Ashrae Duct Fitting Database Version. 6.00.05 [portable] Site
The database retains its .DFD file format, but Version 6.00.05 introduces a plugin pathway for Revit and AutoCAD MEP via a COM interface. This allows dynamic lookup of C-values directly from a 3D model—a major time-saver for large projects.
While the DFDB can run as a standalone desktop application, its primary value in modern workflows is its integration capability. Major building information modeling (BIM) and computational fluid dynamics (CFD) software packages utilize the underlying ASHRAE DFDB datasets. Version 6.00.05 ensures that software hooks link correctly with modern CAD engines, allowing for automatic pressure drop reports generated straight from a 3D digital twin. Step-by-Step Workflow: Using the DFDB ashrae duct fitting database version. 6.00.05
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Reducing Safety Factors: With more accurate data, engineers can move away from "rule of thumb" percentages and use calculated values. The database retains its
The is a high-precision digital tool designed for HVAC engineers to calculate pressure loss across complex duct networks. Developed by ASHRAE in collaboration with Carmel Software Corporation , this version serves as the industry standard for determining duct fitting loss coefficients (C-factors). Key Features of Version 6.00.05 Reducing Safety Factors: With more accurate data, engineers
ASHRAE recognizes that design work happens in many environments—from the office to the job site. To serve its users, the DFDB is available in several formats:
The ASHRAE Duct Fitting Database is a specialized software package containing loss coefficient data for more than 200 round, rectangular, and flat oval duct fittings.

