Ashrae Duct Fitting Database Version 60005 Jun 2026

The DFDB allows engineers to input specific geometric dimensions and volumetric flow rates ( CFMcap C cap F cap M ) to automatically calculate local loss coefficients ( Cocap C sub o ) and the resulting pressure drop ( Key Features and Enhancements in Version 6.00.05

ASHRAE Duct Fitting Database (DFDB) Version 6.00.05 is a specialized engineering tool designed to calculate pressure losses in HVAC systems. It provides loss coefficient data for over

: A "Lite" version of the app is available on the Apple App Store for quick field calculations on iPhone and iPad.

The database solves this by cataloging the dimensionless loss coefficient ( C0cap C sub 0 ashrae duct fitting database version 60005

Enter fitting dimensions, including width, height, radius, or takeoff angles. Define Airflow Velocity: Enter the velocity at the fitting. Calculate

For many jurisdictions, utilizing ASHRAE-validated data is a requirement for code compliance. Building inspectors and commissioning agents look for standardized calculations to verify that a system will perform as advertised. Version 6.00.05 provides the documentation trail necessary to prove that the mechanical design adheres to industry best practices. Conclusion

Engineers rarely use the DFDB in isolation. Version 6.00.05 supports clean data exporting (often via CSV or text formats), allowing integration into third-party spreadsheet tools or external HVAC load calculation programs. How Version 6.00.05 Improves HVAC Workflows The DFDB allows engineers to input specific geometric

The database includes over 200 different fitting types. These cover a vast array of scenarios, from standard -degree elbows to complex bifurcations in exhaust systems. 2. Multi-Geometry Support

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: ASHRAE also developed a "Lite" app for iOS to bring these calculations to the field, designed by Carmel Software Corporation. The "Pain Point": Revit Integration Define Airflow Velocity: Enter the velocity at the fitting

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, allowing engineers to perform quick calculations and email reports back to their desktop for deeper analysis. Practical Application in HVAC Design Designers use the database to determine the External Static Pressure (ESP) of a system. This is critical for: Duct Fitting Database - ASHRAE