Pump Sizing Calculator — Calculate Pump Requirements for Your System

Pump Sizing Calculator

Calculate pump power, flow rate, head pressure, and energy requirements for your water system. Estimate pump size for residential, agricultural, and industrial applications.

Step 1: Pump Requirements

1.0 (Water)

Pump Sizing Guidelines

Total Dynamic Head = Static Head + Friction Loss. For residential water systems, typical flow rates are 5-20 GPM. Industrial pumps may require 100+ GPM.

Step 2: System & Efficiency

8 hours/day

Efficiency Factors

Pump efficiency typically ranges 50-85%. Motor efficiency 85-95%. Adding a VFD can save 20-50% energy. Consider system curves for accurate sizing.

Pump Sizing Results

Summary
Pump Specifications
Energy Analysis

Required Pump Power

2.1 HP
1.6 kW (Hydraulic Power)
Hydraulic Power
1.6 kW
Shaft Power
2.0 kW
Motor Power
2.2 kW
Daily Energy Use
17.6 kWh

Recommended Pump Specifications

Parameter Value Unit Notes

Pump Selection Guidelines

Select a pump with 10-20% higher capacity than calculated. Ensure NPSH (Net Positive Suction Head) is adequate. Consider duty point on pump curve for optimal efficiency.

Energy Consumption & Cost Analysis

Daily Energy Cost
$2.64
Monthly Cost
$79.20
Annual Cost
$950.40
CO₂ Emissions
8.8 kg/day

Energy Saving Tips

1. Right-size pump to avoid oversizing
2. Use VFD for variable flow applications
3. Regular maintenance to maintain efficiency
4. Optimize piping to reduce friction losses

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