Ashrae Duct Fitting Database Version. 6.00.05 📥

Includes round straight duct options for velocity-limited and equal friction designs, and new flexible elbow variants ( Extended Input Ranges:

) derived from decades of laboratory testing. Designers use these precise values rather than broad estimates to select optimal fan sizes and ensure balanced airflow throughout a commercial or residential building. Key Features of Version 6.00.05

Version 6.00.05 introduces critical software stability fixes and data refinements over its predecessors. 1. Extensive Fitting Library

) tables compiled from decades of mechanical laboratory research, this version ensures strict compliance with building codes and the ASHRAE Handbook—Fundamentals. Precise calculation of External Static Pressure (ESP) using this software prevents over-sizing or under-sizing critical commercial HVAC equipment like Air Handling Units (AHUs) and fans. ashrae duct fitting database version. 6.00.05

The solution was a — a structured collection of fitting definitions, each with a unique identifier (like "EL-1-1" for a smooth radius elbow) and a set of loss coefficient equations as a function of velocity pressure or Reynolds number.

Export branch loss coefficients into a .CSV format from DFDB v6.00.05 and import via the "Fitting Library" editor. This ensures your energy model reflects actual dynamic losses, not arbitrary defaults (like 100% of velocity pressure).

The is the industry-standard software tool used by HVAC engineers to accurately calculate fluid flow pressure losses across more than 200 distinct types of round, rectangular, and flat oval duct fittings. By utilizing standardized aerodynamic loss coefficient ( Cocap C sub o The solution was a — a structured collection

While the interface is utilitarian, the value of the data—specifically the updates regarding stacked fitting interference—justifies the cost for serious HVAC designers. If you are tired of guessing on pressure drops or fighting with client specifications during commissioning, this software is your best defense.

Automatically adjusts calculations based on Reynolds numbers and velocity pressures.

This version is not a cosmetic overhaul but a precision update. The most significant changes include: this software is your best defense.

Version 6.00.05 optimizes the internal algorithms that interpolate data points between complex fitting geometries, reducing calculation discrepancies in non-standard duct dimensions. Why Version 6.00.05 Matters to HVAC Engineers Energy Efficiency & Compliance

One common source of error is using the wrong velocity pressure (upstream vs. downstream). Version 6.00.05 explicitly labels whether the loss coefficient is based on: