ISO 9001
SMACNA
Product Code: CEI-ID / ID-GI / ID-AL
Inertia Dampers
صمامات عزل الاهتزاز
Pressure relief, counter-balance and back-draft configurations for different system requirements. Gravity-operated with no power requirement. Available as CID-PR, CID-CB and CID-BD models.
Frame Material
Product Description
Castle Inertia Dampers (Counterbalancing Dampers) automatically balance airflow in different sections of the ductwork using counterweights or springs. They modulate blade position based on air pressure, maintaining consistent airflow distribution without manual adjustment. Essential for systems with variable fan speeds or multiple branch takeoffs.
Technical Specifications
| Parameter | Value | Unit |
|---|---|---|
| Frame Material | Galvanized steel 1.2mm / Aluminium option | — |
| Blade Material | Aluminium sheet — single skin or GI option | — |
| Counterbalance | Adjustable counterweights on external arm | — |
| Operation | Gravity-operated — opens with airflow, closes when fan stops | — |
| Blade Type | Single blade / Multi-blade parallel | — |
| Frame Depth | 100mm / 125mm | mm |
| Standard Sizes | 150×150 to 1200×1200mm | mm |
| Mounting | Wall mounted / Duct mounted — flush or exposed | — |
| Material Options | Galvanized Steel (GI) / Stainless Steel (SS) / Aluminium (AL) | — |
| Finish | Mill finish / Powder coated per RAL code | — |
| Compliance | SMACNA / ASHRAE | — |
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.

