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- Contact Person : Ms. Duan Connie
- Company Name : Haining Xianke Solar Energy Technology Co., Ltd.
- Tel : 86-573-87817298
- Fax : 86-573-87872882
- Address : Zhejiang,Haining,Yuanhua Industrial Zone
- Country/Region : China
- Zip : 314416
2.0mm vacuum tube
Product Detailed
Related Categories:Solar Water Heater Parts
tri-element vacuum tube
1.working pressure :0.6Mpa
2.Hail resistance:25mm
3.High vacuum capacity
4.thickness :2.0mm
| Material | High Borosilicate glass 3.3just like PYREX | |||||||
| Length | 1500/1800/2000/21000 (mm) ±5mm | |||||||
| Outer diameter | 47~58(mm)±5mm | |||||||
| Inner diameter | 37~47(mm) ±5mm | |||||||
| Absorbering coating performance | Film structure | AL/AL-ALN(H)/AL-ALN(L)/ALN | Cu/SS-ALN(H)/SS-ALN(L)/ALN | |||||
| Solar absorber efficiency | 0.90~0.93(AM=1.5) | 0.93~0.96(AM=1.5) | ||||||
| Emittance | 0.05~0.075(80±5) | 0.04~0.06(80±5) | ||||||
| Sediment method | single target magnertron sputtering plating | three target magnertron sputtering plating | ||||||
| Average heat loss efficiency | ULT=0.6~0.7w/(m2.) | ULT=0.4~0.6w/(m2.) | ||||||
| Solar radiance exposure | <2.8MJ/M2 | |||||||
| Vacuum capacity | <5×10-3Pa | |||||||
| Idle sunning property parametres | Y=220~260m2./KW | Y=260~300m2./KW | ||||||
| Solar irradiation for obtaining a preset water tempreature | H≤4.7MJ/M2(D58) | H=4.1~4.4MJ/M2 | H=3.7~4.2MJ/M2 | |||||
| H≤3.7MJ/M2(D47) | H=3.1~3.4MJ/M2 | H=2.9~3.2MJ/M2 | ||||||
| get the calories | 9.3MJ/M2 | |||||||
| Stagnation | >230M2./KW | |||||||
| Thermal shock endurance | No problem after three times hot and cold water touch (>90 or <25) | |||||||
| Hail Resistance | 25mm | |||||||
| Life time | over 15years | |||||||
2.0mm vacuum tube
