Solar Evacuated Tubes
$3
/piece
price excl.VAT
Negotiable
- Minimal order
- 100 pieces
Message Phone call
Product Specifications
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Product Description
Vaucuum tubes for solar water heater, it's with excellent efficient.
We regard customer satisfaction and market cultivation as its central job of service and provides first class product and personalized service. Senior technical engineers and production backbones go deeply into the marker for investigation. And tap the potential demands of customers at the first time. We provide customers with perfect solutions.
| Strucure | All-glass concentric dual tube geomer | |
| Glass material | Borosilicate glass | |
| Outer tube diameter and thickness | Φ =47±0.7mm & =1.5mm Φ =58±0.7mm & =2mm Φ =70±0.7mm & =2mm | |
| Inter tube diameter and thickness | Φ =37±0.7mm & =1.5mm Φ =47±0.7mm & =1.6mm Φ =58±0.7mm & =1.6mm | |
| Tube Length | 1200(±5mm)1500(±5mm) 1700-1800(±5mm) 2000(±5mm) | |
| Absorbing coating properties | Configulation | 1200(±5mm) 1500(±5mm) 1700-1800(±5mm) 2000( ±5mm) |
| Mothod to deposition | AL-N/A1 selective absorptive coating | |
| absorptance | as 0.88-0.93 | |
| Emittance | Σn:-.08-0.04 | |
| Vacuum | p ≤ 2 × 10-3 PA | |
| Stagnation parameter | above 250M2C/KW | |
| Sloar rediance exposure for obtaining a preset water temperature | 2.8MJ/M 2 | |
| Average heat loss coefficient | 0.8W(M2C) | |
| Lifetime | 15years | |
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