The HVAC Pipe Sizer - Liquid (Android Edition) application allows you to quickly size a simple pipe system by inputting a number of piping and liquid properties, including hot and chilled water (hydronic).


You can specify the total fluid flow in GPM (or L/s) and one of either the unit head loss (ft/100ft), pipe internal diameter (inches) or fluid velocity (ft/s). The results include both the exact and nominal pipe diameters and the calculated velocity and total head loss.


You can specify additional parameters such as the type of liquid, various properties of the liquid, the pipe material type, the total length of pipe, quantities for up to 11 different types of pipe fittings, and much more. You can also choose to display values in either english or metric units.




This application includes built-in pipe fitting equivalent length and nominal pipe sizing tables for a wide variety of pipe material types and diameters.


This application uses slider controls that allow you to quickly increment or decrement the input values and immediately observe the calculated results.

If you are analyzing an existing pipe system, there is an option to input the existing pipe internal diameter and unit head loss or fluid velocity to derive the calculated fluid flow and other remaining results.


The HVAC Duct Sizer (Android Edition) application was designed by Carmel Software Corporation, a leader in HVAC design software since 1995. In fact, our software currently powers the analysis capabilities of Autodesk's (makers of AutoCAD) 3D modeling software tools. Also, ASHRAE has hired Carmel to custom develop the mobile apps for their various standards.

Click here to go to the Android Market to download the HVAC Duct Pipe Sizer - Liquid (Android Edition) app.