1.
Confidential | © 2017 by Epiroc. All rights reserved.
1
Important Properties
• “Shapelessness”
– Liquids have no neutral form
– Conform to shape of container
– Easily transferred through piping from one location to another
• Incompressibility
– Liquids are essentially incompressible
– Once force is removed, liquid returns to original volume (no permanent
distortion)
• Transmission of Force
– Force is transmitted equally & undiminished
in every direction -> vessel filled with pressure

2.
Confidential | © 2017 by Epiroc. All rights reserved.
2
Hydraulic Theory
Pascal’s Law
States that pressure exerted anywhere in a confined incompressible fluid
is transmitted equally in all directions throughout the fluid such that the
pressure variations (initial differences) remain the same (F = P*A)
Pressure = Force/Area
Liquid properties enable large objects (rudder, planes, etc) to be
moved smoothly

3.
Confidential | © 2017 by Epiroc. All rights reserved.
3
HYDRAULIC SYMBOLS

4.
Confidential | © 2017 by Epiroc. All rights reserved.
Hydraulic symbols
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5.
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System
2. Hydraulic advantages