Pump Troubleshooting: Low Flow, Noise, Vibration, Overheating
Learn how to systematically diagnose low flow, no flow, noise, vibration, and overheating in industrial pumps. This guide provides core concepts, step‑by‑step procedures, and…
PumpCalcs reference library
Category: Troubleshooting & Failure Analysis
Tools and methods to diagnose common pump problems and prevent failures.
10 resources
Methods · worked examples · references
Impeller Wear, Erosion, and Corrosion: Reading the Damage Pattern
A systematic approach to interpreting impeller wear, erosion, and corrosion patterns helps engineers pinpoint the dominant degradation mechanism, estimate material loss, and choose corrective…
Air Entrainment vs Cavitation: How to Tell the Difference
Air entrainment and cavitation are distinct phenomena that can both degrade pump performance, yet they have different causes and signatures. This article explains the…
Pump Not Pumping? A Step-by-Step Diagnostic Sequence
When a pump fails to develop the expected flow, a systematic diagnostic sequence quickly isolates the cause and prevents equipment damage. This article presents…
Excessive Pump Vibration: Causes, Diagnosis, and Corrective Action
Excessive vibration in a pump can signal mechanical imbalance, mis‑alignment, cavitation, or bearing wear, leading to reduced efficiency, premature failure, and safety hazards. This…
Why Your Pump Has Low Flow or Low Pressure: 12 Causes to Check
Low flow or low pressure in a pump system can cripple processes and waste energy. This article outlines the twelve most common reasons for…
Pump Motor Tripping the Breaker: Causes and What to Check First
When a pump motor repeatedly trips its circuit breaker, the problem can range from simple wiring errors to serious mechanical overloads. This article outlines…
Premature Bearing Failure in Pumps: Why It Happens and How to Stop It
Bearing failures are a leading cause of unexpected pump downtime. This article explains the mechanical and operational reasons behind premature bearing wear, presents the…
Pump Making Noise? How to Tell Cavitation From Air, Bearings, and Recirculation
Pump noise can signal serious hydraulic or mechanical problems. This article explains how to differentiate cavitation, air entrainment, bearing vibration, and recirculation by listening,…
Mechanical Seal Failure: Root Causes and How to Diagnose Them
Mechanical seals prevent fluid leakage in pumps, but they can fail due to pressure, temperature, speed, or lubrication issues. This article outlines the principal…