Haining Sanneng Solar Water Heater Co., Ltd.: Jiaxing, Zhejiang, China; Main products: Solar water heater systemSolar water heater, Solar collector, Solar air conditioner, Air conditioner assemblyNo more than 0.1 MPa, 100 degree centigrade

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Solar Accessories, Evacuated solar vacuum tubes, solar collector tubes,(manufacturer)

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US$ 1.1 - 2 / Piece

500 Pieces(Min. Order)

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Product Details

Place of Origin	Zhejiang, China	Brand Name	Sanneng
Model Number	SN-V5818	Type	Other, Part of solar water heater
Application	Water Heater	Pipe Material	Glass

three layer evacuated tube
1.Strict quality inspection
2.Long life span
3.healthy and harmless
4.Good service

Solar water heater vacuum tube :

size:

* 47mmx1500mm

* 47mmx1800mm

* 58mmx1800mm

* 70mmx1800mm

* 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

Starts up fast and collects solar energy fully.

Unique super pure copper surface, allowing lower reflection and minimal heat loss.

High level vacuum ensure operation under cold weather.

Long time warranty to 15 years.

Looking forward to having business with you in the near future!

Vacuum tube showing:

Haining Sanneng Solar Water Heater Co., Ltd.: Contact namejunjie Wang
Chat Now; Phone0086-573-87881860; AddressLong industrial park, Jiaxing, Zhejiang

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