Ashrae Duct Fitting Database Excel [hot] Jun 2026

including elbows, transitions, junctions, and dampers.

| Column | Description | |--------|-------------| | Fitting ID | Unique code (e.g., “CD3-9”) matching ASHRAE’s classification | | Fitting Type | Elbow, round tap, rectangular mitered, etc. | | Shape | Round, rectangular, flat oval | | Description | Detailed geometry (e.g., “90° smooth radius elbow, r/D=1.5”) | | Parameters | Variables like radius ratio, aspect ratio, angle, area ratio | | Loss Coefficient (C or Co) | The primary output for pressure drop calculation | | Reference Table/Figure | ASHRAE Handbook source location | ashrae duct fitting database excel

: Search by code (e.g., SR4-2 for rectangular transitions, CR3-1 for elbows). Generate Results : The software calculates the loss coefficient (K-factor) and the associated pressure loss in Pascals or inches of water column. 2. Transfer Data to Excel including elbows, transitions, junctions, and dampers

In dedicated modeling software, changing a fitting parameter might require navigating through multiple menus and re-running a simulation. In an Excel sheet populated with DFDB data, the engineer simply changes a dropdown menu from "Radius Elbow" to "Square Elbow," and the formulas instantly update the total static pressure calculation. Generate Results : The software calculates the loss