Мощный Солнечная система нагрева воды

solar water heating system Groupware: Water tank,heat pipes,electric controller,circulating pump,expension tank. Material: Inner tank material:SUS304-2B stainless steel 1.5mm thickness,food grade,innocuity. Outer tank material:color steel 0.5mm thickness,antirust. Insulation layer:High density polyurethane foaming,50mm thickness.With red copper coil wrapin it. heatpipe material: borosilicate glass,with a red copper heat pipe in it. heat pipeQTY:40pcs. Available vacuum tube QTY:10/15/20/25/30/35/40/45/50pcs Available tank capacity: 100/150/200/250/300/350/400/450/500LPipeQTY(PCS)Tankcapacity(liters)10100L15150L20200L25250L30300L35350L40400L45450L50500L Vacuum tube size:Φ 58mm*1800mm(Length). Bracket material:zinc coatedsteel,1.5mm thickness,antirust. The glistening obliquity:0-90 degree Hail resistance:25mm. Wind stress:180km/h Freeze protection:-25 degree.