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high heat absorbing Three-cavity solar vacuun tube

Supplier Info

Haining Chenre Energy-Efficiency Co., Ltd.

[China Supplier]

Contact Person : Ms. Zhang Ada

Tel : 86-573-87862870

Fax : 86-573-87862873

Product Detail

1.Standard 3.3 high-boron-silicon glass-pipe 2.Low coefficient of heat loss 3.Good performance & price 4.15years warranty

Structure		All-glass double-tube co-axial structure
Glass material		High borosilicate 3.3 glass
External pip diameter and thickness		Φ=47±1.0mm§=1.6mm±0.2mm Φ=58±1.0mm§=1.8mm±0.2mm Φ=70±1.5mm§=2.2mm±0.3mm
Internal pip diameter and thickness		Φ=37±0.8mm§=1.4mm±0.2mm Φ=47±1.0mm§=1.6mm±0.2mm Φ=58±1.0mm§=1.8mm±0.2mm
Pipe length		950mm 1500mm 1600mm 1700mm 1800mm 1900mm 2000mm 2100mm
Absorptive coating property	Structure	Cu/SS-ALN(H)/SS-ALN(L)/ALN
	Sediment method	3 target magnetron sputtering plating
	Specific absorption	As =0.93~0.96 (AM1.5)
	Emission ratio	εh =0.04~0.06 (80±5)
Vacuum tightness		P≤5.0×10-3Pa
Idle sunning property parameters		Y=260~300 m2.C/KW
Solar irradiation for obtaining a preset water temperature	H≤4.7MJ/m2(Φ58)	H=3.7~4.2 MJ/m2
	H≤3.7MJ/m2(Φ47)	H=2.9~3.2 MJ/m2
Average heat loss coefficient		ULT=0.4~0.6W/(m2.)

Features:

Anti-high temperature and Anti-freeze vacuum tube. The vacuum tube can withstand 400 high temperature and 30 Celsius degree below zero.High efficiency and Good performance. The vacuum tube can heat up rapidly, and even work very well on cloudy days.Constant warm keeping. The air between inner tube and outer tube is evacuated, which enable the tube to preserve heat.Long life-span. The warranty of tube is 15 years.

high heat absorbing Three-cavity solar vacuun tube