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Haoguang three cavity vacuum heat collecting tube - Three cavity vacuum heat collecti...

1)material:borosilicate 3.3 glass, 2)Strong heat collection;, 3)low emission, 4)Long life, Min. order:1000 pieces - more info check here: http://www.sourcingappliances.com/Haoguang-three-cavity-vacuum-heat-collecting-tube-11272125/

Quick Brief

Type: Solar Water Heater Parts Place of Origin: Zhejiang China (Mainland) Brand Name: Haoguang Model Number: Three cavity vacuum heat collecti... Coating layer: 12

Product Features:

1)material:borosilicate 3.3 glass

2)Strong heat collection;

3)low emission

4)Long life

Min. order:1000 pieces

Business Terms:

Port: Shanghai/Ningbo

Minimum Order Quantity: 1000 Piece/Pieces

Supply Ability: 300000 Piece/Pieces per Year

Payment Terms: L/C,T/T

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Haoguang three cavity vacuum heat collecting tube
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Product Packagings & Delivery Terms:

Packaging Detail: Carton box

Delivery Detail: Within 15 days after receipt of deposite

Specifications and Product Details:

The three cavity vacuum heat collecting property and specification is as follows

Structure

All-glass concentric dual tube geomer

Glass material

Borosilicate glass

Outer tube diameter and thickness

Φ=47±0.7mm & =1.5mm
Φ=58±0.7mm & =2mm
Φ=70±0.7mm & =2mm

Inter tube diameter and thickness

Φ=37±0.7mm & =1.5mm
Φ=47±0.7mm & =1.6mm
Φ=58±0.7mm & =1.6mm

Tube Length

1200(±5mm)1500(±5mm)
1700-1800(±5mm)
2000(±5mm)

Absorbing
coating
properties

Configulation1200(±5mm) 1500(±5mm)
1700-1800(±5mm)
2000( ±5mm)
Method to depositionGraded A1-N/A1 solar selectuve absorbing coating
absorptanceas 0.88-0.93
EmittanceΣn:-.08-0.04

Vacuum

p ≤ 2 × 10-3

Stagnation parameter

250M2C/KW

Solar radiance exposure for obtaining a preset water temperature

2.8MJ/M2

Average heat loss coefficient

0.8W(M2C)

Lifetime

15years
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