HVAC Pipe Sizer - Gas High

HVAC Pipe Sizer - Gas High

by Carmel Software Corporation

3 ratings
4 reviews
$4.99

Details

  • Released
  • Updated
  • December 4, 2009
  • December 3, 2025

Features

HVAC Pipe Sizer - Gas High screenshot #1 for iPhone
HVAC Pipe Sizer - Gas High screenshot #2 for iPhone
HVAC Pipe Sizer - Gas High screenshot #3 for iPhone
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HVAC Pipe Sizer - Gas High screenshot #9 for iPhone
HVAC Pipe Sizer - Gas High screenshot #10 for iPhone
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About

This utility app helps engineers quickly size high-pressure gas piping systems. Input flow, pressure, and pipe properties to calculate diameters, velocity, and equivalent length. Supports English and metric units with built-in tables for various pipe materials.

High-pressure gas pipe sizing
Input flow, pressure, and pipe parameters
Calculate exact/nominal diameters
Determine velocity and equivalent length
Supports English and metric units
Includes pipe fitting tables
Universal app for iPhone and iPad
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What's New in HVAC Pipe Sizer

4.77

December 3, 2025

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.

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User reviews

Good app

I've been looking for an app like this for a while. Finally
found it and it works great for doing quick take-offs in the office.
Good work.

I like it a lot

Carmel has really done a nice job designing this and other apps. So simple yet contains lots of good functionality to truly make it useful in the field and office.

I'm always a little skeptical of these engineering apps because you never know how well they really work on these little iPhone screens, but sometimes simple is better.

So far, the results appear to be quite accurate and even the fitting equivalent lengths for the different pipe materials look correct.

I use this app a couple times a week so it's more than paid for itself.
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Impressive

This is the only high-pressure gas piping software app I've found on the Appstore. I'm in the field a lot and this is perfect for doing quick rule-of-thumb calcs on some of the process piping that I often run across. I like that I do not have to input a value into the box, just slide the control. Great effort!
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Easy to use, but I wish it had a little more

This app is very easy to use. I simply slide the input controls, and it updates the results. For example, I can slide the gas flow control to quickly change the cubic ft/hr of gas flow to see how it affects the internal diameter and downward pressure. I can also slide the upstream pressure input slider to see how it affects results.

I wish it allowed you to store info for each "pipe run" so I could build a simple pipe system to see the entire pressure loss, etc. Also, I wish you could email or upload the results somewhere so I could easily plug them into my spreadsheet. Maybe the next version.

Great work, though.
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Developer apps

FAQ

What is HVAC Pipe Sizer - Gas High used for?

HVAC Pipe Sizer - Gas High is a utility application designed to quickly size simple high-pressure gas piping systems. It allows users to input various gas and piping properties to determine key parameters like pipe diameter and velocity.

What are the key inputs for HVAC Pipe Sizer - Gas High?

You can specify total gas flow, upstream pressure, and one of either downstream pressure, pipe internal diameter, or gas velocity. Additional parameters like gas type, pipe material, and length can also be entered.

What outputs does HVAC Pipe Sizer - Gas High provide?

The application provides the exact and nominal pipe diameters, calculated gas velocity, and the total pipe equivalent length. It also offers an option to derive gas flow and other properties if analyzing an existing system.

Does HVAC Pipe Sizer - Gas High support different units?

Yes, HVAC Pipe Sizer - Gas High allows you to choose to display values in either English or metric units, making it versatile for different regional standards.

What kind of pipe fitting data is included?

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

Is HVAC Pipe Sizer - Gas High available on multiple devices?

Yes, HVAC Pipe Sizer - Gas High is a universal app that works on both the iPhone and iPad, adjusting its screen size accordingly for an optimal user experience on each device.

How often is HVAC Pipe Sizer - Gas High updated?

The latest version of HVAC Pipe Sizer - Gas High is 4.77, which was last updated on December 3, 2025. This indicates a commitment to maintaining and improving the application.

What is the price of HVAC Pipe Sizer - Gas High?

HVAC Pipe Sizer - Gas High is a paid application priced at $4.99. It is a one-time purchase with no in-app purchases or subscriptions required.