What are you prioritizing (round, rectangular, or flat oval)?
The database provides loss coefficient tables for over 200 types of fittings, including:
Accurate pressure loss calculation is the foundation of efficient HVAC design. The ASHRAE Duct Fitting Database (DFDB) Version 6.00.05 stands as the industry-standard software application for engineers, designers, and balancing technicians seeking to precisely compute loss coefficients for a vast array of duct fittings. ashrae duct fitting database version. 6.00.05
Engineers can easily export loss coefficient reports into standard formats like Excel or CSV. This allows for seamless integration into external master static pressure spreadsheets or third-party BIM (Building Information Modeling) and HVAC load calculation software. Database Classification System
: Differentiated by supply, return, or exhaust configurations. Examples of Standard Fittings What are you prioritizing (round, rectangular, or flat oval)
This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later. Duct Fitting Database - ASHRAE
Why? Because 6.00.05 was the first version where the for each coefficient were published alongside the values. That transparency allowed engineers to run probabilistic pressure drop simulations — something unthinkable with older paper tables. Engineers can easily export loss coefficient reports into
Users can define specific altitude, temperature, and humidity parameters. The software automatically updates air density and viscosity calculations, ensuring precision for projects in high-altitude regions or specialized industrial environments. Data Export and Integration
Instead of just providing the pressure loss for a single selected fitting, this feature would allow you to compare design alternatives automatically. Fitting Alternatives Suggestion: