: Features pictorial outlines to help engineers select the correct fitting geometry. Real-Time Updates
This article is for informational purposes. Users should always refer to official ASHRAE documentation and licensing terms for the most current information. ASHRAE reserves all rights to its intellectual property, and unauthorized distribution or derivative works may violate ASHRAE policies.
. This file can be opened on a desktop for further analysis or integration into larger project files. Systematic Calculation : In a typical design "story," an engineer identifies the critical path
If you are using an API or web-linked portal, write a VBA function that maps your inputs: ashrae duct fitting database excel link
is available for iOS/Android, facilitating quick field calculations. Integration Capabilities
often share calculation templates that mirror ASHRAE's methodology. Revit Integration: For 3D modeling, the Duct Fitting Table Viewer
per path → fan sizing.
There are several legitimate ways to access the DFDB and its exportable data.
The ASHRAE Duct Fitting Database (DFDB) is an essential tool for HVAC design engineers, providing accurate loss coefficients ( Cocap C sub o
Efficiency dictates success in modern HVAC engineering. Designers, mechanical engineers, and estimators constantly seek ways to accelerate calculations without sacrificing accuracy. : Features pictorial outlines to help engineers select
The electronic database has the capability to be linked to third-party duct design programs , which may then export results to Excel. 3. Alternative Resources Duct Fitting Database - ASHRAE
Engineers often use the Excel link to bridge the gap between specific fitting losses and the total system pressure drop. Custom Analysis : Professionals often transfer data from the database to a custom Excel calculator
Beyond the official DFDB, several third-party developers have created Excel-based tools that incorporate the same loss coefficient data. The , an Excel-based software using VBA, allows users to perform pressure loss calculations for all types of ducts and fittings in both I-P and SI units. Another popular resource is the Duct Fitting Calculator Version 4.0 , a multi-unit edition that allows users to select multiple units for each input. ASHRAE reserves all rights to its intellectual property,