Ashrae Duct Fitting Database Version. 6.00.05 Updated ⚡ Verified Source

Users enter basic variables—such as volumetric flow rate (CFM or L/s), air density, velocity, and fitting dimensions—and the software instantly computes: Velocity pressure ( Vpcap V sub p Loss coefficient ( Cocap C sub o Total pressure drop ( 4. Flexible Unit Systems

: Includes detailed tables and pictorial outlines for more than 200 to 240+ round, rectangular, and flat oval fittings.

Do you need assistance mapping a to its correct ASHRAE fitting code? ashrae duct fitting database version. 6.00.05

The true power of version 6.00.05 is realized when it is integrated into broader design workflows. While a standalone tool is useful, the DFDB becomes indispensable when linked to Building Information Modeling (BIM) software like and other HVAC design tools.

In any fluid flow system, moving air experiences resistance when it changes direction, converges, diverges, or alters velocity. Engineers quantify this resistance using a dimensionless loss coefficient ( Cocap C sub o Users enter basic variables—such as volumetric flow rate

Similar physical reference data can be found in the SMACNA HVAC Systems Duct Design manual, though the ASHRAE digital database allows for faster, more complex computations. Duct Fitting Database - ASHRAE

Its primary function is to allow engineers to quickly and accurately calculate the pressure loss (K-value) for a specific duct fitting. By inputting parameters like flow rate and duct dimensions, users obtain precise loss coefficient data, replacing time-consuming manual lookups with automated, reliable results. Version 6.00.05 is delivered via a one-year cloud-based subscription, which can be accessed through both a web interface and a mobile app for iOS devices. The true power of version 6

The utility of the DFDB lies in its comprehensive coverage of fitting types. Version 6.00.05 includes loss coefficient data for different fittings in three primary shapes: round , rectangular , and flat oval ducts. For mobile users, the DFDB app boasts coverage of 250+ fittings . These fittings are further categorized by their function: