Ashrae — Duct Fitting Database Version. 6.00.05 !!top!!
| Tool | Purpose | |------|------| | | Quick reference for approximating duct sizes and equivalent sizes of sheet metal duct versus flexible duct (compressed at 4%, 15%, and 30%) | | SMACNA HVAC Duct Construction Standards | Provides fabrication and installation requirements that complement the DFDB’s loss coefficients | | ACCA Manual Q | Low‑pressure, low‑velocity duct system design guide that includes quick‑fitting loss tables compiled from ASHRAE and SMACNA handbooks | | DuctSizer | Determines appropriate round, rectangular, or oval duct sizes based on flow and velocity |
| Feature | Description | |------|------| | | Over 200 entries covering elbows, transitions, tees, offsets, wyes, and more | | Pictorial Outlines | Each fitting includes a schematic drawing, making it easy to visually confirm the correct fitting type | | Dual Unit Support | Full support for both I‑P (Imperial) and SI (metric) units with automatic conversions | | Project Management | Fittings can be saved into project files; files are small enough to be easily stored and transferred | | Custom Fitting Support | Users can add or modify K‑values for project‑specific configurations | | Data Export | Export results as CSV or XML for integration into Excel, Revit, or other BIM/CFD tools | | Air Property Adjustment | Adjust air properties for any temperature, relative humidity, or altitude |
| Feature | Version 5.0.10 | Version 6.00.05 | | :--- | :--- | :--- | | | Physical CD-ROM | Cloud-based online access & App Store | | User Interface & Calculations | Likely required more manual steps for calculation and data access | Integrated database with real-time updates, chosen via "Lost focus"/"Change"/"Calculate button" | | Compatibility | Legacy Windows, iOS versions | Modern web browsers, iOS 16 and iPhone 14 Pro | | Licensing | Typically single-user license on one machine | Annual, cloud-based single-user subscription (iOS app a one-time purchase) | ashrae duct fitting database version. 6.00.05
: Users enter flow rates and fitting dimensions to automatically obtain loss coefficient data and associated pressure loss Functional Categories : Organized by duct function, including supply, exhaust, and common (supply/return) Project Management
: The Version 6 interface allows for real-time updates—meaning calculations refresh instantly as you adjust input fields. Access and Availability ASHRAE Duct Fitting Database v6.00.05 is available as a single-user cloud-based subscription For professionals on the move, ASHRAE also offers the DFDB Lite app Apple App Store | Tool | Purpose | |------|------| | |
The latest version of the ASHRAE Duct Fitting Database, version 6.00.05, offers several significant enhancements over its predecessors. Some of the key features include:
The ASHRAE Duct Fitting Database is a software tool that contains a vast library of duct fittings, including elbows, tees, wyes, and transitions. These fittings are used to connect ducts in heating, ventilation, and air-conditioning systems, and their performance has a significant impact on system efficiency, airflow, and pressure drop. The database provides detailed information on the aerodynamic performance of each fitting, allowing designers to accurately calculate pressure drop, airflow, and energy losses. These fittings are used to connect ducts in
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Enhanced stability when running alongside modern CAD and BIM software. 3. Flexible Unit Systems