200L unpressurized evacuated tubes solar water heater for family use

                Solar Water Heater Detailed specification

Description

 Non-pressurized solar water heater

Outer tank

 Special anti-corrosion white steel plate -0.32mm thickness

Inner tank

 SUS304-2B food grade stainless steel

 Inner tank can endure the acid and alkaline   

   quality water

 0.31mm thickness

Tank capacity

90L-300L

Structure of tank:

 4holes for air vent,overflow,water inlet 

and   outlet,electric heater

Insulation

 50 - 55mm thickness high density polyurethane foam

Vacuum Tube

Glass Material

High borosilicate 3.3 glass 

Structure

All-glass double-tube co-axial structure

Heat-absorbing layer

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

Interval

6.7cm (Φ47x1,800mm) /7.7cm (Φ58x1,800mm)

Vacuum tube quantity

12 / 15 / 18 / 21 / 24 / 30 / 36 pcs

Vacuum tube size

 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)

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:45degree,The best angle: a reasonable 

bracket angle basing on different latitude in order to 

gain more heat

Thickness of bracket: 1.2-1.4mm

2.Material :high quality galvanized anticorrosive

steel plate thickening,it has a better ability to 

endure gravity,and resist storm and hail resistance

Welding:

Advanced argon arc welding

Fastening pieces:

made of stainless steel screw

Heat preservation

72hrs

Hail resistance

¢25mm

Anti-freezing

>-35degree

Customized specifications are welcome