The Canute FHC hydraulic calculation software can be used to calculate water mist systems for low,
intermediate and high-pressure systems as defined by NFPA 750. Careful consideration needs to be given on which
option you use in FHC for your calculation, and this will depend on the system pressure, water velocity and if the system
has any additives.

Before you can use FHC fully you need to enter a registration code we would recommend that you do this as
soon as possible after installing the software. If you do not register FHC, you will only be able to use it for up
to 7 days or a maximum of 30 times and you cannot print out any reports.

The FHC program can use a water supply curve when calculating. This can be a pump, city or town-main, or a fixed pressure device such as a pressurized cylinder or a continuous pressure pump. This technical data sheet describes the steps you need to take to enter the curve into the FHC.

 Many fire sprinkler installations now use flexible sprinkler connections such as the Rapiddrop® system. These types of systems usually consist of a corrugated stainless-steel pipe and a bracketing system which allows the sprinkler head to be located centrally in ceiling tile, this type of system can save a considerable amount of installation time with the 2nd fix installation pipework.

The FHC hydraulic calculation software can calculate almost any type of fire protection system where water is discharged from a device. This is often a fire sprinkler or water mist nozzle, but we can also calculate wet or dry riser outlets, fire hydrants and water cannons. The list is not limited to these devices, but they are probably the most common; you can apply the same principles as outlined in this technical data sheet to foam pourers, hose reels and other devices where you know the required pressure and flow at the outlet