Ashrae Duct Fitting Database 2016

Ashrae Duct Fitting Database 2016

| Category | Description | Example Fitting | | :--- | :--- | :--- | | | Flat oval & round fittings | Round 90° smooth elbow | | C1 | Rectangular elbows | Mitered elbow with splitter vanes | | C2 | Round & rectangular transitions | Conical diffuser | | C3 | Converging & diverging junctions | 45° lateral wye | | C4 | Inlet & outlet conditions | Hooded exhaust inlet | | C5 | Dampers & control devices | Opposed blade damper (open) | | C6 | Duct-mounted equipment | Filter, coil, heat exchanger | | C7 | Flexible duct fittings | Flex elbow (with compression) |

Practical recommendations

For decades, engineers have relied on the to calculate these losses accurately. The 2016 version remains a critical milestone in the software’s evolution, bridging the gap between static handbook tables and dynamic, digital calculation. ashrae duct fitting database 2016

Each fitting is assigned a unique 4-to-6 digit ID, such as (rectangular 90° mitered elbow). The database then provides: | Category | Description | Example Fitting |

: Includes loss coefficient tables for round, rectangular, and flat oval fittings categorized by supply, exhaust, and common (supply/return) functions. The database then provides: : Includes loss coefficient

The core data within the DFDB is validated by ASHRAE Standard 120. This standard ensures that the loss coefficients for duct fittings are based on rigorous and repeatable testing, providing confidence that the digital tool is built on a sound foundation of physical data [8†L27-L31].

The ASHRAE Duct Fitting Database 2016!