1.Structure: all glass concentric dual tube geometer 2.Glass material: borosilicate glass 3.Lifetime: >15 years

      

 Vacuum Tube Technical Parameter

   1)     Structure: all glass concentric dual tube geometer

   2)     Glass material: borosilicate glass

   3)     Coating: Grated SS-C/CU 

   4)     Absorptance: >0.92

   5)     Emittance: <0.08(80°C)

   6)     Vacuum: <5×10-3 Pa

   7)     Stagnation: >230m2. °C/KW

   8)     Average heat loss: <0.6w/m2. °C

   9)     Lifetime: >15 years

  

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