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【 Introduce 】
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
AL/AL-ALN(H)/AL-ALN(L)/ALN
Single Target magnetron sputtering plating
Absorptivity:α =0.90~0.93 (AM1.5)
Emission: ε=0.05~0.075(80℃±5℃)
  Vacuum degree P≤5.0X10-3 (PA)
Stagnation temperature (temperature inside of empty evacuated tubes) 220~260 ℃
 Average heat loss ULT 0.6~0.7 W/(m2 *℃)
Hail resistance Ø25 mm
Pressure-endure 1MPa