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high quality three layers all-glass low pressure solar vacuum tubes
| Model No. : | high quality three layers all-glass solar vacuum t |
|---|
Product description
Basic Specification
| color | blue |
|---|
Detail Description
high quality three layers all-glass low pressure solar vacuum tubes
solar vacuum tubes
CCC, CE, ISO9001 Certificate
Specification
Structure: Two concentric borosilicate glass tubes
Material: Borosilicate glass 3.3
Outer tube diamete: Φ47/Φ58
Inner tube diameter: Φ37/Φ47
Length: 47-1500mm/1600mm/1800mm;
58-1500mm/1600mm/1800mm/2000mm/2100mm
Coating: triple-target
Weight: Φ47: 1.3kg/1.5kg/1.7kg
Φ58: 2.2kg/2.5kg/2.8kg
Glass thickness: 1.6mm/1.8mm/2.0mm
Vacuum degree: P<5*10-3Pa
Thermal expansion: 3.3*10-6/°C
Insolation temperature: >200°C
Absorptance: >93%
Emittance: <5%
Heat loss: <0.8W(m2°C)
Maximum strength: 0.8Mpa
Resist cold: -35°C
Resist hail: 25mm/30mm/35mm
Resist wind: 30m/s
Start-up temperature: <=25°C
Lifetime: 15 years
Additional Information
| Payment Terms | L/C, T/T, Western Union |
|---|---|
| Minimum Order | 1000 |
| Lead Time / Delivery Time | 15 Day(s) |
| Sample Available | NO |
| Delivery Details | FOB,CIF,CNF |
| FOB Port | Shanghai |
| Loading Info | by sea,by air or any way as customers said |
| Packing Info | standard export package,paper cartons,inside the foam protect |
| Target Market(s) | North America, Oceania, Southeast Asia, Eastern Europe, Africa(except Middle East), Latin America, Japan & Korea, Western & Southern Europe, Northern Europe, Central & Southern Asia, Middle East |
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