: Includes 200+ fitting types with pictorial outlines and real-time calculation updates for airflow, fitting info, and pressure loss. Single-User Product : This version is strictly licensed for individual use. Important Safety Note
V=QAcap V equals the fraction with numerator cap Q and denominator cap A end-fraction From velocity, it calculates the velocity pressure ( Pvcap P sub v ) using air density (
Version 6.00.05 serves as a digital repository of loss coefficient tables for over 200 fitting types, including round, rectangular, and flat oval geometries. It is primarily used by design engineers to determine the required to properly size fans and air handling units (AHUs).
The ASHRAE Duct Fitting Database (DFDB) is a foundational tool for mechanical, electrical, and plumbing (MEP) engineers, HVAC designers, and energy auditors. It provides precise pressure loss coefficients for a vast range of duct fittings.
Using unlicensed engineering software violates intellectual property laws and can void professional liability insurance. Free and Low-Cost Alternatives for Duct Design
Choose from round, rectangular, or flat oval.
Includes new additions like flexible elbows (CD3-22, CD3-23) and constant equal friction straight ducts (CD11-4).
Access loss coefficient tables for round, rectangular, and flat oval duct fittings.
A word of caution appears across many forums and download portals. Old installer files for (and sometimes 6.00.05 beta) are available on third-party download websites like Freedownloadmanager.org and MEPDetails.com .
The ASHRAE Duct Fitting Database: Understanding Version 6.00.05 and Access Options
: The current version is primarily cloud-based, ensuring users have the most updated data. Free Alternative: Duct Fitting Database Lite App
does not publicly release its Duct Fitting Database for free. The database is a proprietary, commercially licensed product used with design software (like Wrightsoft, Elite, or Trane Duct Designer). Version numbers like "60005" do not correspond to any official ASHRAE release I can verify; official versions are typically tied to ASHRAE Fundamentals Handbook updates (e.g., 2005, 2009, 2013, 2017, 2021).
Many designers search for "ASHRAE duct fitting database version 6.00.05 free" to streamline their engineering workflow. This article explains what this software does, the status of version 6.00.05, and how to access these engineering tools legally. What is the ASHRAE Duct Fitting Database?