ISO 9001
SMACNA
Product Code: CEI-FDC / FDC-SIL / FDC-PVC / FDC-NEO
Flexible Duct Connector
وصلة مجرى مرنة
Silicon, PVC or canvas flexible connectors isolating vibration between AHU and ductwork. Three grades available: Silicon (-30°C to +250°C), Silicon (-30°C to +180°C), PVC (-30°C to +80°C).
Frame Material
Product Description
Castle Flexible Duct Connectors isolate equipment vibration and noise from the ductwork system. The fabric strip connects between AHU, fan or equipment flanges and the duct — absorbing vibration, thermal expansion and misalignment. Available in Silicon coated (-30°C to +250°C), PVC coated (-30°C to +80°C), and Neoprene materials. All dimensions available in rectangular and circular.
Technical Specifications
| Parameter | Value | Unit |
|---|---|---|
| Silicon Coated | Temperature range -30°C to +250°C | °C |
| PVC Coated | Temperature range -30°C to +80°C | °C |
| Neoprene | Temperature range -30°C to +120°C | °C |
| Fabric Width | 150mm (standard) / 200mm / 250mm | mm |
| Metal Flange | Galvanized steel — pre-drilled for bolt fixing | — |
| Shapes | Rectangular / Circular | — |
| All Sizes | Custom to match duct dimensions | — |
| Fire Rating | Class 0 per BS 476 (silicon version) | — |
| Connection | Bolted flange / Clamp band (circular) | — |
| Compliance | UL 181 / SMACNA / NFPA 90A | — |
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.

