vacuum tube

vacuum tube made of high borosilicate 3.3 glass and has an all glass double-tube co-axial structure.

vacuum tube

The evacuated tubes are made in high quality boronsilicon glass  It can endure 0,6Mpa pressure and the hail which is smaller than 25mm The absorption is boosted by a Nitrogen and Aluminum solution sputtered in the space between the two pipes. The rate of absorbingis more than 0,92.The tubes exist  different diameters: Φ47, Φ58,Φ70 -800mm, 1200mm, 1500mm, 1600mm,1800mm, 1900mm, 2000mm, 2100mm.The rate of vacuum between the pipes is below 5*10-3Pa which is the best rate currently available for evacuated tubes. The average pressure in the market is 5*10-2P

Iterms	Size	Capacity(L)	Absorb area(m2)	20GP/40GP loading qty(pc)
vacuum tube	47*1200	1.29	0.07	4200 / 8960
	47*1450	1.56	0.08	3360 / 7280
	47*1500	1.61	0.09	3360 / 7140
	47*1600	1.72	0.09	3220 / 6860
	47*1800	1.93	0.10	2940 / 6020
	58*1200	2.17	0.90	3000 / 6480
	58*1500	2.71	0.11	2400 / 5280
	58*1600	2.89	0.12	2280 / 5040
	58*1650	2.98	0.12	2280 / 4800
	58*1700	3.07	0.13	2280 / 4680
	58*1750	3.17	0.13	2160 / 4560
	58*1800	3.26	0.14	2160 / 4440
	58*1900	3.44	0.14	1920 / 4200
	58*2000	3.62	0.15	1920 / 4080
	58*2100	3.80	0.16	1920 / 3960
	70*1800	5.09	0.17	1500 / 3000
	70*2000	5.65	0.19	1300 / 2800
	70*2100	5.93	0.20	1300 / 2800

Glass material: High borosilicate 3.3 glass

Abosorbing coating property

Structure:  CU/SS-ALN(H)/SS-ALN(L)/ALN

Sedment method:  3 high magnertron sputtering plation

Specific absorption:  as=0.93-0.96(AM1.5)

Emission ratio: ξh=0.04-0.06(80`±5)

Vacuum tightness:  P≤5.0*10-3Pa

Package: carton

Our company ,Haining Aoxin Solar Collector Tube Co.,Ltd , is a manufacturer of  solar collectors and solar water heaters in China .We have ISO certification and some other related certifications.We always give our customers best price and good quality! We sincerely hope you will be my next business friends.