A damper is a valve or plate that stops or regulates the flow of air inside a duct, chimney, VAV box, air handler, or other air handling equipment. Manual Dampers - Michigan Precision Fabricators is one of the largest and most innovative manufacturers and a world wide leader of manual dampers. Round Balancing Damper, Manual Single Blade, Damper Dia 5 7/8 In, Frame Depth 6 3/8 In, Duct Dia 6 In, Frame Material Galvanized Steel, Blade 20 Gauge, Frame 20 Gauge.
Manual Duct Dampers | HVAC Express. Manual Duct Dampers or Spool Dampers are Ideal for use as an inline damper where manual air flow adjustment is needed. Available in multiple sizes.
Manual duct dampers, also known as spool dampers, are ideal for use as an inline damper and allow for manual air flow adjustments. Guide to Zone Dampers for Heating & Cooling Air Duct Controls How to install & use manual or automatic HVAC zone dampers.