Ashrae Duct Fitting Database Excel Jun 2026

The ASHRAE Duct Fitting Database is available in several official formats:

. These sheets typically require inputs like duct material, roughness, and flow rates to calculate straight duct friction loss. Third-Party Templates : Sites like offer specialized Duct Fitting Calculators ashrae duct fitting database excel

: Locate the specific fitting (round, rectangular, or flat oval) and retrieve its pictorial outline and loss coefficient. The ASHRAE Duct Fitting Database is available in

This newer version offers cloud‑based access by annual subscription. The database interface features fully available input, output, calculations, and table data properties, with easily viewable calculations that update in real time. Version 6 includes an integrated database with streamlined access to all fitting data. This newer version offers cloud‑based access by annual

In an HVAC system, the total pressure loss is a sum of losses from straight ducts (friction loss) and fittings (dynamic loss). The dynamic pressure loss for a fitting is given by: [ \Delta p_t, fitting = C \times p_v ] Here, ( C ) is the loss coefficient from the ASHRAE database, and ( p_v ) is the velocity pressure of the air in the duct.