While the interface is utilitarian, the value of the data—specifically the updates regarding stacked fitting interference—justifies the cost for serious HVAC designers. If you are tired of guessing on pressure drops or fighting with client specifications during commissioning, this software is your best defense.
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Pictorial outlines for each fitting to ensure accurate selection during the design process.
Before the age of cloud computing and integrated BIM (Building Information Modeling), the DFDB was available on CD-ROM. However, version 6.00.05 modernized the platform by introducing via an annual subscription, a shift that dramatically improved accessibility and data management.
From its integration into BIM workflows to its availability as a mobile app, the DFDB ensures that engineers have access to the most accurate and up-to-date loss coefficient data, whether they are in a high-rise office building or on a construction site. For any professional involved in the design of air distribution systems, proficiency with the ASHRAE Duct Fitting Database is not just an advantage—it is a necessity. Its data, driven by rigorous standards like ASHRAE 120, forms the foundation for efficient, cost-effective, and high-performing HVAC systems in buildings around the world.
Accurate pressure drop data from the database is critical for selecting high-efficiency fans and VFD drives that match the actual system resistance. Access and Alternatives
This software eliminates the need for manual interpolation of complex charts. By inputting specific parameters such as air velocity, duct dimensions, and construction material, the software calculates:
Version 6.00.05 introduces critical software stability fixes and data refinements over its predecessors. 1. Extensive Fitting Library
Interconnects converging and diverging flow equations for complex junctions. 3. Seamless Integration and Export
Version 6.00.05 is not a major overhaul. If you are currently on v6.00.04, the update is low-risk. If you are migrating from v5.x, be prepared to see different pressure drop results—the new coefficients are generally more accurate for low-velocity systems.
The user interface includes a robust search tree categorized by cross-section (Round, Rectangular, Flat Oval) and function (Supply, Exhaust, Common). Users can bookmark frequently used fittings to speed up repetitive workflow tasks. Technical Specifications and System Requirements
Avoid using high-loss, abrupt transitions just to save space. Use the database to test how a slight change in a transition angle impacts the overall fan static pressure.
Required to view native PDF fitting diagrams embedded within the software help files.
Earlier versions occasionally suffered from UI freezes when running on modern 64-bit Windows operating systems or scaling on high-resolution monitors. Version 6.00.05 resolves legacy compatibility bugs, providing a smoother user experience. How to Use the Database in a Standard Workflow
The is a specialized HVAC tool providing loss coefficient data for over 200 round, rectangular, and flat oval duct fittings. Released on April 5, 2016, this specific sub-version introduced key additions and fixes to improve calculation accuracy. Key Updates in Version 6.00.05
Unlike older versions that required 32-bit Windows or legacy database drivers, Version 6.00.05 is fully compatible with:
