Vacuum tube low-pressure SWH
Rely on the natural circulation principle,Hot water rises naturally into the tank,while cold water flows down from . tank to vacuum tubes,causing circulation throughout the system.
Installation model :
Advantage
●Inner water tank (interior)are made of SUS304-2B food grade
● Whole glass vacuum tubes adopt super hard borax
stainless steel plates(thickness 0.5mm), out shell (exterior)
and silica glass.
are made of colored steel plate (thickness:0.5mm)
● Absorb rate:=93%,thermal radiation rate:=6%(100℃)
welded by argon arc.Water is pure and drinkable.
● Resist 25mm hail,using life can last 15 years.
● Heat insulation of water tanks adopts
● Temperature when exposed to sun without water:
polyurethane foam,thickness is 55mm.
250℃,2.5hours to boiling if using single tube.
● Silicon rings to connect and seal them.
● If you use electrical appliances to aid heating,to
● The tubes and supports are adjustable,power
switch off the power supple before boiling.
bearing is average,and can assure the vacuum
● To test the water temperature before using,in order
tubes to use for long time.
to avoid scalding.
Technical Specification
Model
Absorbing
Vacuum Tube
Tank
Qty (Sets)
Area(㎡)
Diameter
Length
No.(pcs)
Capacity
20"
40"
SKY420-1500/47-15
0.75
Φ47mm
1500mm
15
85L
66
137
SKY420-1500/47-18
0.9
Φ47mm
1500mm
18
100 L
56
135
SKY420-1500/47-20
1
Φ47mm
1500mm
20
111 L
50
105
SKY420-1500/47/24
1.20
Φ47mm
1500mm
24
135 L
44
92
SKY420-1500/47/30
1.50
Φ47mm
1500mm
30
166L
36
75
SKY470-1800/58-16
1.37
Φ58mm
1800mm
16
140L
44
91
SKY470-1800/58-18
1.44
Φ58mm
1800mm
18
150L
39
81
SKY470-1800/58-20
1.60
Φ58mm
1800mm
20
165L
35
73
SKY470-1800/58-24
1.92
Φ58mm
1800mm
24
200L
30
62
SKY470-1800/58-30
2.40
Φ58mm
1800mm
30
250L
24
50
Note :
Area is the part of the collector that actively absorbs the light rays.For solar tubes this is defined as the cross-sectional area of the inner tube (selective coated) measured using the outside diameter. (Eg. 0.047×0.72m=0.08㎡)
Element part (optional)
Solar Controller heating elements Assistant tank Mg Anode