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Basic Hydraulic Principles

Pascal's Law

Pascal's Law (from Blaise Pascal 1623 to 1662), comprises a set of principles formulated in 1648.

 

 

The principles state that pressure applied to a confined fluid at any point is transmitted undiminished throughout the fluid in all directions and acts upon every part of the confining vessel at right angles to its interior surfaces and equally upon equal areas.

This is the basic principle behind any hydraulic system, that pressure applied anywhere to a body of fluid causes a force to be transmitted equally in all directions, with the force acting at right angles to any surface in contact with the fluid.

A simple yet effective demonstration of hydraulic fluid in a container can be viewed by clicking the image on the right.

Pascal's Law

A demonstration of Pascal's Law (click to view as SWF)

Instructor Pack for Basic Hydraulic Principles

For instructors, schools and colleges, our instructor pack for basic hydraulic principles contains interactive material for the demonstration of all of the following:

 
 

Pascal's Law

A demonstration of Pascal's Law...

Hydraulic Pressure and Force

NEXT: The relationship between hydraulic pressure and force...

Simple Hydraulic System

How a simple hydraulic system works...

 
 

Hydraulic Brakes

An example of a simple interactive hydraulic braking system...

Hydraulic Swash Plate Pump

How a hydraulic swash plate pump works...

Hydraulic NRV (non-return valve)

Operation of a hydraulic NRV (non-return valve)...

 

 

These and other similar classroom training products can be purchased online now by visiting our training products list.

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