Hydrant Flow Test Calculator
Compute hydrant flow test data
Free · Designed for iPad. Not verified for macOS.
Hydrant flow test, water supply, friction loss, and PDF report calculator with all the features needed in Fire Protection.
Hydrant Flow Test Calculator is a field-friendly calculation and reporting tool for fire protection professionals, engineers, inspectors, contractors, and AHJs who need to evaluate and document hydrant flow test results.
The app helps calculate hydrant flow from field readings, compare available water supply against system demand, estimate downstream friction loss, and export professional PDF reports.
Key features:
• Calculate hydrant flow using static pressure, residual pressure, pitot pressure, outlet diameter, and discharge coefficients
• Calculate total test flow and flow at a target residual pressure
• Compare available supply against system or pump demand
• Review demand pass/fail results with available pressure and safety cushion
• View Supply vs Demand graph with demand point legend
• Save completed test records to History
• Add project information including associate, project number, project location, test hydrant tag, and flow hydrant tag
• Optionally capture test hydrant and flow hydrant coordinates
• Attach an image to a saved test record
• Export PDF reports with project details, test summary, demand results, graph, location details, friction loss results, and attachment
• Estimate friction loss using pipe product, nominal pipe size, inside diameter, pipe length, C-factor, elevation, minor loss, and device/backflow loss
• Supports US and SI flow display
The Friction Loss tool includes pipe product and nominal pipe size selection with automatic inside diameter lookup. Elevation guidance helps users enter positive values for uphill and negative values for downhill conditions.
Hydrant Flow Test Calculator is designed to make field calculations faster, improve documentation consistency, and help organize hydrant flow test information in one place.
This app is intended as a calculation and documentation aid. Users are responsible for verifying all inputs, assumptions, calculations, and results according to applicable codes, standards, project requirements, and professional judgment.
This update includes improved PDF reports, enhanced Friction Loss calculations, and better field documentation.
New and improved:
- Added Test Hydrant Number/Tag and Flow Hydrant Number/Tag fields.
- Updated Friction Loss pipe selection with product-based nominal pipe size lookup.
- Added clearer elevation guidance for uphill and downhill conditions.
- Added Supply vs Demand graph legends.
- Improved PDF reports with repeated watermark, bold footer, attachment label, hydrant location labels, and better file naming.
- Removed unnecessary default zero values from user-entered fields.
- General UI and workflow improvements.
The developer, Saleel Anthrathodiyil, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Saleel Anthrathodiyil
- Size
- 39.5 MB
- Category
- Productivity
- Compatibility
Requires iOS 15.1 or later.
- iPhone
Requires iOS 15.1 or later. - iPad
Requires iPadOS 15.1 or later. - iPod touch
Requires iOS 15.1 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 Saleel Anthrathodiyil