Katmar Software

AioFlo 2.11

Pipe Sizing and Flow Calculation Software

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Pipe sizing, pressure drop and fluid flow rate calculations

AioFlo (pronounced aye-oh-flow) is a Windows application for pipe sizing (diameter calculation), flow rate and pressure drop calculations for liquids and gases in single phase flow. If you need a fast, flexible and accurate piping hydraulics calculator, download the free fully functional trial version to test it yourself.

The AioFlo hydraulic calculator will determine any one of pipe diameter, fluid flow rate or pressure drop when the other two are known. It performs liquid and isothermal gas flow hydraulic calculations. Preliminary calculations based on velocity rather than pressure drop are also possible. Resistance coefficients for a wide range of pipe fittings are built in.

Testing the AioFlo pipe fluid flow calculator is risk free. Download and test the free, but fully functional, trial version before you make the decision to buy. After your purchase you are covered by our 30 day money back guarantee. No questions asked. And if AioFlo is upgraded tomorrow you get that free too. In fact all upgrades are free for 12 months after purchase. No risks, just great software.

Detailed Program Description

AioFlo (pronounced aye-oh-flow) is a Windows software application (See here for Mac support) that solves pipe sizing (diameter calculation), pressure drop and fluid flow rate hydraulic problems for single phase flow in single pipes. It is based on the Darcy-Weisbach pipe sizing formula for liquid flow, and the integrated version for isothermal gas flow.

Brief descriptions of the main functions follow below, with links to more detailed descriptions and screenshots.

• It is extremely flexible in that it can calculate any one of pipe diameter, fluid flow rate or pressure drop when given the other two. AioFlo can be used for incompressible and compressible (isothermal) Newtonian single phase fluids.
  
  
• Fluid flows can be given in mass or volumetric terms and volumetric gas flows can be at standard conditions.
  
  
• Viscosities can be specified in dynamic or kinematic units.
  
  
• Density and viscosity data is built in for water, steam, air and 22 common gases.
  
  
• The accuracy of AioFlo has been validated by extensive in-house testing and by thousands of engineers applying it to real-world problems. The examples pages show the results from AioFlo compared with worked examples from well known and respected references.
  
  
• Units handling is unparalleled, allowing the units for any individual property to be set independently, or in predefined sets (US Customary, SI and Metric) and user-defined sets of mixed units.
  
  
• Use of the Churchill friction factor equation allows seamless coverage for fluid flow rate and pressure drop calculations in the laminar, critical, transition and fully turbulent flow regimes. Pipe friction factors can be reported as Fanning, Moody, Darcy-Weisbach or Stanton friction factors to suit any industry convention.
  
  
• Pipe fitting resistance coefficients (K-values) based on the Darby 3-K Method are included for a wide variety of generic pipe fittings. This allows accurate pressure drops to be calculated for pipe fittings, taking into account the fitting size (pipe diameter) and the Reynolds Number. Cv values for control valves can be included. Dimensions of orifice plates can be specified to determine the permanent pressure drops.
  
  
• Pressure drops for changes in pipe size can be calculated for sudden expansions and contractions, conical tapered reducers and standard pipe reducers using the Hooper Method for the resistance coefficients (K-values).
  
  
• Pipe diameters are included for Schedules 10S, 40 and 80 for pipes from 1/2 inch (15 mm) to 24 inch (600 mm), but any other pipe inside diameter can be entered manually.
  
  
• Differences between the pipe start and end elevations are taken into account in determining the overall pressure drop. Fluid flow rate or pipe diameter can be calculated for situations where gravity is the only driving force.
  
  
• Pipe roughness data is included for a wide range of pipe materials and conditions to enable pipe friction factors to be calculated in the turbulent flow regime. Friction factors in the laminar flow regime are independent of pipe roughness.
  
  
• Calculated results for liquid pressure drop can be transferred to the total dynamic head calculator for pump and drive sizing.
  
  
• Preliminary pipe sizing (diameter calculation) can be done before sufficient data is available to perform detailed hydraulic calculations for pressure drop and fluid flow rate by basing calculations on the fluid velocity rather than the pressure drop.
  
  
• All calculator windows can be resized to suit monitor size and resolution
  
  
• The Uconeer professional unit conversion program and the WASP IAPWS IF-97 based steam tables are now included in AioFlo.
  
  
• Neat, single page hydraulic calculation reports can be printed.
  
  
• Small download size - only 5.4 Mb. Totally self-contained software with no dependence on any frameworks, run-time libraries or DLLs.
  
  
• Full install and uninstall utilities included.
  
  

AioFlo Development History