Solarheizung Schweiß

unpressurized solar water heater Features: 1) Stable and reliable performance and well wind resistance 2) Vacuum heat-collecting tubes at high temperature 3) Dual-purpose brackets for both flat and inclined roof 4) Meeting the demand of well-to-do families 5) Economical goods Specifications: 1) Thickness of bracket: 1.5mm 2) vacuum tube: 58 mm x 1.8m 3) Inner tank: SUS304-2B food grade stainless steel 4) Outer tank: PVDF steel 5) Capacity: 90/110/130/150/180/210/240/300/300L 6) Insulating layer thickness: 55 - 60mm 7) Inner tank thickness of: 0.4 - 0.5mm 8) Tank diameter: 460mm 9) Pressure: 0Pa 10) Heat preservation: 72hrs 11) Hail resistance: 25mm