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Three-channel all-glass vacuum heat collecting tube - 47-1500mm

Material: Glass, Model: 58-1800mm,, Model: 47-1500mm,, Max Temp. 250 degree - more info check here: http://www.sourcingappliances.com/Three-channel-all-glass-vacuum-heat-collecting-tube-10048808/

Quick Brief

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

Product Features:

Material: Glass

Model: 58-1800mm,

Model: 47-1500mm,

Max Temp. 250 degree

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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Three-channel all-glass vacuum heat collecting tube
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Product Packagings & Delivery Terms:

Packaging Detail: Packed with paper carton outside, foam is put between paper carton and tubes or as your request.

Delivery Detail: 10-15 days after confirming

Specifications and Product Details:

Putting an all-enclosed glass tube into a regular all-glass vacuum heat collecting tube to reduce water capacity without reducing lighting area, thus to enhance the warming effect by 30%.

Material: Glass
Model: 58-1800mm, Weight: over 2.0kgs/pc
Model: 47-1500mm, Weight: over 1.5kgs/pc
Max Temp. 200 degree

Glass Material: High borosilicate 3.3 glass

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

Pipe length:800mm 1200mm 1500mm 1600mm 1800mm 1900mm 2000mm 2100mm

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

Cover glass tube transmittancy: 0.91

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

Solar absorption ratio(AM1.5): 0.93

Emission ratio(80°C): 0.06

Sun exposure temperature: ≥200°C

Anti-hail capability:No damage from D25mm hail impact

Coefficient of thermal expansion of glass: 3.3×10-6/°C

Heat loss coefficient: ≤0.90W( m2.°C) / ≤0.85W( m2.°C) / ≤0.80W( m2.°C)

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