Dampers & Airflow Control Devices

Fire dampers are designed to close automatically when heat activates a fusible link, preventing fire from spreading through ducts across fire-rated compartments. Smoke dampers are designed to control the movement of smoke, opening or closing as part of a smoke management system. Fire & Smoke Dampers (FSD) combine both functions.

Fire dampers require periodic testing as per local fire safety regulations, typically annually or every 2-4 years depending on the building type and authority requirements. Our testing services include drop tests, fusible link inspection, actuator testing, and end switch validation to ensure compliance.

Volume Control Dampers (VCD) are manually adjustable devices installed in duct branches to balance airflow. They allow technicians to regulate the volume of air delivered to different zones, ensuring proper air distribution, maintaining pressure balance, and enabling precise air balancing across the system.

Common causes include electrical faults, control wiring issues, mechanical binding of damper blades, corrosion, incorrect torque specifications, and end-of-life wear. Our repair services address actuator failure through diagnosis, replacement, and testing to restore proper operation.

Yes, we offer Annual Maintenance Contracts (AMC) for dampers and airflow control devices. Our services include damper blade inspection, actuator testing, fusible link replacement, seal inspection, end switch testing, lubrication, cleaning, and documentation maintenance for compliance.

Backdraft dampers are one-way devices that allow airflow in only one direction and automatically close to prevent reverse airflow. They are commonly used in exhaust systems, fresh air intakes, and applications where backflow prevention is critical to maintain pressure balance and prevent contamination.

Yes, we execute retrofitting projects where manual dampers are motorized for BMS integration and automatic control. This involves installing actuators, control wiring, and position indicators, along with validation of torque requirements and integration with building automation systems.

Pressure relief dampers are designed to automatically open or close to maintain safe pressure levels in pressurized spaces such as stairwells, lobbies, or cleanrooms. They prevent over-pressurization, ensure proper door operation, and maintain pressure differentials required for smoke control and contamination control.

We ensure compliance through proper damper sizing, fire rating verification (1hr/2hr), correct installation with sleeves and fire barrier sealing, periodic drop testing, fusible link inspection, and thorough documentation. Our testing validates readiness for fire audits and authority inspections.

Key factors include damper sizing calculation, pressure drop evaluation, blade alignment, actuator torque validation, fire rating compliance, leakage class requirements, and accessibility for inspection. Proper selection ensures reliable operation, safety compliance, and system efficiency.