| Feature | Description | |------|------| | | Over 200 entries covering elbows, transitions, tees, offsets, wyes, and more | | Pictorial Outlines | Each fitting includes a schematic drawing, making it easy to visually confirm the correct fitting type | | Dual Unit Support | Full support for both I‑P (Imperial) and SI (metric) units with automatic conversions | | Project Management | Fittings can be saved into project files; files are small enough to be easily stored and transferred | | Custom Fitting Support | Users can add or modify K‑values for project‑specific configurations | | Data Export | Export results as CSV or XML for integration into Excel, Revit, or other BIM/CFD tools | | Air Property Adjustment | Adjust air properties for any temperature, relative humidity, or altitude |
The current ASHRAE Duct Fitting Database (DFDB) version 6.00.05 ashrae duct fitting database version. 6.00.05
Historically, some designers relied on static friction charts or arbitrary "rules of thumb" (such as assuming a flat 0.1 inches of water column loss per 100 feet for the entire run, including fittings). This practice leads to two critical errors: | Feature | Description | |------|------| | |
Advanced fluid dynamics software supports importing loss coefficients from the DFDB. Ensure you map the correct reference area and velocity index. The ASHRAE Duct Fitting Database Version 6
The ASHRAE Duct Fitting Database Version 6.00.05 remains a cornerstone utility for mechanical engineers, designers, and energy auditors. By converting complex fluid dynamics into an accessible, highly accurate digital catalog, it bridges the gap between theoretical physics and practical HVAC design. Incorporating this tool into your design workflow ensures code compliance, enhances fan energy efficiency, and guarantees optimal indoor environmental quality.