Learning hub
Tutorials, reference material, and free tools for fire protection engineers
working with hydraulic calculations.
Principles of hydraulic calculations
Core concepts for fire sprinkler and water mist system design
Sprinkler K-Factor Formula for Fire Protection Hydraulic Calculations
The sprinkler K-factor formula shows how much water flows through a sprinkler or water mist nozzle...
How to hydraulic calculate a fire sprinkler system
This article, 'How to calculate a fire sprinkler system' for a simple tree system with three heads a...
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Fire sprinkler hydraulic calculations and design density
One of the most important concepts in fire sprinkler design is the principle of design density, yet ...
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Hazen-Williams equation for use in fire sprinkler systems
The Hazen-Williams equation is empirical and has long been used to calculate the friction loss in pi...
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The Importance of Reynolds Number in Fluid Mechanics: A Closer Look at the Equation
Fluid mechanics is a branch of physics that deals with studying fluids and their behaviour under dif...
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Water Velocity and limits for different design authorities
Certain fire sprinkler design authorities and standards, including EN 12845, specify limits on the p...
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Free tools — no login required
Free K-Factor Calculator | Fire Sprinkler & Water Mist
This online k-factor calculator can find the flow, pressure or k-factor for a sprinkler head or a wa...
Read MorePipe Velocity Calculator - Online Calculators & Tools
Looking to calculate the velocity in a pipe or determine the diameter of a pipe then this Pipe Veloc...
Read MoreReference & downloads
Useful documents, data tables, and lookups