ISO 9001
SMACNA
Product Code: CEI-VCD / VCD-OB / VCD-PB
Volume Control Dampers
صمامات تحكم في التدفق
Manual or motorized volume control dampers regulating airflow in duct systems. GI, AL or SS frames. Opposed-blade or parallel-blade configurations for different pressure requirements.
Frame Material
Product Description
Castle Volume Control Dampers regulate and balance airflow within HVAC duct systems. Available in opposed blade (OB) and parallel blade (PB) configurations. The frame is constructed from galvanized steel with extruded aluminium aerofoil double-skinned blades for low-leakage performance. Hand locking quadrant with clear open/close indication and three intermediate positions (1/4, 1/2, 3/4). Motorized actuator option for BMS integration.
Technical Specifications
| Parameter | Value | Unit |
|---|---|---|
| Frame Material | Galvanized steel sheet 1.2mm (Z-275) | — |
| Frame Depth | 125mm (standard) / 200mm (slip & clip) | mm |
| Flange Height | 25mm standard — undrilled | mm |
| Blade Material | Double-skinned extruded aluminium aerofoil profiles | — |
| Blade Operation | Opposed blade (standard) / Parallel blade (option) | — |
| Drive Shaft | Electro-plated square rod 12.7×12.7mm | mm |
| Bushings | Self-lubricating nylon bushings | — |
| Blade Linkage | Toothed nylon gears — opposed blade operation | — |
| Handle | GI locking hand quadrant — open/close + 3 intermediate positions | — |
| Blade Seal | Foam gasket across blade edges — minimizes leakage | — |
| Max Size | 2400×2400mm (with mullions) | mm |
| Mounting | Flanged / Duct insertion (slip-in) | — |
| Motorized Option | 24V/230V actuator — 0-10V / On-Off / BACnet | — |
| Compliance | SMACNA / AMCA / 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.

