●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.

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㎡)