Pipe Flow Wizard 2.1.3 — Pipe Flow Rate & Pressure Drop Calculator

Pipe Flow Wizard is a focused pipe flow calculation tool designed for engineers who need fast, accurate, and documentable answers for a single pipe. Where full network modeling software can be overkill for day-to-day sizing tasks, Pipe Flow Wizard delivers results in seconds — whether you need to find pressure drop, calculate flow rate, size a pipe diameter, or determine the maximum pipe length for a given set of conditions.

Version 2.1.3 is available on Windows, macOS, and iOS, making it one of the very few professional engineering tools that works identically on a desktop workstation and an iPhone or iPad in the field. Results are backed by a published verification document, and both PDF and Excel reports can be generated with a single click. This article covers every aspect of the software: the four calculation modes, fluid and pipe databases, platform differences, licensing, and a full FAQ.

Software Specifications

Software Name	Pipe Flow Wizard
Current Version	2.1.3
Developer	Pipe Flow Software Ltd (United Kingdom)
Supported Platforms	Windows 10/11, macOS, iOS (iPhone & iPad)
Calculation Scope	Single pipe
Fluid Support	Liquids and compressible gases
Report Output	PDF and Excel
License Type	Annual (12-month)
Interface Language	English

The Four Calculation Modes

Pipe Flow Wizard is built around a single principle: given any three of the four core pipe flow variables, calculate the fourth. Each mode solves a specific engineering problem that comes up constantly in day-to-day practice.

1. Find Pressure Drop

Input the flow rate, pipe diameter, and pipe length — the software calculates the pressure drop across that pipe section, including losses through any fittings and valves added to the calculation. This is the most common daily use case: confirming that the available pressure at the start of a line is sufficient to deliver fluid to the endpoint at the required pressure.

2. Find Flow Rate

Input the available pressure drop, pipe diameter, and pipe length — the software calculates the maximum achievable flow rate. This mode is used to assess the flow capacity of an existing pipeline or to check whether a proposed pipe size can deliver the required throughput within an allowable pressure budget.

3. Find Pipe Diameter

Input the required flow rate, pipe length, and maximum allowable pressure drop — the software calculates the minimum pipe diameter that satisfies all three constraints and recommends the appropriate nominal pipe size from the selected pipe standard. This is the core sizing mode used during initial system design.

4. Find Pipe Length

Input the flow rate, pipe diameter, and allowable pressure drop — the software calculates the maximum pipe length over which those conditions can be maintained. This mode is used in feasibility assessments for long-distance transfer lines and for estimating pumping station spacing.

“What If?” Analysis: Because each calculation runs instantly, Pipe Flow Wizard is ideal for iterating through design alternatives. Change the pipe diameter and immediately see the impact on pressure drop. Adjust the flow rate and see how the required pipe size changes. No spreadsheets, no manual recalculation.

Key Features

• Liquid and Gas Support: Calculations work for any liquid in the fluid database and for compressible gases, with automatic adjustment for gas density variation along the pipe length.
• Fittings and Valves: Add elbows, tees, reducers, gate valves, globe valves, check valves, and other fittings from the built-in library to include minor losses in the total pressure drop calculation.
• Elevation Difference: Define start and end elevations to account for static head in the pressure calculation — essential for systems with significant height changes between supply and delivery points.
• Fluid Database: Over 400 fluid data points covering water at various temperatures, industrial oils, acids, solvents, hydrocarbons, and a full range of gases. Custom fluid properties can also be entered manually.
• Pipe Database: 75+ pipe materials and schedules with over 1,000 rows of pipe size data, covering Steel ANSI (Sch 10 through XXS), Stainless Steel, Copper, HDPE, PVC, Aluminum, Cast Iron, and more.
• Gas Properties Calculator: A built-in calculator determines real gas density, compressibility factor (Z), specific heat ratio, and other thermodynamic properties at the specified system temperature and pressure.
• PDF and Excel Reports: One-click generation of a professional report documenting all input data and calculated results — suitable for client deliverables, design records, and project documentation.
• Metric and Imperial Units: Full support for both unit systems. Units can be changed at any point without re-entering data.
• Results Verification: Calculation results are independently verified against published reference data, with a verification document available for download.

Calculation Results — What the Software Reports

After each calculation, Pipe Flow Wizard displays a comprehensive results screen showing all input values at the top, followed by:

• The primary calculated result (pressure drop, flow rate, diameter, or length)
• Reynolds Number and flow regime (laminar or turbulent)
• Darcy Friction Factor
• Fluid velocity in the pipe
• Pressure loss through individual fittings and valves
• Total pressure drop (pipe friction + fittings)
• Fluid properties at the specified temperature
• For gas calculations: entry and exit density, Mach number, and compressibility factor

Multi-Platform Support

Pipe Flow Wizard is one of the few professional engineering tools available natively across three platforms with a consistent interface and identical calculation engine on each.

Windows

The full-featured desktop application for Windows 10 and Windows 11 (64-bit). Licensed via an offline activation code — no internet connection required after activation. Suitable for office workstations and engineering laptops.

macOS

A native macOS application with the same full feature set as the Windows version. Engineers working on MacBook or iMac can use Pipe Flow Wizard without virtualization or compatibility layers.

iOS (iPhone and iPad)

Available on the App Store for iPhone and iPad. The iOS version is built for field use: carry a full pipe flow calculator in your pocket, run calculations on site, and share the PDF report directly from your device via email or messaging. Licensed through In-App Purchase, tied to your Apple ID across all your iOS devices.

Industries and Use Cases

Pipe Flow Wizard is used wherever engineers need quick, reliable single-pipe calculations without launching a full network modeling tool:

• Oil and Gas: Field verification of pipeline pressure drop, quick sizing of well production lines, and checking process pipe adequacy during facility inspections.
• Water and Wastewater: Sizing service connections, checking mains capacity, and rapid assessment of pressure available at delivery points.
• Power Generation: Cooling water pipe sizing, steam line adequacy checks, and condensate return pipe design.
• Pharmaceutical and Food & Beverage: Sanitary line sizing, CIP circuit checks, and utility pipe adequacy verification during plant audits.
• Fire Protection: Preliminary pipe sizing for sprinkler branches and mains before full network analysis.
• HVAC and Building Services: Sizing chilled water, heating hot water, and domestic water supply pipes for individual circuits.
• Mining: Slurry transfer line sizing and compressed air distribution pipe checks.
• Engineering Education: Demonstrating fluid mechanics principles in real pipe flow scenarios, solving textbook problems, and exploring the relationship between pipe variables interactively.

Pipe Flow Wizard vs. Pipe Flow Expert

Feature	Pipe Flow Wizard	Pipe Flow Expert
Calculation scope	Single pipe	Networks up to 1,000 pipes
Platforms	Windows, macOS, iOS	Windows only
Pump modeling	Not included	Full pump curve modeling
Network drawing	Not included	2D and isometric 3D
Report formats	PDF and Excel	PDF
Gas calculations	Yes	Yes (extended)
Best suited for	Quick sizing, field work, education	Full engineering projects
License price	Lower	Higher

Which one do you need? If you are working on a single pipe and need a fast, documented answer, Pipe Flow Wizard is the right tool. If your system involves multiple pipes, pumps, tanks, or a network that must be balanced simultaneously, you need Pipe Flow Expert.

Download and Installation

Windows

1. Download the installer from this page.
2. Run the installer (Administrator access required) and follow the setup wizard.
3. Launch the software — it opens in Trial Mode.
4. Enter your license code on the License screen to activate the full version.

macOS

1. Download the DMG file and open it.
2. Drag the application to your Applications folder.
3. Open the app and enter your license code in License Settings.

iOS

1. Search for Pipe Flow Wizard on the App Store and install it.
2. Purchase the license via In-App Purchase inside the app.
3. The license is linked to your Apple ID and is available on all your iOS devices.

Minimum system requirements (Windows): Windows 10 or 11 (64-bit), 4 GB RAM, 200 MB disk space, 1280×800 display resolution.

Licensing

Pipe Flow Wizard is licensed on an annual (12-month) basis. After purchase, you receive a purchase token that you use to generate a unique license code for your specific device. Activation is offline — no internet connection is needed at the time of activation or during use. After 12 months, the software reverts to Trial Mode and a renewal is required to continue using the full feature set.

Frequently Asked Questions

What calculation method does Pipe Flow Wizard use?

Pipe Flow Wizard uses the Darcy-Weisbach equation for pipe friction pressure loss, with the Colebrook-White equation used to determine the Darcy friction factor. This is the universally accepted method in professional engineering practice and produces accurate results across the full range of Reynolds numbers and pipe roughness values, for both laminar and turbulent flow regimes.

Can Pipe Flow Wizard handle compressible gas flow?

Yes. The software supports compressible gas calculations and automatically accounts for changes in gas density along the pipe length due to pressure variation. The built-in gas properties calculator determines real gas density, compressibility factor, and specific heat ratio at the specified operating conditions. Results include entry and exit gas velocities and Mach number, with a warning if sonic flow conditions are approached.

Can Pipe Flow Wizard calculate flow in a network of pipes?

No. Pipe Flow Wizard is designed for single-pipe calculations only. If you need to analyze a network — multiple pipes, junctions, pumps, and tanks all solved simultaneously — you need Pipe Flow Expert, which handles networks of up to 1,000 pipes.

Can I add custom fluids to the database?

Yes. In addition to the built-in database of over 400 fluid data points, you can enter custom fluid properties (density, dynamic viscosity) manually for any fluid not already in the library. This is useful for process fluids, proprietary blends, or unusual operating conditions not covered by the standard database entries.

Is the trial version time-limited?

The Windows and macOS trial versions have no time limit. You can use them indefinitely to evaluate the software and run calculations. The main restriction in trial mode is that PDF and Excel report generation is limited. For full, unrestricted report output, a license is required.

Are the Windows, macOS, and iOS licenses interchangeable?

No. Each platform has its own separate license. A Windows license activates the Windows application; a macOS license activates the Mac application; and the iOS version is purchased through In-App Purchase on the App Store. If you need the software on more than one platform, you need a license for each.

What does the Excel report include?

The Excel report captures all input values and calculated results in a structured, editable spreadsheet format. Because it is fully editable, you can consolidate results from multiple calculations side by side, incorporate the data into your own project spreadsheets, or use it as a traceable calculation record in a project document register. This is one of the features that sets Pipe Flow Wizard apart from free online calculators.

How does Pipe Flow Wizard differ from free online pipe calculators?

Free online calculators typically cover only one calculation mode, use simplified fluid data with no database, ignore fitting losses, do not support compressible gas, produce no formal report output, and require an internet connection. Pipe Flow Wizard provides all four calculation modes, a comprehensive fluid and pipe database, fittings support, compressible gas calculations, offline operation, and professional PDF and Excel reports — making it suitable for engineering work that requires documented, defensible results.

Can I use Pipe Flow Wizard on Android?

An Android version is not currently available. The mobile version is iOS only (iPhone and iPad). Users who need mobile access on Android can use the Windows version on a laptop or tablet running Windows.

How long does it take to get up and running?

Most users are running their first calculation within a few minutes of installing the software. The interface is straightforward: select a fluid, select a pipe, enter the known values, and the result is displayed immediately. No training or prior experience with the software is required to complete a basic calculation.

Summary

Pipe Flow Wizard 2.1.3 is the go-to tool for engineers who need accurate, fast, and professionally documented single-pipe calculations. Its four calculation modes — find pressure drop, find flow rate, find pipe diameter, and find pipe length — cover the most common pipe sizing scenarios encountered across oil and gas, water utilities, power generation, pharmaceutical, HVAC, and building services work.

The combination of Windows, macOS, and iOS support makes it uniquely flexible: the same calculation engine is available on an office workstation and an iPhone in the field. PDF and Excel report output means results can be shared with clients and included in project documentation immediately. A free trial with no time limit is available on Windows and macOS, so there is no barrier to evaluating the software before committing to a license.

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