Free CAD Blocks in DWG file format
File downloads for AutoCAD Drafting
Free AutoCAD Blocks
A library of HVAC duct symbols and devices - dampers, diffusers, registers, louvers, mixing box, flexible and lined ductwork, fire and volume dampers, and flow-direction markers - drawn to standard mechanical conventions for HVAC drafting. A free AutoCAD DWG file download.
| File format | DWG – opens in AutoCAD and all DWG-compatible CAD software |
|---|---|
| File size | 172.20 KB |
| Files included | 1 |
| Categories | Annotations, Mechanical and HVAC Symbols |
| License | Free for personal and commercial use – no attribution required |
