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Huayang stainless steel pressure solar water tank use SUS316 .The heater collector and the water tank is seperated, that makes the system combine with the building perfectly.You can chooose without coil , singel coil , double coils is also optional ( the capacity above 150L)The heat insulation material: Polyurethane
 

The tank is loacated in the building, the hot water loses less energy than the normal one.
The heater collector and the water tank is seperated, that makes the system combine with the building perfectly.
Back up with electric heater so that in the day without sunshine hot water can also used.

Single coil solar water tank
Model
ST-150
ST-200
ST-250
ST-300
ST-400
ST-500
Rated capacity(L)
150
200
250
300
400
500
Inner tank
SUS316
thickness of inner tank(mm)
1.2
1.2
1.2
1.2
1.5
1.5
Outer tank
Color painted steel
thickness of outer  tank(mm)
0.4
heat exchanger
SUS316
diameter of heat exchanger(mm)
¢16
Rated woking pressure(bar)
4bar
Testing pressure
10bar
Electrical heater
1.5kw/2.5kw
 
double coils  solar water tank
Model
ST-150
ST-200
ST-250
ST-300
ST-400
ST-500
Rated capacity(L)
150
200
250
300
400
500
Inner tank
SUS316
thickness of inner tank(mm)
1.2
1.2
1.2
1.2
1.5
1.5
Outer tank
Color painted steel
thickness of outer  tank(mm)
0.4
heat exchanger
SUS316
diameter of heat exchanger(mm)
¢16
Rated woking pressure(bar)
4bar
Testing pressure
10bar
Electrical heater
1.5kw/2.5kw