VCD: Volume Control Damper

A volume control damper (VCD) is an economical and reliable iron valve typically used in ventilation duct systems to stabilize pressure, regulate airflow, and reduce noise. Similar to an OBD, a VCD is generally used in ventilation ducts to adjust airflow, while an OBD is used on the back of an air vent to adjust airflow.

Standard Construction

• Manual (Figure 1) or electric (Figure 2)* control
• Zinc-iron blades are available in two options: single blade or double-skin.
• Shafts and connecting rods can be made of 304 or 316 stainless steel.
• Stainless steel side sealing strip
• The blades can be arranged either parallel or opposite (Figure 1 shows opposite blades).
• Minimum dimensions are 150W x 150H x 200(D) mm
• The maximum size is 1500W x 1500H mm.
• Components exceeding the maximum size will be connected in segments.

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