-Models: Ф58 X 92
-Weight: 2.45kg
-Structure: all glass coaxial double-layer tubes
-Outer tube diameter: Ф58mm
-Inner tube diameter: Ф47mm
-Outer Tube thickness: 1.8mm
-Inner tube thickness: 1.6mm
-Tubes length: 1932mm
-Material of coating: AlN/AIN-SS/CU
-Absorptance: 0.94~0.96
-Emittance: 0.04~0.06
-Vacuum: P≤5 X 0-3pa
-Transmittance of Outer Tube: 0.91
-Stagnation temperature (height):270~300℃
-Heat-loss coefficient: ≤0.6 w/ (m2*℃)
-Bearing hailstone ability: hailstone diameterФ25mm
-Pressure-endure ability: 1MPa