Wet-well Sizing
Working volume, drawdown time and pump-start frequency.
Metsiworx Engineering Tools
Practical calculations
for pumping systems
Select a calculation category. Each tool records the project inputs, provides an immediate preliminary result and creates a branded calculation report.
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You may review the available calculation categories below. Opening a calculator requires automatic email verification and a one-time company profile. The online tools provide free preliminary calculations. Any Metsiworx design input, engineering review, equipment selection, signed output or formal deliverable is a separately scoped and paid professional service.
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Calculation library
Choose an engineering tool
Tools are added progressively and remain subject to independent engineering verification.
ElectricalAvailable now
Pump Station Generator Sizing
Compare DOL, star-delta, soft-starter, standard VSD and low-harmonic VSD starting arrangements.
- Running and starting demand
- VSD harmonic allowances
- PDF calculation report
LifecycleAvailable now
Pump Lifecycle Costing
Compare pump alternatives using capital cost, energy consumption, maintenance, downtime and operating life.
- 5 to 40-year evaluation
- Escalation and present-value discounting
- Payback and cost comparison
HydraulicAvailable now
Pump Duty, TDH & Motor Sizing
Calculate the duty per operating pump, total dynamic head and preliminary motor requirement.
- Static, pressure and friction head
- Hydraulic and electrical power
- PDF calculation report
HydraulicAvailable now
Pipe Velocity & Friction Loss
Calculate flow velocity, Darcy friction, minor losses and pressure loss for a pipeline section.
- Laminar and turbulent flow
- Project-defined velocity limits
- PDF calculation report
EnergyAvailable now
VSD Pump Energy Savings
Compare an entered fixed-speed load profile with an indicative variable-speed operating case.
- Three operating demand bands
- Annual energy and cost savings
- Payback and project NPV
HydraulicAvailable now
Parallel Pump Operation
Fit entered pump and system curves to quantify the actual flow gained as identical pumps are added.
- Two to six pumps in parallel
- Operating flow and head
- Incremental-flow comparison
ElectricalAvailable now
Cable Sizing & Voltage Drop
Screen a candidate pump-motor cable for operating current, derated ampacity and running and starting voltage drop.
- Required tabulated ampacity
- Installation correction factors
- Motor-starting voltage drop
ElectricalAvailable now
Transformer & MCC Sizing
Convert project load groups into diversified transformer demand and preliminary MCC ratings.
- Transformer demand and rating
- Incomer and busbar capacity
- Terminal fault-current screening
Planned categories
A growing technical resource
NPSH Screening
Available suction head and preliminary cavitation-risk screening.
Pump Efficiency Assessment
Measured hydraulic and wire-to-water efficiency with improvement screening.
Surge-risk Screening
Preliminary transient-risk indicators for rising mains and pump trips.