Engineered Circular Air Regulators Misty Ref Round VCDs are fabricated from high-quality galvanized steel or aluminum. The single-blade design is reinforced for rigidity, ensuring it won’t vibrate or “flutter” even under high-velocity airflow.

Key Technical Features:

  • Beaded Frame: The casing features a “beaded” or rolled edge to provide extra strength and ensure a secure connection with flexible or rigid ducts.

  • Low-Leakage Blade: The circular blade is precision-cut to match the internal diameter. For high-performance needs, we offer Rubber Gasketed Blades for a nearly airtight shut-off.

  • Twin-Shaft Support: The blade is supported by a continuous shaft or heavy-duty pins with nylon bushings, preventing the blade from sticking or sagging over time.

  • Universal Mounting: Compatible with manual locking quadrants or electric actuators for automated zone control.