Fire Pump Sizer

Preliminary sizing and checking of hydrant and sprinkler pumpsets to AS 2941 – duty point, pump, driver, fuel, exhaust and compliance checks.

Detailed mode (Melfire staff)

Supplying a pumpset in Victoria? Installing or replacing a fire pumpset in Victoria requires an Engineering Certificate from a registered engineer and a Building Permit from a building surveyor. Use this tool for preliminary sizing only. Melfire can draft the plans, prepare the fire brigade submission, coordinate the engineering and performance solution submissions, and build the pumpset.

Project

Project Address System type

Demand

Hydrants – most disadvantaged outlet

Flow L/s Residual kPa Height above pump m Pipe friction kPa

Sprinklers – most remote design area

Flow L/s Pressure kPa Height above pump m Pipe friction kPa

Hose reel / domestic flow at same time L/s

Safety margin

On flow % On pressure %

Enter pipe friction at the flow the pump will deliver.

Suction supply

Source Site altitude m

Lowest water level above pump m Highest water level above pump m

Pipe size DN Length m Fittings eq. length m Water temp °C

Pumpset

Pump brand Engine brand Engine

Pump

Driver Arrangement Pump speed Component pressure rating kPa Discharge pipe DN Max ambient air °C Housing

Variable speed drive Engine cooling

Diesel exhaust

Pipe length m Bends Silencer loss kPa Engine back-pressure limit kPa

Exhaust rises above the engine

Use the back-pressure limit from the engine data sheet.

Preliminary sizing only. Results use generic pump and engine performance until manufacturer curves are selected, and must not be used for construction. The final design must be engineered and certified by a registered engineer, with a building permit from a building surveyor, to the current Australian Standards. Clause references are to AS 2941–2013.