Motorized Volume Control Damper in Cleanroom Ductwork Airflow controlling

VCD Motorized Volume Control Damper Used for Cleanroom HVAC

** for Air Supply & Exhaust

Product Features 

1.  Corrosion & Chemical Resistance: The primary feature is the stainless steel body and internal components, offering superior resistance to moisture, condensation, chemical agents, and corrosive atmospheres. This makes them ideal for harsh environments like laboratories, swimming pools, coastal areas, industrial exhaust, and cleanrooms.
2.  Hygienic & Durable: The non-porous, smooth surface prevents microbial growth, is easy to clean, and ensures long-term structural integrity without rusting, leading to a very long service life.
3.  Electric Actuation: They are equipped with a modulating or on/off electric actuator (typically 24VAC/DC or 230VAC) for precise and automated control. The actuator receives signals from a thermostat, Building Automation System (BAS), or pressure sensor.
4.  Tight Shut-Off & Leakage Control: High-quality models provide excellent sealing in the closed position (e.g., bubble-tight shutoff), minimizing energy loss from unwanted airflow in shut-down branches of the system.
5.  Wide Operating Range: Designed to function reliably across the typical temperature and pressure ranges found in HVAC systems.

Primary Functions / Purpose

Their core role in a ventilation system is automated airflow regulation and zoning control. Specifically, they:

1.  Modulate or Isolate Airflow: Automatically adjust the damper blade position (from fully open to fully closed) to precisely control the volume of air passing through a specific duct branch.
2.  Enable Zone Control: Allow for individual temperature and airflow control in different building zones by regulating the supply or exhaust to each area based on demand.
3.  Maintain Pressure Relationships: Help balance system pressures and maintain critical positive or negative pressure differentials (e.g., in isolation rooms or laboratories) by controlling exhaust or supply in conjunction with other devices.
4.  Integrate with Building Automation: Serve as a key controllable terminal device, receiving commands from a central BMS/BAS to implement energy-saving strategies, schedule-based operations, and demand-controlled ventilation.
5.  Isolate Sections: Provide tight shut-off to isolate specific duct sections for maintenance, fire containment (when used as part of a smoke control system), or seasonal system adjustments.

** Applications  in the duct of ventilation or air-conditioning systems for below industries:

- Pharmaceutical and biotechnology facilities.  

- Chemical processing and manufacturing plants.  

- Laboratories handling hazardous substances.  

- Hospital and medical ventilation system.

- Food and beverage production areas requiring odor control.