2012 super three-target all glass vacuum tube

all glass vacuum tube high quality and reasonable price easy install and long life time

all glass vacuum tubehigh quality and reasonable priceeasy install and long life time

Structure					All-glass double-tube co-axial structure
Glass material					High borosilicate 3.3 glass
External pipe diameter and thickness					Φ=47±0.7mm &=1.6mm  Φ=58±0.7mm &=1.6mmΦ=70±0.7mm &=2.0mm
Internal pipe diameter and thickness					Φ=37±0.7mm &=1.6mm  Φ=47±0.7mm &=1.6mm Φ=58±0.7mm &=2.0mm
Pipe length					800mm 1200mm 1500mm 1600mm                      1800mm 1900mm 2000mm 2100mm
Absorbing  coating property		structure			Cu/SS-ALN(H)/SS-ALN(L)/ALN
		sediment method			Single target magnertron sputtering plating
		Absorption ratio			a=0.90~0.93(AM1.5)
		Emmision ratio			ε=0.05~0.075(80±5)
Vacuum tightness					P≤5.0X10-3Pa
Average heat loss coefficient					ULT=0.6~0.7W/(m2.)
Hail resistance					Φ=25mm

2012 super three-target all glass vacuum tube