All Glass Three Target Vacuum Tube

• Customization: Available
• After-sales Service: Overseas Call Centers
• Warranty: 1
• Model NO.: ILVT Series
• Condition: New
• Type: Common Vacuum Tube
• Certification: ISO, CE
• Application: Water Heater, Solar Thermal
• Pipe Material: Glass
• Pressurized: Non-Pressure
• Absorbing Coating: Cu/Ss-Aln(H)/Ss-Aln(L)/Aln
• Glass Material: High Borosilicate 3.3 Glass
• Sediment Method: 3 Target Magnetron Sputtering Plating
• Pipe Length: 1800mm
• Pipe Outer Diameter: Φ=58±0.7mm
• Pipe Thickness: &=1.6mm
• Pipe Inner Diameter: Φ=47±0.7mm
• Transport Package: Export Carton Packing
• Specification: 58X1800mm
• Trademark: INLIGHT
• Origin: China(Mainland)
• HS Code: 8419901000
• Production Capacity: 10000 Piece/Pieces/Month
• Package Size: 187.00cm * 32.00cm * 16.00cm
• Package Gross Weight: 21.200kg

Product Description

Features

Three-target glass vacuum tube, high efficiency and good performance, especially for solar energy collecting to heat hot water .

Specification

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  &=1.6mm,    Φ=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 &=1.6mm
Pipe length		1500mm,1800mm,  1900mm,  2000mm,  2100mm
Absorbing coating property	Structure	AL/AL-ALN(H)/AL-ALN(L)/ALN
	Sediment method	Single target magnetron sputtering plating
	Specific  absorption	as=0.90~0.93(AM1.5)
	Emission ratio	εh=0.05~0.075(80±5)
Vacuum tightness		P≤5.0X10 -3 Pa
Idle sunning property parameters		Y=220~260m2./KW
Solar irradiation   for obtaining a   preset water   temperature	H≤3.7MJ/m2(Φ47)	H=4.1~4.4MJ/m2
	H≤4.7MJ/m2(Φ58)	H=3.1~3.4MJ/m2
Average heat loss coefficient		ULT=0.6~0.7W/(m2.)

Working Principle

All-glass solar vacuum tube, connecting with water tank or manifold, when it works, cold water flows down into the vacuum tube, and there it is heated with solar energy absorbed by the coating outside of inner vacuum tube, the solar will be absorbed efficiently by the coating with little loss of heat because of the vacuum between the inner and outer glass tubes, and when cold water becomes hot, hot water will rise up to water tank or manifold because of the larger proportion to cold water, cold water again flows into solar vacuum tube for another heating process.