A suite of calculators built for water system verification, structural analysis, and infrastructure planning.
Available now
Pipe Sizing Calculator
Velocity-based sizing for water, wastewater, sludge and hydraulic oil pipelines.
System Head Calculator
Static and dynamic system head for pumped systems. Multi-section pipework, Crane TP-410 fittings, variable speed operating points and system curve output.
Pipe Head Loss Calculator
Darcy-Weisbach friction loss for a single pipe run with Colebrook-White friction factor. Velocity, Reynolds number, and hydraulic gradient.
Surge Pressure Calculator
Joukowsky waterhammer pressure rise at valve closure. Wave celerity, critical closure time, and max/min system pressure.
Pipe Thrust Calculator
Resultant thrust force at pipe fittings including dead ends, bends and tees, from internal pressure. Block sizing requires geotechnical assessment.
Air Release Valve Sizing
Sizing calculator for an air release valve based on flow, pressure and added factor of safety.
Hydraulic Test Pressure
Test pressure calculations for pumped and gravity-fed systems including surge and OPP.
Chlorine Dosing
Chemical feed rate for NaOCl dosing with CT compliance check for Giardia and virus inactivation.
UV Dose Calculator
Required UV dose from EPA log-inactivation tables for Cryptosporidium, Giardia, and virus, with indicative reactor sizing.
Gravity Drain Hydraulic Calculator
Time-stepped drainage simulation for pipes and tanks through a smaller orificed drain.
Unit Converter
Live conversions for flowrate, volume, velocity and pipe DN.
Coming soon
NPSH Calculator
Net positive suction head available vs required — cavitation risk check for pump installations.
Dechlorination Dosing
Sodium bisulphite or sodium thiosulphate dose to neutralise residual chlorine before discharge.