PumpCalcs reference library
Choosing between three‑phase and single‑phase pump motors alters power density, efficiency, wiring size, and reliability. Understanding the electrical equations, starting‑torque differences, and typical design…
A step‑by‑step guide to calculating the correct motor size for a centrifugal pump, including horsepower, service factor, and safety margin. Learn the governing formulas,…
Pump noise can signal serious hydraulic or mechanical problems. This article explains how to differentiate cavitation, air entrainment, bearing vibration, and recirculation by listening,…
Choosing between grease and oil for pump bearing lubrication determines efficiency, reliability, and maintenance cost. This article explains the governing formulas, compares typical consumption…
Pump overheating arises from inefficiencies that convert electrical power into unwanted heat. This article explains the governing heat‑balance equation, shows how to calculate temperature…
Mechanical seals prevent fluid leakage in pumps, but they can fail due to pressure, temperature, speed, or lubrication issues. This article outlines the principal…
Total Dynamic Head (TDH) quantifies the energy a pump must add to a fluid to overcome elevation, friction, pressure, and velocity effects. This article…
{ “title”: “System Curves Explained: How to Find the Duty Point”, “slug”: “system-curves-explained-how-to-find-the-duty-point”, “excerpt”: “Understanding system curves and locating the duty point is essential…
Proper shaft alignment between a pump and its driver motor is critical for reliability, efficiency, and vibration control. This article reviews alignment concepts, calculation…
Understanding the difference between suction lift and flooded suction is essential for reliable pump operation. This guide explains the governing NPSHA equation, design methodology,…
