| Tube structure |
All-glass double deck co-axial structure |
| Glass material |
High borosilicate 3.3 glass |
| Outer tube diameter and glass thickness |
| Ø47±0.7mm; Glass thickness 1.6±0.15mm |
| Ø58±0.7mm; Glass thickness 1.6±0.15mm |
| Ø70±0.7mm; Glass thickness 2.0±0.15mm | |
| Inner tube diameter and glass thickness |
| Ø37±0.7mm; Glass thickness 1.6±0.15mm |
| Ø47±0.7mm; Glass thickness 1.6±0.15mm |
| Ø58±0.7mm; Glass thickness 1.6±0.15mm | |
| Tube length |
800mm,1200mm,1500mm,1600mm,
1800mm,1900mm,2000mm,2100mm etc |
Absorption
coating
property |
Coating material |
| Sediment method |
| Absorptivity |
| Emission ratio | |
| CU/SS-ALN(H)/SS-ALN(L)/ALN |
| Three Target magnetron sputtering plating |
| Absorptivity:α =0.92～0.96 (AM1.5) |
| Emission: ε=0.04～0.06(80℃±5℃) | |
| Vacuum degree |
P≤5.0X10-3(PA) |
| Stagnation temperature (temperature inside of empty evacuated tubes) |
260～300 ℃ |
| Average heat loss |
ULT 0.4～0.6 W/(m2 *℃) |
| Hail resistance |
Ø25 mm |
| Pressure-endure |
1MPa |
