Solar Energy Vacuum Tube (BNVT-180)

Models: Ф58 X 180
Weight: 2.29kg
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: 1812mm
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

Place of Origin:	China|
Model No:	BNVT-180
Brand Name:	BNI