# Pipe Flow Gas Pipe Diameter — Find Size, Friction Loss Calc > Gas pipe diameter calculator for engineers using multiple flow equations. (iPhone/iPad app by Pipe Flow Software.) - Source: https://appshunter.io/ios/app/pipe-flow-gas-pipe-diameter/id1582795941 (this page in markdown: same URL + `.md`) - Developer: [Pipe Flow Software](https://appshunter.io/developer/1193064957) - Category: Utilities, Productivity - Price: Free with in-app purchases - Rating: 4.80/5 from 4 App Store ratings - Age rating: 4+ - Requires: iOS 11.0 · 67 MB - Languages: American English - Released: 2022-03-18 - Data updated: 2026-09-03 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/pipe-flow-gas-pipe-diameter/id1582795941/reviews.md ## What is Pipe Flow Gas Pipe Diameter? Pipe Flow Gas Pipe Diameter is a pipe sizing calculator app from Pipe Flow Software that calculates the minimum internal pipe diameter needed for a given flow rate at a specified maximum pressure loss. Flow rate and pressure loss is calculated using the General Fundamental Flow, Complete Isothermal Flow, AGA, IGT, Panhandle A, Panhandle B and Weymouth equations. Changes in gas density are handled automatically using the Ideal Gas Law together with either a calculated CNGA compressibility factor or a specified a custom compressibility. The atmospheric pressure and standard volume conditions can also be defined as required. Pipe Flow Software applications are used by engineers in over 100 countries worldwide. The Gas Pipe Diameter App has an intuitive user interface that allows for easy entry of the input data, including changes in elevation, and selection of valves & fittings. Comprehensive results include Reynolds number, friction factor, friction losses, fitting losses, gas velocities and more. Each result is clearly displayed using expandable sections that reveal further information as needed. Users can select pipe materials, pipe diameters, pipe fittings (k factors) and gases from the integrated databases, and these can also be extended with user specific data for custom pipe materials, diameters, fittings, and gases. The App can operate in Imperial or Metric units and each individual field can be further customised to use a specific unit. Results values can be displayed to a specified number of decimal places. Pipe Flow Gas Pipe Diameter calculation results have been verified against multiple cases of published data from well known sources. The results of these calculations are included in the Compressible Results Verification PDF document which can be accessed from within the App. Engineers can easily perform their gas pipe sizing calculations in the office or on site. Professional Excel and PDF reports can easily be shared with others. Results can also be saved to the library within the App. The Pipe Flow Gas Pipe Diameter software has unrivalled functions and features: - Gas properties database for air, nitrogen, natural gas, and other compressible fluids. - Pipe material database for various Steel, Aluminium, Copper, HDPE, and other pipes. - Fitting database for standard valves and bends, with associated K factor values. - User definable custom materials, fluids and fittings. - Professional Excel and PDF reports showing calculation results. - Results verification against published data to provide confidence in the calculation results. - Configurable post decimal places for display on screen and in reports. - Automatic conversion between a wide range of units. - Compatibility with Pipe Flow Wizard files for iOS, macOS and Windows. - Calculation results based on the same reliable calculation engine that is used by Pipe Flow Software's premier Pipe Flow Expert software, which is trusted by users in over 100 countries worldwide. - High quality, reliable software, and unrivalled customer support. Pipe Flow Gas Pipe Diameter is offered as a free trial download and can be purchased for a one-time fee within the App. Terms of Use: https://www.pipeflow.com/pipe-flow-mobile-software/pipe-flow-mobile-software-license-terms ## Key features - Calculates minimum internal pipe diameter - Supports multiple flow equations (AGA, Weymouth, etc.) - Handles gas density changes with Ideal Gas Law - Includes databases for gases, pipe materials, and fittings - User-definable custom data - Imperial and Metric unit support - Generates Excel and PDF reports ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Pipe Flow Gas Pipe Diameter | $4.99 | one-time | ## Frequently asked questions about Pipe Flow Gas Pipe Diameter ### What is Pipe Flow Gas Pipe Diameter used for? Pipe Flow Gas Pipe Diameter is a utility app designed to calculate the minimum internal pipe diameter required for a specific gas flow rate while adhering to a maximum allowable pressure loss. It assists engineers in designing and analyzing gas piping systems. ### What calculation equations does Pipe Flow Gas Pipe Diameter use? The app utilizes several established equations for flow rate and pressure loss calculations, including the General Fundamental Flow, Complete Isothermal Flow, AGA, IGT, Panhandle A, Panhandle B, and Weymouth equations. ### Can Pipe Flow Gas Pipe Diameter handle different gases? Yes, it includes a gas properties database for common compressible fluids like air, nitrogen, and natural gas. It also allows for user-defined custom fluids, automatically handling changes in gas density using the Ideal Gas Law. ### Does Pipe Flow Gas Pipe Diameter support custom pipe materials and fittings? Absolutely. The app features integrated databases for various pipe materials (e.g., Steel, Copper, HDPE) and fittings (with K factors). Users can also extend these databases with their own custom pipe materials, diameters, fittings, and gases. ### Can I change the units in Pipe Flow Gas Pipe Diameter? Yes, the app operates in both Imperial and Metric units. Furthermore, each individual field can be customized to use a specific unit, and results can be displayed to a user-defined number of decimal places. ### How does Pipe Flow Gas Pipe Diameter ensure accuracy? Calculation results have been verified against multiple cases of published data from reputable sources. A Compressible Results Verification PDF document, accessible within the app, details these verifications, providing confidence in the calculations. ### Can I share my calculation results from Pipe Flow Gas Pipe Diameter? Yes, professional Excel and PDF reports can be easily generated and shared with others. Results can also be saved to a library within the app for future reference. ### Is Pipe Flow Gas Pipe Diameter free to use? Yes, Pipe Flow Gas Pipe Diameter is available for free. It is supported by its developer, Daxesoft Ltd, and does not appear to contain advertisements or in-app purchases based on the provided data. ## Version history (last 2 releases) ### 2.1.5 — 2022-03-18 This release includes updated results verification PDF documentation. ### 2.1.4 — 2022-03-03 No release notes. ## Apps similar to Pipe Flow Gas Pipe Diameter | App | Rating | Price | Category | | --- | --- | --- | --- | | [A-note](https://appshunter.io/ios/app/a-note/id1454807560) | — | Free | Utilities | | [龙嘉SCM供应商](https://appshunter.io/ios/app/scm/id1459545200) | — | Free | Utilities | | [Pusher for Firebase](https://appshunter.io/ios/app/pusher-for-firebase/id1450720020) | 5.0 (1) | $0.99 | Utilities | | [Livly Hub](https://appshunter.io/ios/app/livly-hub/id1464225200) | 4.7 (13) | Free | Utilities | | [TCI Bitacora](https://appshunter.io/ios/app/tci-bitacora/id1464209780) | — | Free | Utilities | | [Miitems](https://appshunter.io/ios/app/miitems/id1464179200) | — | Free | Utilities | ## More apps by Pipe Flow Software - [Site Report Pro- Punchlist App](https://appshunter.io/ios/app/site-report-pro-punchlist-app/id1246734455) - [Site Report Pro+ Punchlist App](https://appshunter.io/ios/app/site-report-pro-plus-punchlist-app/id1300676807) - [Pipe Flow Wizard - Calculator](https://appshunter.io/ios/app/pipe-flow-wizard-calculator/id1346589732) - [Pipe Flow GasRef - Gas Density](https://appshunter.io/ios/app/pipe-flow-gasref-gas-density/id1494044407) - [Pipe Flow Liquid Pressure Drop](https://appshunter.io/ios/app/pipe-flow-liquid-pressure-drop/id1582478584) - [Pipe Flow Gas Pressure Drop](https://appshunter.io/ios/app/pipe-flow-gas-pressure-drop/id1582666236) All apps by Pipe Flow Software: https://appshunter.io/developer/1193064957 ## Related topics [pipe flow gas pipe diameter](https://appshunter.io/ios/topics/pipe-flow-gas-pipe-diameter) · [pipe diameter calculators](https://appshunter.io/ios/topics/pipe-diameter-calculators) · [pipe flow gas flow rate](https://appshunter.io/ios/topics/pipe-flow-gas-flow-rate) · [gas flow](https://appshunter.io/ios/topics/gas-flow) · [pipe flow gas pipe length](https://appshunter.io/ios/topics/pipe-flow-gas-pipe-length) · [pipe flow gas pressure drop](https://appshunter.io/ios/topics/pipe-flow-gas-pressure-drop) · [compressible gas flow calc](https://appshunter.io/ios/topics/compressible-gas-flow-calc) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-03.*