Specifications

1.no water inside tube, high effective,
2.certificate CE ISO90012008
3.OEM available long life for 15years
4.china patent

 

Specification
Structure	All glass double concentric tubes
Material	Borosilicate glass 3.3
Outer tube diameter	Φ47±0.7.mm  &=1.6mm
Inner tube diameter	Φ58±0.7.mm  &=1.6mm
Length	47mm-1500mm/1600mm/1800,
	58mm-1500mm/1600mm/1800mm/2000mm/2100mm
Coating	SS-C/Cu
Absorption rate after evacuating(AM1.5)	α= 0.88–0.90
Emission rate after evacuating(AM1.5)	ε= 0.04–0.06(80°C±5°C)
Vacuum degree	P≤5.0×10­¯³Pa
Average heat loss conficient	ULT = 0.4-0.6w(m².°c)
Max stagnation temperature	260°C-300°C
(temperature inside of empty vacuum tube)
Pressure	0.6MPa
Impact Resistance	Φ≤25mm