Ashrae Duct Fitting Database Version. 6.00.05 Extra Quality -

Pictorial outlines for each fitting to ensure accurate selection during the design process.

The is a high-precision digital tool designed for HVAC engineers to calculate pressure loss across complex duct networks. Developed by ASHRAE in collaboration with Carmel Software Corporation , this version serves as the industry standard for determining duct fitting loss coefficients (C-factors). Key Features of Version 6.00.05 ashrae duct fitting database version. 6.00.05

Version 6.00.05 wasn't perfect. Engineers complained that the — extra losses for poorly assembled fittings — were too conservative. Contractors argued that they drove up fan sizes and costs. In one memorable case, a school district in Florida rejected the database's guidance on flexible duct bends, calling it "theoretically correct but practically impossible" to achieve in field conditions. Pictorial outlines for each fitting to ensure accurate

The ASHRAE Duct Fitting Database (DFDB) Version 6.00.05 is a cloud-based application designed to calculate pressure losses across over 200–250 fitting types, providing essential data for HVAC system design. The tool supports I-P and SI units, enables project-specific file management, and includes a visual interface for selecting round, rectangular, and flat oval fittings. For more details, visit ASHRAE . Duct Fitting Database - ASHRAE Key Features of Version 6

Version 6.00.05 introduced specific enhancements and critical bug fixes to improve the accuracy of duct system simulations: : CD11-4 : Straight Duct, Round, Constant Equal Friction. CD11-3 : Straight Duct, Round, Velocity Limited.