250 Liter Capacity System Capacity (L): 250 -Inner tank material: food grade SUS 304-2B stainless steel. -Inner tank dimensions: 450mm, T1.5mm. -Outer tank material: thick colored steel. -Tank outer diameter: 550mm, T0.55mm. -Tank insulation layer: 50mm high density polyurethane foam. -Foam density: minimum 42 kg/m3. -Heat retention: 96 hours. -Coil material: 12*T1.0mm copper coil. -Inlet and outlet pipe: G 3/4" male screw, SUS 304-2B stainless steel, thickness 2.5 mm. -Tank welding: Argon arc welding. Solar collector -Vacuum tubes: SS-C/CU selective coating, 58X1800 mm glass tube, thickness 1.6 mm. -Insulation: high density polyurethane foam, T35mm and aluminum silicate, T25mm. -Outer cover material and thickness: aluminum alloy, T1.8mm. -Tube diameter and thickness: 35mm, T1mm. -Heat pipe material and thickness: TU1 purified copper, T0.6mm. -Support material and thickness: Flexibility for flat or sloped roof -Pipe caliber: 22mm. -Gasket: high quality silicone rubber polymer. Work station -GRUNDFOS circulation pump: low noise, high efficiency, long operating time. -Flow meter: Regulates the circulation medium flow. -Intelligent control: SR881 controller controls the entire system automatically and intelligently. -Expansion vessel: regulates the working pressure of the system when the medium expands due to heat. -Safety valve: stable working pressure at 0.6Mpa, to ensure the safety of the system. -Other accessories: Pressure gauge, flexible stainless steel pipe for connection with the expansion vessel. -Length of the second coil (m): 30. -Quantity of tubes: 25.
