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Build Your Online Product Catalogs?
| Product Name: |
vacuum tube
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| Supply Ability: |
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| Related proudcts |
evacuated tube, solar vacuum tube, |
| Specifications |
47/1500 58/1800 |
| Price Term: |
FOB |
| Port of loading: |
s |
| Minimum Order |
500pcs |
| Unit Price: |
usd1.5-2.4 |
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1.15 years warranty!
2.fast thermal collecting efficiency
3. it works well under cold weather
Three kinds:
single-target(common vacuum tube)
three-target (colour: blue and black-golden)
Solar evacuated tube technology:
Material of tube:3.3 High Borosilicate
Dimension: ¦µ47/¦µ58
Outer Diameter of Tube:¦µ47¡À0.7/¦µ58¡À0.7
Inner Diameter of Tube:¦µ37¡À0.7/¦µ47¡À0.7
Thickness of Glass: 1.6¡À0.15
Transmittance: ¡Ý0.89
Selective Coating:SS-CU-AL-N/AL
Absorptivity:¡Ý0.86(AM1.5)
Emissivity: ¡Ü0.080(80¡À5)
Glass Expansion Ratio:3.3¡À0.1¡Á10-6K-1
Vacuum Degree: ¡Ü5.0¡Á10-3Pa
Hailstone Resistance: dia.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.
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| Company: |
Changzhou boshi new energy science&technology co.,ltd.
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| Contact: |
Ms. Joy Wang |
| Address: |
no 2,hengluo road,henglin town,changzhou city |
| Postcode: |
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| Tel: |
86 519 69996866 |
| Fax: |
86 519 88233037 |
| E-mail: |
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