Version. 6.00.05 __exclusive__ - Ashrae Duct Fitting Database

ASHRAE provides extensive documentation for the DFDB. Here are some of the most common questions and their answers based on the official FAQ for version 6.0.

The ASHRAE Duct Fitting Database is an essential tool for HVAC engineers and designers. Some of the benefits of using the database include:

Detail the used for specific fittings like elbows or transitions.

Unlike older versions that required 32-bit Windows or legacy database drivers, Version 6.00.05 is fully compatible with: ashrae duct fitting database version. 6.00.05

Export branch loss coefficients into a .CSV format from DFDB v6.00.05 and import via the "Fitting Library" editor. This ensures your energy model reflects actual dynamic losses, not arbitrary defaults (like 100% of velocity pressure).

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This is critical for accurate total pressure drop calculations, especially in diverging flows. ASHRAE provides extensive documentation for the DFDB

: Enter dimensions such as width, height, diameter, radius ratio, or upstream/downstream angles.

Modern design software (AutoCAD, Revit, TRACE 3D Plus, Trane Duct Designer, and Carrier HAP) often references the DFDB. Version 6.00.05 features a cleaner relational schema, making it easier for developers to query loss coefficients via SQL or REST APIs directly from the database. This means your Building Information Modeling (BIM) workflow can now auto-populate pressure drop calculations without manual coefficient lookups.

Advanced fluid dynamics software supports importing loss coefficients from the DFDB. Ensure you map the correct reference area and velocity index. Some of the benefits of using the database

The data strictly adheres to the companion ASHRAE Handbook—Fundamentals .

Navigate through the visual menu to select the shape (round, flat oval, rectangular) and specific fitting configuration.