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Common Solar Energy Glass Evacuated Tubes - 58-1800mm, 47-1500mm

Common Solar Energy Glass Evacuated Tubes have high-performance absorption ratio, low reflectance ratio and strong heating. - more info check here: http://www.sourcingappliances.com/Common-Solar-Energy-Glass-Evacuated-Tubes-10042887/

Quick Brief

Type: Solar Water Heater Parts Place of Origin: Zhejiang China (Mainland) Brand Name: MSHC & OEM Model Number: 58-1800mm, 47-1500mm

Product Features:

Common Solar Energy Glass Evacuated Tubes have high-performance absorption ratio, low reflectance ratio and strong heating.

Business Terms:

Price Terms:FOB,CIF,EXW

Payment Terms: T/T,Western Union,MoneyGram,L/C

Minimum Order: Negotiatable

Delivery Port: Customized

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Common Solar Energy Glass Evacuated Tubes
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Product Packagings & Delivery Terms:

Specifications and Product Details:

Common Solar Energy Glass Evacuated Tubes use a vacuum tube solar collector to eliminate the heat loss of the gas convection and conduction, and the application of selective absorbing coating makes the radiation heat loss down to the minimum. It structures pressure well and can work in high temperature.

The specification of Common Solar Energy Glass Evacuated Tubes:

Structure: All-glass double-tube co-axial structure

Glass Material: High borosilicate 3.3 glass

External pipe diameter: D=47±0.7mm

D=58±0.7mm

Internal pipe diameter: D=37±0.7mm

D=47±0.7mm

Thickness of vacuum tube: 1.6mm / 1.8mm

Heat loss coefficient: ≤0.90 / ≤0.85 / ≤0.80

Sun exposure temperature: ≥200

Coefficient of thermal expansion of glass: 3.3×10-6

Cover glass tube transmittancy: 0.91

Solar selective surface coating sputtering gradient: Al-N / Al

Solar absorption ratio(AM1.5): 0.93

Emission ratio: 0.06

Anti-hail capability: No damage from D25mm hail impact

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