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ASHRAE membership is open to any person associated with heating, ventilation, air conditioning or refrigeration. ASHRAE is unique because its membership is drawn from a wide range of disciplines relating to the HVAC&R field. Approximately 51,000 individuals from more than 100 nations belong to the Society.

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ASHRAE members earn 15% off publications. Hundreds of titles are available including the complete collection of ASHRAE Standards including 90.1, 62.1 and 189.1.
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Resources & Publications
 

Duct Fitting Database CD

 

Updated Version 6.00.00 Offers Easy Viewing, Input and Navigation


See selected features

$199 (ASHRAE Member $169)
Purchase 

This database CD includes loss coefficient tables for more than 200 round, rectangular, and flat oval duct fittings.

Featuring pictorial outlines of each fitting, this CD is useful to design engineers dealing with a variety of duct fittings. For any given fitting, users enter the flow rate and fitting information and obtain loss coefficient data and associated pressure loss.

The CD includes printable table data for supply, exhaust, and common (supply/return) duct functions. Fittings may be saved into a project file, which is easily navigated using a pop-up window and is small enough to be stored and transferred. An "Explorer" view gives the user an integrated graphic view of all fittings and headings.

This 6.00.00 version includes an integrated database; fully available input, output, calculations, and table data properties; and easily viewable calculations that update in real time.

Looking for simultaneous user options? Multiple-user licenses for this product are also available.

Get the Updated App for your iPhone, iPod, or iPad

Update: The ASHRAE Duct Fitting Database (DFDB) for the iPhone and iPad is now a universal app. This means the app is compatible with the all devices, including those with the latest version of iOS 7 released in the Fall of 2013.

Duct Fitting Database (DFDB) for the iPhone, iPod touch, and iPad allows you to perform pressure loss calculations for all 235 ASHRAE duct fittings in both I-P and SI units. Use this mobile app in the field for quick duct pressure loss calculations. The inputs can be adjusted by touch, and installation is automatic. Purchase this product from iTunes for $9.99 Learn More

The Standards:


ASHRAE Duct Fitting Database CD Selected Features 

Duct Fittings Dashboard
View all fitting input variables (dimensions, flow rate, etc.), fitting drawing,
and all output in one screen.
enlarge image

 Air Properties


Air Properties allows you to adjust air properties for any temperature,
relative humidity, or altitude condition.

Loss Coefficient Table


View the table being used to calculate the fitting’s loss coefficient.