The is a specialized software tool used by HVAC engineers to calculate pressure losses across more than 200 types of round, rectangular, and flat oval duct fittings.
: Allows users to save fittings into specific project files that can be stored and transferred. ASHRAE Duct Fitting Database (DFDB) The is a
The ASHRAE Duct Fitting Database is a digital repository of loss coefficients (C-values) for thousands of duct fittings. It is the electronic companion to the ASHRAE Handbook—Fundamentals and the HVAC Duct Construction Standards . Before this database, engineers relied on printed tables and manual interpolation—a time-consuming and error-prone process. ASHRAE Duct Fitting Database (DFDB) The is a