ISO 9001
SMACNA
Product Code: CEI-FD / FD-AL / FD-PVC
Flexible Duct
مجرى هواء مرن
Flexible ductwork for complex routing where rigid duct installation is impractical. Aluminium foil construction with polyester insulation. Ideal for last-metre connections and retrofit applications.
Frame Material
Product Description
Castle Flexible Ducts are general-purpose uninsulated flexible ductwork for air distribution, exhaust and ventilation applications. Constructed from multi-ply aluminium laminate with embedded spiral wire for shape retention. Lightweight, compressible for shipping, and extends to full length on site. Available in aluminium and PVC versions.
Technical Specifications
| Parameter | Value | Unit |
|---|---|---|
| Construction | Multi-ply aluminium laminate with spiral wire | — |
| Diameter Range | Ø50 to Ø500mm | mm |
| Standard Length | 10m (compressed to ~1.5m for shipping) | m |
| Temperature Range (AL) | -30°C to +140°C | °C |
| Temperature Range (PVC) | -10°C to +60°C | °C |
| Max Velocity | 10 m/s | m/s |
| Max Pressure | 2000 Pa | Pa |
| Fire Rating | Class 1 per UL 181 | — |
| Compression Ratio | 7:1 (compressed for transport) | — |
| Compliance | UL 181 / SMACNA | — |
Fields of Application
Tests & Certificates
ISO Certification
International Quality Certifications
International Standards
SMACNA · DW144 · IGC · UL
Duct Test
Rigorous leakage and pressure testing to SMACNA and DW144 standards.
Air Tests
Air velocity and distribution testing.
