WLDPH501-BASIC OF PNEUMATIC AND HYDRAULIC SYSTEMS
Introduction
Both pneumatics and hydraulics are applications of fluid power. Pneumatics uses an easily
compressible gas such as air or a suitable pure gas, while hydraulics uses relatively
incompressible liquid media such as oil.
Most fluid power circuits use compressed air or hydraulic fluid as their operating media.
While these systems are the same in many aspects, they can have very different
characteristics in certain ways.