Hydraulic Calculation Software
for fire sprinkler & water mist systems

Hydraulic calculation software for fire sprinkler and water mist systems

FHC Hydraulic Calculation Software is used by fire protection engineers throughout the world to help them design the most demanding fire protection systems to international standards, including EN 12845, BS 9251, FM Global, NFPA 13, NFPA 750 and LPCB / BRE regulations.

With FHC you can build complex hydraulic models easily with a set of drawing tools which allow you to draw the system on the screen. You can instantly see the pipe network updating, which minimises input errors and allows you to concentrate on optimising your hydraulic model, saving design time and installation costs with smaller pipe sizes or system pumps

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Fire sprinkler valve sets

FHC's fast calculation algorithm will give you the results you require in seconds allowing you to concentrate on optimising the system for the most economic design. You can choose to use Hazen-Williams or Darcy-Weisbach pressure loss equations to calculate the pipe friction loss. This makes FHC suitable for fire sprinkler system & high and low-pressure water mist systems and other demanding systems.

FHC can calculate the source pressure and flow required for the system or you can specify a fire pump curve, constant pressure pump or a city water supply and FHC will balance the system to the water supply.


FHC will calculate any type of hydraulic model including the most complex fire sprinkler installations with roof and racks, water mist systems, water spray systems, hydrants or a water cannon installation. In fact FHC can calculate almost any water-based fire protection system. FHC is very flexible and any type of pipework network can be built from a simple tree, looped to a multiple looped system or any combination.

As you create the pipe network in FHC and connect the pipes together, FHC will automatically find any tee's and elbows and will look up the equivalent length in its extensive pipe and fitting database. This will save you a considerable amount of time and is less prone to input errors. Also if you change the pipework configuration FHC will make the necessary fitting adjustments automatically for you to ensure your hydraulic model is up to date.

Fire sprinkler water supply with two pump sets

FHC – for all types of water base fire protection systems

Fire Sprinklers

FHC is a tried and test hydraulic calculation & analysis software for fire sprinkler systems and has helped hundreds of companies with their design projects from complex roof & rack systems for some of the largest logistics facilities to car manufactures plants whatever the project size and complexity FHC will be able to help.

FHC is fast, accurate and dependable, it’s easy to learn and can calculate any type of pipe network from a tree to complex grids. It’s recognised through the world as the and is compliant with the leading international design standards including NFPA, FM Global, EN 12845 and many others.

Water mist systems

The FHC software has a long association with water mists system and is used by the world leading water mist manufacturers for their calculation from a high-pressure system for marine and industrial applications to low-pressure systems for hotels and residential accommodation.

FHC can be used for low, intermediate and high-pressure systems as defined in NFPA 750 and you can easily switch between the Hazen-Williams and the Darcy-Weisbach pressure loss formula.

We also support many other water mist design standards including NFPA 750, BS 8458, BS 8489 & Vds 3188

BS 9251 - Residential

Canute is at the forefront of the domestic and residential fire sprinkler development over the last decade and has help to shape both British & European design standards.

We strongly believe that residential sprinklers will help in saving life, property and the environment. With our expert knowledge in the field of technology, it’s not surprising that FHC is able to undertake the hydraulic calculation required and you can also have our expertise to help you through.

FHC can be used with BS 9251, Inst 900, EN16925 and many other design standards.    

Designed for international use & trusted by thousands throughout the world

Used through the world  
FHC users
Trusted by thousands
Design Authority’s
Designed for international use

Specification of FHC


Simple on-screen data entry
Automatic pipe node numbering
Automatic fitting equivalent lengths
Fast calculation
Automatic location of MRA

Design Tools

Add, break, delete commands
Copy pipes command
Auto node numbering
Selective & global changes
Multilevel undo command


Fast calculations
Select individual or group of heads
Set max & min pressure & velocity warnings
Auto pipe sizing


Report for submitting to AHJ
Head & pipe summary report
Export data to Excel
Export to AutoCAD


FHC Is compatible with the following Microsoft operating systems Windows 10 (32 and 64-bit editions), Windows 8 & 8.1 and Windows 7


All units are metric:
Length - m
Pressure- Bar
Flow - L/min

Pipe networks

FHC can be used for a tree, looped and gridded systems or any combination.

Water supply

Calculate the source pressure and flow or balance to a water supply curve such as a city water supply, pump curve or constant pressure pump for water mist systems. 

Why not give FHC a try today
download a trial version!

Technical Specification

FHC Specification & Overview

FHC is a full hydraulic calculation program for use with fire sprinkler systems and other water based fixed fire protection systems to International standards. It has been used successfully with fire sprinkler systems, water spray, ESFR, deluge, drencher, hose reel, hydrant, foam sprinklers, ring mains, foam monitors and water mist systems.

  • Complies with international standards such as NFPA, FM and LPC
  • Any type of pipe network can be modelled such as trees, loops, grids or any combination
  • Models fire sprinkler systems, deluge, ring mains, hydrant and much more...
  • Multiple pipe types
  • Specify a global design density or set each head individual
  • Automatically find the most remote head or the four MRH in the case of LPC and EN 12845.
  • Automatically includes tee and elbows equivalent lengths
  • Automatic pipe sizing based on maximum pressure drop or pipe velocity (tree systems only).
  • Automatic pipe node numbering.
  • Calculate source pressure and flow or balance to a water supply curve such as a fire pump or city supply.
  • FHC can use Hazen-Williams or Darcy-Weisbach pressure loss equations
  • Isometric, plan and elevation schematic views of the pipe network
  • Easy to read and inclusive reports which you can preview and output to PDF.
Design Authorities
Pipe Library
Design Authorities

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