# Pipe Flow Gas Pipe Diameter Calculator App

## Calculate Gas Pipe Diameter

The Pipe Flow Gas Pipe Diameter App calculates the minimum size of pipe diameter that allows a given gas flow rate within a specified pressure drop. Friction losses are calculated using specialist compressible isothermal flow equations (including the General Fundamental Flow equation, Complete Isothermal Flow equation, AGA Flow equation, Weymouth Flow equation, Panhandle A Flow equation, Panhandle B Flow equation, and the IGT Flow equation). The pressure loss in the pipe is affected by items such as the internal roughness of the pipe material, internal pipe diameter size, pipe length, gas flow rate, pressure at the start of the pipe, and gas density at the entry condition.

Users can select items from from the pipe database, fitting database, and fluid database, and this data can then be used in the calculation.

## Gas Pipe Diameter Calculation Results

Tapping "Calculate Pipe Diameter" calculates the minimum size pipe diameter for the given flow rate and allowed pressure loss in the pipe. The individual pressure drops for each item (friction losses, fitting losses for valves & bends) are displayed on the results screen..
Gas Pipe Diameter Calculation Screen
Gas Pipe Diameter Results Screen

## Share Calculations

Calculations can easily be saved to your device or shared with other users of Pipe Flow Gas Pipe Diameter. The App can also generate professional PDF / Excel Reports that can be sent via email and viewed on any device.
Gas Pipe Diameter Report Screen
Gas Pipe Diameter Reports Options Screen

## Choose Isothermal Gas Flow Equation & Compressibility Model

Users can select which compressible isothermal equation is used in the gas calculations:

• General Fundamental Isothermal Flow
• Complete Isothermal Flow
• AGA Isothermal Flow
• Weymouth Isothermal Flow
• Panhandle A Isothermal Flow
• Pandandle B Isothermal Flow
• IGT Isothermal Flow
The calculation engine deafult setting uses the Ideal Gas Law to calculate gas density at the specified pressure conditions, however if required, a custom compressibility factor or use of the CNGA compressibility factor can be used.

The software uses a standard atmospheric pressure of 1.01325 bar, however this can be modified by the user as required.

A range of standard volume units for gas flow rate are available within the software. The user can select their required reference condition from one of the following standard conditions:

• 0℃, 100.000 kPa.a
• 0℃, 101.325 kPa.a
• 15℃, 101.325 kPa.a
• 20℃, 101.325 kPa.a
• 25℃, 101.225 kPa.a
• 60℉, 14.696 psi.a
• 68℉, 14.696 psi.a
Gas Options Screen

Download Pipe Flow Gas Pipe Diameter or scan the QR code using the camera on your device.

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Pipe Flow Software: Piping design, Pressure drop calculator, Flow rate calculator, Pump head calculations, Pump selection software.  Copyright © Pipe Flow Software 1997-2024