While there is no direct "live link" plugin that automatically syncs the ASHRAE Duct Fitting Database (DFDB)
The ASHRAE Duct Fitting Database is an indispensable tool for HVAC engineers seeking accurate, efficient duct pressure loss calculations. While there is no single "Excel link" providing the entire database as a spreadsheet, robust export functionality and third-party Excel-based calculators offer effective integration pathways. Whether accessed through the official cloud subscription, the free mobile Lite app, or older standalone versions, the DFDB empowers engineers to design better, more efficient air distribution systems.
For HVAC engineers, mechanical designers, and energy modelers, accurate pressure loss calculation is the backbone of a well-performing air distribution system. At the center of this universe lies the .
Some versions of the DFDB mobile app and desktop software allow you to share or export reports as spreadsheets for further analysis. Key Formulas Used in Database Excel Sheets ashrae duct fitting database excel link
Step 4 — Standardize loss metric: K vs Equivalent Length
While the official tool is a standalone application, many engineers use third-party Excel templates that incorporate ASHRAE data: Duct Fitting Database - ASHRAE
A free version called Duct Fitting Database Lite is available for iPhone and iPad , allowing for quick field calculations. While there is no direct "live link" plugin
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(Deducted 0.5 stars only for the occasionally clunky Excel Add-In setup process).
If you link your calculation sheet to an external workbook containing the database, the formulas will break when you email the file to a client. to keep the file completely self-contained and portable. To help refine your calculation templates, tell me: Are you designing in Imperial (IP) or Metric (SI) units? Key Formulas Used in Database Excel Sheets Step
Many firms use the Titus SRG Calculator or custom-built sheets using Darcy-Weisbach equations to mirror the database's logic. Tool Review: Key Features & Performance ⚙️ Core Functionality
ASHRAE offers a cloud-based version of the DFDB via an annual subscription. This version includes loss coefficient tables for over 200 fitting types (round, rectangular, and flat oval).
Sites like MEP Excel offer custom-built Duct Fitting Calculators that use VBA and external data folders to mimic ASHRAE functions within an Excel interface.