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External Gear Pumps: The Complete Selection Guide

External Gear Pumps: The Complete Selection Guide

External gear pumps accounted for around 40% of the approximately £450 million UK hydraulic components market in 2023, making them the most commonly seen pump in UK mobile and industrial work. For engineers and procurement teams, that market position reflects a...
What Causes Pump Cavitation: Physics, Symptoms

What Causes Pump Cavitation: Physics, Symptoms

A pump that suddenly sounds like it's processing gravel usually gets blamed for being worn out. The operator may notice heavier vibration, a fluctuating pressure gauge or a loss of flow, then find that a recently replaced pump has developed the same fault. In...
What Is Volumetric Efficiency: Guide for Hydraulic Pumps

What Is Volumetric Efficiency: Guide for Hydraulic Pumps

Volumetric efficiency in a hydraulic pump is the ratio of its actual fluid output to its theoretical output, expressed as a percentage. If a 100 cc/rev pump delivers 92 cc/rev, its volumetric efficiency is 92%, and the missing flow is leakage inside the pump. That...