Englisch
DeutschCurrent
Arabisch
Französisch
indonesisch
Japanisch
Koreanisch
Malaiisch
Portugiesisch
Russisch
Spanisch
Thailändisch
Türkischer Sprache
Vietnamesisch
Cleanroom Luftverteilungssysteme
Variable Air Volume Control Damper
A sensor-equipped modulating damper that compares measured airflow with a remote setpoint and repositions opposed blades as demand changes.
- Closed-Loop Airflow Control
- Averaging Pressure Sensor
- Modulating Opposed Blades
- BMS Setpoint Interface
Produkteinführung
The variable air volume control damper combines a rectangular galvanized casing, opposed control blades, an averaging differential-pressure sensor and a matched electronic controller-actuator assembly. Pressure measured at several points across the inlet is converted into an airflow signal and compared with the commanded setpoint. The actuator then moves the blade bank until the measured value returns to the required range. Replaceable edge seals and enclosed blade gears support low-leakage shut-off and keep the linkage outside the main airstream.
Key Features
Opposed airfoil blades provide progressive modulation across a broad minimum-to-maximum airflow range.
The controller can accept an analog or digital setpoint for temperature, occupancy or room-pressure sequences.
External electronics, shaft indication and replaceable seals simplify functional checks without removing the damper.
Kunden Produktbedenken
Accurate VAV control depends on a usable sensor signal, stable inlet conditions, correct actuator authority and a minimum airflow that protects the room process.
A single pressure pickup reports an incorrect flow value behind an elbow.An averaging sensor samples several locations and a straight inlet section reduces profile distortion.
The actuator hunts because the controller gain is too aggressive for the duct response.Matched actuator timing and tuned control parameters provide stable movement around the airflow setpoint.
Closing below the validated minimum airflow disrupts room pressure and dilution.Programmable minimum and maximum limits keep the commanded airflow inside the operating envelope.
Blade leakage prevents an unused branch from isolating during setback.Tip and jamb seals combined with opposed blades improve shut-off when the controller receives a close override.
Typische Anwendungen
Cleanroom supply-air modulationLaboratory room exhaust controlPressure-cascade airflow trackingDemand-controlled pharmaceutical support roomsVariable-volume healthcare ventilation
Technische Parameter
Typical mechanical construction ranges for a rectangular electronic VAV control damper are listed below.
| Core Material | Galvanized-steel opposed control blades with TPE seals and aluminum averaging pressure sensor |
|---|---|
| Panel Dicke | 0.8–1.5 mm blade and casing components |
| Effektive Breite | 200–1000 mm nominal rectangular airway width |
| Maximale Länge | Up to 1200 mm casing length with acoustic cladding or service section |
| Stahl facing Dicke | 0.8–1.0 mm galvanized external casing sheet |
| Kerndichte | Approximately 7850 kg/m³ for the galvanized steel blade bank |
| Thermische Leitfähigkeit | Approximately 45–55 W/(m·K) for the steel airflow components |
| Oberfläche Finish | Galvanized casing with corrosion-protected gears, shaft and actuator bracket |
| Gemeinsamer Typ | Double-flanged casing with geared opposed blades, replaceable seals and external direct-coupled actuator |
| Customisierung | Verfügbar je nach beabsichtigter Anwendung und Betriebsumgebung. |
Verfügbare Optionen
Analog 0–10 V or digital network controlRoom-pressure or duct-pressure control programAcoustic casing and downstream attenuatorLow-leakage blade seals and spring-return actuator
Planning a Variable Air Volume Control Damper specification?
Senden Sie uns Ihre Abmessungen, Installationsbedingungen, Leistungsziele und gewünschte Oberflächenveredelung.
