Galvanized Steel Low Pressure Vacuum Tube China Solar Geysers

Product Description Detailed PhotosInner Tank Material:Food grade SUS304 2B or SUS316LInner Tank Diameter:Φ360mm;Φ370mm;Φ380mm;Φ420mmInner Tank Thickness:0.31mm;0.38mm;0.4mmOuter Tank Material:SUS304;SUS316Outer Tank Diameter:Φ460mm;Φ470mm;Φ480mm;Φ520mmInner Tank Thickness;0.4mm 0.45mm 0.5mmTube Number:8/10/12/15/18/20/24/30/32/36/40Frames (Stand Parts):Galvanized plate, Stainless steel or Aluminum alloyInsulation Thickness:50mm,55mm,60mm  Product ParametersDescriptionCompact Pressurized solar water heaterMaterial of out tank0.4mm thickness color steel/ sus 201BAMaterial of inner tankFood grade 1.0-1,5mm mm thickness SUS304-2B or 316LTank insulating layer50-55mm 45kg/m high-density polyurethane foamedInlet and outlet holeMale G 1/2. 3/4Max pressure solar 0.6Mpacollector tube3.3 Borosilicate glass with N/Al coatingThickness of glass  1.6mm/1.8mm/2.0mm/2.2mm tube Vacuum tubeP