The interface allows for inputs (such as flow rate and dimensions) to update results instantly.

The ASHRAE Duct Fitting Database is a comprehensive collection of duct fitting loss coefficients, which are used to calculate the pressure drop in duct systems. The database is a valuable resource for engineers, designers, and contractors who work with heating, ventilation, and air conditioning (HVAC) systems.

If you crack open the raw data behind a version like 60005, you find a fascinating complexity. Let’s look at (a standard Round 90-degree bend).

Older databases gave you one number for a fitting. Modern versions give you

: This specific version is typically provided as a single-user product via a one-year cloud-based subscription. Improvements in Version 6.00.05