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   SOLAR WATER HEATER
　


    

　

　

　

　

　

　

　

　

　

　

　

Solar Water Heater
  
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　 Glass evacuated tube Technique specification
Material:borosilicate glass according to ISO3585:1991;transmittance of borosilicate glass:0.92.Absorbance of solar selective
absorptive coating:0.94;Hemispherical emittance:0.08;Getter according to GB/T9505-1998.
Start-up temperature:no more than 25.
Start-up time:no longer than 2 minutes under normal sunshine.
Low temperature resistance:no breaks at-30
Heat impact resistance:no damages after over 3 times'alternative impacts of cold water below 25 and hot water over 90.
Pressure resistance:cam withstand 0.6Mpa.
Hail resistance:no damage by the impact of Φ25mm hail.
Appearance standard:the color of the selective absorptive coatings should be even,and the coatings should have no wrinkles
and peelings.The allowed tolerance of borosilicate glad tube's diameter should be in accordance with ISO4803:1978.camber of
the borosilicate glass tube should be no more than 0.3%.
The translation the borosilicate glass tube,which is 40-60mm away from flange end,should be round.The ratio of the longest to the shortest radial dimensions of the borosilicate glass tube should be no more than 1.02.		 　
　 　 　
　
MODEL
Lighting
(m2)
Heat-pipe vacuum tube
Supply hot water
(L/≧)
Qty.per 20'/40'
Container
diameter
length
No.
SPA-1800/58-10-C
15
Φ70mm
1700mm
10
120/60
170/334
SPA-1800/58-20-C
3.1
Φ70mm
1700mm
20
223/60
85/168
SPA-1800/58-30-C
5.2
Φ70mm
1700mm
30
300/60
56/115