Original and high quality three-layer solar vacuum tubes
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Quality/Safety Certification: 0.00
Solar vacuum tube
1)ISO9001:2000,CE,CCC,SGS
2)Specific Absorption:92%---96%
3)reliable quality,reaonable price
Original and high quality three-layer solar vacuum tubes
The structure of inner tube
Specifications
| Structure | All-Glass Double Tube Co-Axial Structure |
| Glass | High borosilicate 3.3 Glass |
| External Pipe Diameter & Thickness | dia.=47±0.5mm &=1.6mm,dia.=58±0.5mm &=1.6mm dia.=70±05.mm &=2.0mm |
| Internal Pipe Diameter & Thickness | dia.=37±0.5mm &=1.6mm,dia.=47±0.5mm &=1.6mm dia.=58±05.mm &=1.6mm |
| Pipe length | 1500mm,1600mm,1700mm,1800mm,1900mm,2000mm,2100mm |
| Absorptive Coating Property | Three layers of Magnetron Sputtering Plating. Cu/SS-ALN(H)/SS-ALN(L)/ALN |
| Vacuum | p≤2.0*10-³Pa |
| Idle Sunning Property | Y=260-300m² °C/KW |
| Solor Irradiation for Obtaining a Present Water Temprature | H=3.7-4.2 MJ/m² (dia.=58mm); H=2.9-3.2MJ/m² (dia.=47mm) |
| Average Heat Loss Coefficient | Ult=0.4-0.6W/(m² ·°C) |
| Pressure-Endure Abilrty | 1.0Mpa |
| Hail-Endure Ability | 30mm |
| Life time | 15 years |
ALSO SERVE:parts or full set of solar water heater
