. 12mm x 1mm (thickness) Length = 40 metersInsulation50mm high density polyurethane50mm high density polyurethane50mm high density polyurethane50mm high density polyurethane50mm high density polyurethane50mm high density polyurethaneWorking pressure6.5 bar6.5 bar6.5 bar6.5 bar6.5 bar6.5 barSafety valve6 bar safety valve6 bar safety valve6 bar safety valve6 bar safety valve6 bar safety valve6 bar safety valve