ISO 9001
SMACNA
Product Code: CEI-CFSD / CFSD-M
Combined Fire & Smoke Dampers
صمامات حريق ودخان مدمجة
Dual-function dampers providing both fire and smoke containment in a single assembly. Fusible link fire closure combined with electric smoke actuator. Reduces installation complexity and cost.
Frame Material
Product Description
Castle Combined Fire & Smoke Dampers perform dual function — both fire damper (UL 555) and smoke damper (UL 555S) in a single unit. Spring-return motorized actuator with 72°C thermal fusible link as backup. Provides fire compartmentation AND smoke control at duct penetrations through fire-rated barriers — eliminating the need for separate fire and smoke dampers.
Technical Specifications
| Parameter | Value | Unit |
|---|---|---|
| Frame Material | Galvanized steel 1.5mm minimum | — |
| Blade Material | Galvanized steel — multi-blade opposed | — |
| Actuator | Spring-return fail-safe + thermal fusible link 72°C | — |
| Fire Rating | 1.5 hour / 3.0 hour (UL 555) | hours |
| Smoke Rating | ES 60/120 min (UL 555S / BS EN 1366-10) | min |
| Leakage Class | Class I or Class II per UL 555S | — |
| Control Signal | 24V/230V — On/Off / BACnet / Modbus | — |
| Max Velocity | 2000 fpm (10 m/s) dynamic rated | m/s |
| Rectangular Sizes | 150×150 to 1500×1500mm | mm |
| Blade Seal | SS jamb seals + silicone blade edge seals | — |
| Installation | Vertical or horizontal — wall or floor | — |
| Compliance | UL 555 + UL 555S / BS EN 1366-2 + 1366-10 / 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.

