solar water heater
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stainless steel plates
'Inner and outside water tank shell all are made of SUS3042B food grade stainless steel plates, welded by argon arc. Water is pure and drinkable.
'Heat insulation of water tanks adopts polyurethane foam, thickness is 55mm
'Silicon rings to connect and seal them
'The tubes and supports are adjustable, power bearing is average, and can assure the vacuum tubes to use long time.
'Whole glass vacuum tubes adopt super hard borax and silica glass
'Absorb rate:=93%, thermal radiation rate:=6%(100?)
'Resist 25mm hail, using life can last 15 years.
'Temperature when exposed to sun without water:250?,2.5hours to boiling if using single tube
'If you use electrical appliances to aid heating, to switch off the power supple before bathing.
'To test the water temperature before using, in order to avoid scalding.
(m2) vacuum tube Cubage
(kg) Qty. per20'/40'
diameter length No.
420-1500/47-18-CF 1.95 47mm 1500mm 18 100 62 60/116
420-1500/47-20-CF 2.2 47mm 1500mm 20 111 68 56/108
420-1500/47-24-CF 2.55 47mm 1500mm 24 133 76 47/91
420-1500/47-30-CF 3.1 47mm 1500mm 30 166 86 37/95