Ashrae Duct Fitting Database 2016 __top__ -

) for specific fittings. This value represents the dynamic pressure loss caused by turbulence as air moves through turns, transitions, or obstructions.

Here’s a technical write-up on the :

The is a digital compilation of loss coefficients ((C)) for nearly every conceivable duct fitting used in commercial and residential HVAC systems. It is the digital companion to the printed ASHRAE Handbook—Fundamentals (Chapters 21 and 34) and the ASHRAE Duct Fitting Database—CD (which, in 2016 moved toward more robust digital formats). ashrae duct fitting database 2016

The is an essential tool for mechanical engineers committed to accurate duct system design. Its expanded coverage, updated coefficients, and machine-readable format support modern energy codes (e.g., ASHRAE 90.1) and green building standards. For critical projects, it remains the industry gold standard—provided users understand its assumptions and apply engineering judgment. ) for specific fittings