copper heat pipe vacuum tube (58*1800 vacuum tube)

Price: US $ 6 - 7 / Piece
Brand Name: sanneng
Model Number: S-N-VT01
Country/Region:
Post Date: Jul 11,2012

Product Description: copper heat pipe vacuum tube (58*1800 vacuum tube)


Solar water heater vacuum tube :

       

                    size:

                           *      47mmx1500mm

                           *      47mmx1800mm

                           *      58mmx1800mm

                           *      70mmx2000mm

       composition:     borax and silica glass

 

    

Three-high vacuum tube technology:

 

Dimension

Φ47 

Φ58

Material of Tube

3.3 High Boron Silicon

3.3 High Boron Silicon

Glass Expansion Ratio

3.3±0.1×10-6K-1

3.3±0.1×10-6K-1

Outer Diameter of Tube

Φ47±0.7

Φ58±0.7

Inner Diameter of Tube

Φ37±0.7

Φ48±0.7

Thickness of Glass

1.6±0.15

1.6±0.15

Transmittance

≥0.89

≥0.89

Selective Coating

SS-CU-AL-N/AL

SS-CU-AL-N/AL

Absorptivity

≥0.86(AM1.5)

≥0.86(AM1.5)

Emissivity

≤0.080(80±5)

≤0.080(80±5)

Vacuum Degree

≤5.0×10-3Pa

≤5.0×10-3Pa

Collecting Performance Parameter under Sunshine

≥190m2/kw

≥190m2/kw

Hailstone Resistance

25mm

25mm

Supplier Details:

Haining Sanneng Solar Water Heater Co., Ltd.

Sales:Mr. Bill lee

Contact Phone:86-573-87869935

Main Products:Other Solar Energy Related Products

Business type:Manufacturer

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