Each fitting record contains:
: Supports both I-P (Inch-Pound) and SI (International System) units. Version Evolution and Availability Duct Fitting Database - ASHRAE
Related search terms (These can help if you want deeper or newer sources.) ashrae duct fitting database 2016
The was a major update that:
: While the database focuses on geometry, remember that different materials (e.g., fiberglass vs. sheet metal) have different friction rates that must be combined with the fitting's dynamic loss. Duct Fitting Database - ASHRAE Each fitting record contains: : Supports both I-P
The "2016" designation is critical, as it incorporates updated research on Computational Fluid Dynamics (CFD) and empirical testing, superseding previous versions from 2005, 2009, and 2013.
| Category | Description | Example Fitting | | :--- | :--- | :--- | | | Flat oval & round fittings | Round 90° smooth elbow | | C1 | Rectangular elbows | Mitered elbow with splitter vanes | | C2 | Round & rectangular transitions | Conical diffuser | | C3 | Converging & diverging junctions | 45° lateral wye | | C4 | Inlet & outlet conditions | Hooded exhaust inlet | | C5 | Dampers & control devices | Opposed blade damper (open) | | C6 | Duct-mounted equipment | Filter, coil, heat exchanger | | C7 | Flexible duct fittings | Flex elbow (with compression) | Duct Fitting Database - ASHRAE The "2016" designation
ASHRAE also offers a for iOS devices (iPhone and iPad), designed for quick field calculations.