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Haining Shihui Heat Collection Tubes Co., Ltd.
China Manufacturer with main products: solar water heater, solar collector, solar system, solar energy |
Vaccum Tube
| FOB Price: | 5.00 - 25.00 USD/Piece |
|---|---|
| Supply Ability: | 50,000 Set/Sets per Month |
| Shipping: | within 30days |
| Payment Terms: | T/T(Bank Transfer) |
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| Place of Origin: | Zhejiang in China |
|---|---|
| Packaging Details: | kraft paper box |
Specifications
Adopt the technique of magnetic-control sputtering selective absorptive coatings, improve the heat collecting efficiency by reducing the content of water.
| Length | 1500mm | 1800mm | ||||
| Outer tube diameter | 47mm | 58mm | ||||
| Internal tube diameter | 37mm | 47mm | ||||
| Weight | 1.3kg | 2.2kg | ||||
| Glass thickness | 1.6mm | 1.6mm | ||||
| Material | Borosilicate glass 3.3 | Borosilicate glass 3.3 | ||||
| Absorptive coating | Graded A1/N/A1 | Grage A1/N/A1 | ||||
| Vacuum degree | P≤5.0×10-3 Pa | P≤5.0×10-3Pa | ||||
| Thermal expansion | 3.3*10-6/oC | 3.3*10-6/oC | ||||
| Insolation Temperature | >200oC | >200oC | ||||
| Absorptance | >93% | >93% | ||||
| Emittance | <8% | <8% | ||||
| Heat loss | <0.8W/(m2oC) | <0.8W/(m2oC) | ||||
| Maximum strength | 0.8Mpa | 0.8Mpa | ||||
| Resist cold | -35oC | -35oC | ||||
| Resist hailstone | φ25mm | φ25mm | ||||
| Resist wind | 30m/s | 30m/s | ||||
| Start-up temperature | ≤25oC | ≤25oC | ||||
Service Guarantee
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Free Service Charge
ECVV doesn't charge any service fee to Buyers for buying this product.
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ECVV Supply
ECVV is responsible for supply, and provides product quality inspection, fund supervision and supply chain services.
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Product Quality Commitment
ECVV China Sourcing Agent will assess the reputation and supply ability of the factory and conduct field trips to select the high-quality Chinese factories for buyers.
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Deposit Service Commitments
In order to improve the quality of service, ECVV will charge for a 100CNY deposit for the agent purchasing order, and the deposit will be part of subsequent purchasing costs.
After paying a deposit, if the purchasing order is not completed because of unsatisfied ECVV services, ECVV will refund your deposit.
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