1600(1)mm Solar Vacuum Tube

ompetitive price and good quality
.Certification:CE,ISO9001
.5-15 years warranty...
Solar Vacuum Tubes:
Process characteristics:
1. use of advanced production technology, professional production of various types of rough tube, vacuum glass tube
2. selective absorbing coating
Selection of advantages:
1. Glass selection of composite ISO3585: 1991 requirements borosilicate 3.3 glass, the glass has: strong acid, solar projection ratio, impact resistance and other advantages.
2. collector process by magnetron sputtering
3. deposition gradient selective absorbing coating (A1-N/A1), the coating on the Sun has a very high absorption rate and low emissivity, solar absorption ratio ≥ 0.92 (AM1.5), hemisphere than launch? h < 0.086 (80 °C ± 5 °C), air drying temperature of ts > 220 m
2
°C, gas pressure within the vacuum laminated P < 5 × 10-3pa, nausea amount of sun radiation exposure H ≤ 3.8MJ / m, the average heat loss coefficient ult < 0.09w / (m °C).
material
borosilicate glass 3.3
length
1600mm
inner tube diameter
47mm
outer tube diameter
58mm
membrane
gradient AL-N-C/AL selective absorbing coating
solar absorptance
> 0.09 (AM = 1.5)(international requirements as:>0.86)
hemisphere emission ratio
> 0.086 (80 °C) (international provisions: ≤ 0.09)
air drying performance parameters
≥186square meters.°C/kw(international requirements as:≥175)
The amount of sun radiation exposure stuffy
≤ 2.86MJ / m
2
(international provisions: ≤ 3.8)
Average heat loss coefficient
≤ 0.75W / m (International provisions: ≤ 0.90)
inside and outside the tube laminated tube
≤ 5 × 10-3pa (international provisions: ≤ 5 × 10-2pa)
heat shock
Below 25°C 90°C repeated alternating hot and cold water more than three times without damaging the impact of
pressure
withstand the pressure of 0.6Mpa
anti-hail
size of not more than 25mm can withstand without damage hail attack