Description

           unpressurized solar water heater system

Outer tank

Special anti-corrosion coloured steel plate(Galvanized sheet)

OR   Stainless steel

0.33mm thickness

Tank diameter: 420mm / 460mm / 500mm

Inner tank

SUS304-2B food grade stainless steel

Inner tank can endure the acid and alkaline quality water

0.32mm thickness

Tank capacity

90L-500L

Structure of tank:

4holes for air vent,overflow,water inlet and outlet,electric heater,controller

Insulation

50 to 55mm thickness high density(47kgs / m3) polyurethane foam

Vacuum Tube

Glass Material

High borosilicate glass 3.3

Structure

All-glass double-tube co-axial structure

Heat-absorbing layer

Cu/SS-ALN(H)/SS-ALN(L)/ALN

Interval

6.7cm (Φ47x1,500mm)

7.7cm (Φ58x1,800mm)

Vacuum tube quantity

12 / 15 / 16 /18 / 20 / 24 / 30 / 36 pcs

Vacuum tube size

Φ47x1,500mm / Φ58x1,800mm

thickness of glass tube

1.6mm

Absorption

as=0.93-0.96(AM1.5)

Emission ratio

εh=0.04-0.06(80C±5C)

hail resistance

25mm

anti-freezing

-35 degree

Heat preservation

72hours

Idle sunning property parameters

Y=220~260m2.C/KW

Average heat loss coefficient

ULT=0.6~0.7W/(m2.C)

Bracket(Supporting frame)

1.Angle:50,48,45,38.

Thickness of bracket: 1.2-1.5mm

2.Material :high quality galvanized anticorrosive

steel plate thickening

OR Aluminium alloy anticorrosive steel plate thickening

OR Stainless steel

Welding:

Advanced argon arc welding

Fastening pieces:

made of stainless steel screw

Customized specifications are welcome