Standard HVAC duct takeoff configurations for rectangular and round branch connections to main ducts. The rectangular branch connection features a forty-five degree fitting with a D/4 offset, an internal balance damper, and specified air flow direction. The round branch connection utilizes a saddle fitting mounted on the main duct with a corresponding balance damper positioned within the round branch line.
D 45° CONNECTION AIR FLOW BRANCH D/4 MAIN DUCT BALANCE DAMPER AIR FLOW SADDLE ON ROUND DUCT ROUND BRANCH BALANCE DAMPER ROUND (OR RECT.) MAIN DUCT RECTANGLE BRANCH ROUND BRANCH TPO REINFORCED TPO ROOFING HEAT FUSED TPO SLIP SHEET 3/4" PLY SHEATHING
Members view this detail in full resolution, download the CAD files (SVG, PDF), and can adapt it in the built-in CAD editor — export DXF, DWG, or PDF.
Start membership