Normal Solar water heater vacuum tube - 471500/1600/1800; 581600/1800/1...

normal solar vacuum tube, 1) high quality and reasonable price, 2) environmental friendly, 3) long life, 4) ISO9001:2000 CE - more info check here: http://www.sourcingappliances.com/Normal-Solar-water-heater-vacuum-tube-11236173/

Quick Brief

Type: Solar Water Heater Parts Place of Origin: Zhejiang China (Mainland) Brand Name: MAYCA Model Number: 47*1500/1600/1800; 58*1600/1800/1... Type: Non-Pressure&Pressure Pipe Material: Glass Application: Water Heater

Product Features:

normal solar vacuum tube

1) high quality and reasonable price

2) environmental friendly

3) long life

4) ISO9001:2000 CE

Business Terms:

Port: Shanghai

Minimum Order Quantity: 3000 Piece/Pieces

Supply Ability: 300000 Piece/Pieces per Month

Payment Terms: L/C,T/T

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Specifications and Product Details:

Solar water heater vacuum tube

Specifications:

Feature

Its membrane layer at bottom is typically made of aluminum.
Absorption layer and antireflective layer is compound of Nitrogen and aluminums ion.
This bears high thermal conductivity. And the membranous layer is about 0.3 micron.
Normal solar vacuum tube is very popular among solar tubes because it not only owns the mature production process, but also has the competitive prices.

Structure	All-Glass Double Tube Co-Axial Structure
Glass Material	High Borosilicate 3.3 Glass
External Pipe Diameter & Thickness	dia.=47±0.5mm &=1.6mm, dia.=58±0.5mm &=1.6mm, dia.=70±0.5mm &=2.0mm,
Internal Pipe Diameter & Thickness	dia.=37±0.5mm &=1.6mm, dia.=47±0.5mm &=1.6mm, dia.=58±0.5mm &=1.6mm,
Pipe Length	1500mm, 1600mm, 1700mm, 1800mm, 1900mm, 2000mm
Absorptive Coating Property	Structure	Cu/SS-ALN(H)/SS-ALN(L)/ALN
	Sediment Method	Three Layer Magnetron Sputtering Plating
	Specific Absorption	as=0.92~0.96(AM1.5)
	Emission Ratio	0.01~0.03(80°C±5°C)
Vacuum	P≤2.0×10-3Pa
Idle Sunning Property	Y= 260 ~ 300m²°C/KW
Solar Irradiation for Obtaining a Preset Water Temperature	H≤4.7 MJ/ m²(dia.58)	H=3.7~4.2 MJ/ m²
	H≤3.7 MJ/ m²(dia.47)	H=2.9~3.2 MJ/ m²
Average Heat Loss Coefficient	Ult=0.4~0.6W/( m².°C)
Pressure-Endure Ability	0.6Mpa
Hail-Endure Ability	30mm
Lifetime	15years