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Engineering Tools
Calculators & Simulators
Free interactive engineering tools to size your system, simulate pump behaviour, and estimate operating costs. Built by GPC engineers, backed by 30+ years of field data.
VFD Pump Simulator
Adjust frequency to see how head and flow respond on a centrifugal pump curve.
Available nowRO Capacity Calculator
Estimate the RO plant size you need based on demand, recovery, and feed TDS.
Coming soonSoftener Sizing
Calculate resin volume and regeneration cycle from hardness and consumption.
Coming soonVFD Pump Performance Simulator
Move the slider to see how operating frequency affects the pump's head and flow curve (Affinity Laws — placeholder math, real curves coming).
Simulate Frequency
30 Hz50 Hz60 Hz
Output Metrics
Max Head (H):45 m
Max Flow (Q):3 m³/h
Placeholder rated curve. Send your real pump diagrams and we'll plot your actual product performance here.