HVAC Pipe Sizer - Gas High4.77

The "HVAC Pipe Sizer - Gas High" application allows you to quickly size a simple high pressure (> 1.5psi) gas piping system by inputting a number of piping and gas properties.

This is now a universal app that works on both the iPhone and iPad and sizes the screen size accordingly.

You can specify the total gas flow in ft^3/hr (m^3/hr), the upstream pressure (psig or kPa), and one of either downstream pressure (psig or kPa), pipe internal diameter (inches) or gas velocity (ft/s) parameters. The results include both the exact and nominal pipe diameters and the calculated velocity and total pipe equivalent length. If you are analyzing an existing pipe system, there is an option to input the existing pipe internal diameter, the upstream pressure, and one of either downtream pressure or gas velocity parameters to derive the calculated gas flow and other remaining properties.

You can specify additional parameters such as the type of gas, various properties of the gas, 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. You can also manually input exact values.

This app now includes the HVAC Equipment Locator. Click here for details: http://bit.ly/1yTq539

This application was designed by Carmel Software Corporation, a leader in HVAC design software since 1995. In fact, Autodesk (the makers of AutoCAD) acquired our load calculation software and incorporated it into their leading 3D modeling software called Revit.

We also offer the following additional applications for the iPhone/iPad:

1. HVAC Duct Sizer
2. HVAC Pipe Sizer - Gas Low Pressure
3. HVAC Pipe Sizer - Gas High Pressure
4. HVAC Pipe Sizer - Liquid
5. HVAC Pipe Sizer - Steam
6. Steam Tables
7. Psychrometric Plus
8. Psychrometric LT
9. HVAC Pipe Sizer Plus
10. HVAC Pipe Sizer Gas Plus
11. HVAC Toolkit
12. HVAC Toolkit Ultimate
13. HVAC Residential Load Calcs
14. HVAC Load Plus
15. HVAC Equipment Locator
16. ASHRAE Duct Fitting Database
17. ASHRAE 62.1 Ventilation Load Calcs
18. HVAC Psych HD
19. HVAC ResLoad-J
20. HVAC Residential Load Calcs HD

Version History 1. Added a Share button to the iPhone and iPad versions of the app, so you can now text, email, and download reports.
2. Updated help.
3. Optimized for iOS 26. 4.77 12/03/2025 1. Optimized for iOS 16 and iPhone 14
2. Updated help 4.5 03/10/2023 Minor UI update 4.2 11/12/2021 1. Optimized for iOS 15 and iPhone 13
2. Updated help 4.1 11/04/2021 Updated Google Analytics and Crashlytics 3.8 08/03/2020 Updated the app launch screen per new Apple iOS guidelines. 3.7 06/25/2020 1. Fixed issue with not displaying properly in iOS 13 "dark mode" 3.6 11/06/2019 1. Updated to Super Retina display (iPhone X and above)
2. Optimized for iOS 13
3. Updated help 3.5 10/11/2019 1. Optimized for iOS 11
2. Optimized for all iPhone and iPad screen sizes including the iPhone X
3. Updated UI
4. Updated help 3.0 03/09/2018 1. Includes HVAC Equipment Locator module that allows you to keep track of all of your equipment and store in the cloud.

2. Updated icons and help 2.0 06/29/2015 1. Fixed issues with picker control being cutoff in landscape mode of iPad (iOS 8, only)
2. Fixed issue with keyboard popup covering inputs
3. Updated some captions and titles
4. Updated startup images 1.9 10/14/2014 1. Optimized for iOS 8
2. Fixed numerical formatting bugs due to iOS 8 1.8 10/04/2014 1. No a universal app and works on both iPhone and iPad

2. Added email capabilities

3. Optimized for iOS 7

4. Updated icons

5. Updated help 1.7 05/13/2014 1. Now works with iPod touch 1st generation

2. Includes a setting to toggle the digit group separator (aka - comma separator - "1,000,000"). This is most appropriate for international users who do not use comma digit separators.

3. The user-interface has been slightly updated.

4. The user can now increase/decrease input parameters by a specific step value as they move the slider control indicator. 1.3 04/13/2010 1.0 12/03/2009