Toolnoza

Hydraulics & Pumps

Calculate pipe flow losses, pump head, NPSH and water volumes.

Engineering Tools

Water / Pump Horsepower CalculatorCalculate hydraulic water horsepower and required pump brake horsepower from flow, total head, specific gravity and pump efficiency.Pipe Pressure Drop CalculatorCalculate pipe friction pressure loss and head loss using Darcy–Weisbach with a user-entered Darcy factor and fittings K.Water Pump NPSH CalculatorCalculate available pump NPSH from absolute pressure, vapor pressure, elevation and suction loss; compare with required NPSH.Well Pressure Tank Sizing CalculatorSize a bladder pressure tank from pump flow, minimum run time, switch pressures and precharge. Estimate required drawdown and nominal tank volume.Rainwater Harvesting CalculatorEstimate collected rainwater from rainfall, horizontal roof area and collection efficiency.Pump Affinity Laws CalculatorEstimate centrifugal pump flow, head and shaft power after a speed change at fixed impeller diameter.Pipe Volume CalculatorCalculate the internal capacity of a full cylindrical pipe in liters and gallons.Pump Head / TDH CalculatorCalculate pump total dynamic head from elevation, pressure difference and losses.Water Tank Fill Time CalculatorCalculate tank filling time from remaining capacity and net inflow.Well Pump Size CalculatorEstimate well pump total dynamic head, shaft power and electrical input from flow, pumping water level, pressure and losses.

Practical guides: Hydraulics & Pumps

How to Calculate Slurry Density: Formula & ExampleCalculate slurry density and solids volume concentration from mass concentration and material densities.How to Calculate Hydraulic Accumulator Sizing: Formula & ExampleEstimate gas accumulator nominal volume for a required fluid delivery between minimum and maximum pressure.How to Calculate VFD Energy Savings: Formula & ExampleEstimate centrifugal fan or pump electricity savings using speed ratio, drive efficiency, operating hours and tariff.Pump Horsepower Calculation: Water HP, Brake HP, GPM & HeadCalculate water horsepower and pump brake horsepower from flow, total dynamic head, specific gravity and efficiency. Includes DOE formula and example.Pipe Pressure Drop Calculation: Darcy–Weisbach Worked ExampleCalculate pipe friction pressure drop and head loss using flow, internal diameter, Darcy friction factor and fittings, with a complete water example.NPSH Calculation: Available vs Required Pump Suction HeadCalculate NPSH available from absolute pressure, vapor pressure, elevation and suction losses, then compare it with required NPSH and an entered margin.Well Pressure Tank Sizing: Drawdown Formula and Worked ExampleLearn how to size a well pressure tank from pump flow, minimum run time, pressure-switch settings and precharge, then verify the result against a manufacturer chart.Water Tank Fill Time Calculator: Formula and Flow Rate ExampleEstimate tank fill time from capacity, current volume and net inflow, including an outflow, with assumptions and unit checks.Mine Ventilation Airflow: Calculate Q = Area × VelocityCalculate airflow in m³/s, m³/min and CFM, compare personnel and diesel criteria, and account for leakage assumptions.