Complete Guide to the ASHRAE Duct Fitting Database (Version 6.00.05)
Within two hours, Maria had modeled the entire air distribution system for floors 12 through 20 — a task that would have taken two days with the old method. But the real payoff came during the .
The software is delivered as a , which requires Adobe Acrobat Reader 8.0 or higher and the free FileOpen plug‑in to enforce copyright protections. Licensing is handled through the ASHRAE customer portal.
Understanding the evolution helps users appreciate the improvements in Version 6.00.05. According to ASHRAE’s own documentation, Version 5.0 included modifications to a substantial list of fittings, including:
At 9:00 AM, she opened her duct sizing software and imported the file. Instead of hand-entering coefficients, she selected a 24" round 90-degree mitered elbow with three turning vanes. The database returned: ashrae duct fitting database version. 6.00.05
Here’s a concise write-up on :
Mastering Airflow: A Deep Dive into the ASHRAE Duct Fitting Database Version 6.00.05
Access to supply, exhaust, and return fittings for round, rectangular, and flat oval duct geometries.
The data within the tool is structured alphabetically and numerically by fitting configuration: Duct Fitting Database - ASHRAE Complete Guide to the ASHRAE Duct Fitting Database
In the autumn of 2018, a team of HVAC engineers at a mid-sized mechanical engineering firm in Chicago found themselves trapped in a recurring nightmare. Their project: a 42-story mixed-use tower in downtown Boston, with thousands of feet of ductwork snaking through tight shafts, above ceilings, and between structural beams. Every fitting — every elbow, tee, transition, and damper — had to be sized for airflow, but more critically, it had to be modeled for . Get it wrong, and the fans would be undersized (leading to anemic airflow, cold complaints, and mold risks) or oversized (wasting energy and capital).
Fully indexes code variations for Supply, Exhaust, and Common (Return) duct functions.
Version 6.00.05 introduces several significant upgrades that distinguish it from earlier releases:
Engineers and HVAC designers, the latest maintenance update for the ASHRAE Duct Fitting Database (DFDB) Licensing is handled through the ASHRAE customer portal
By staying up-to-date with the latest developments in the ASHRAE Duct Fitting Database, engineers can ensure that they have access to the most accurate and reliable data for designing efficient and effective HVAC systems.
Then automatically calculate pressure drops for entire duct networks.
Efficient ductwork is the backbone of any high-performance HVAC system. For engineers and designers, calculating pressure loss with pinpoint accuracy is critical to equipment selection and energy efficiency. The ASHRAE Duct Fitting Database (DFDB) Version 6.00.05 remains the industry standard for these calculations, providing a comprehensive digital library of loss coefficients for an immense variety of fittings.
Features pictorial outlines of every fitting to ensure the correct geometry is selected during the design phase. Access and Availability Duct Fitting Database - ASHRAE