Application
The choice of liquid or gas as the fluid power medium is governed by the application requirements:
- Cost: pneumatics are considerably less expensive to build and operate. For one, air is used as the compressed medium, so there is no need to provide means to drain or recover fluid. With increasing working pressures, Hydraulics require larger parts than pneumatics.
- Precision: Unlike liquids, gases change volume significantly when pressurized making it difficult to achieve precision.
- Safety: Compressed gases tend to expand at high velocities when decompressed, thus pneumatics are typically limited in utilities with a working pressure up to around 100 psi (7 bar).
Read more about this topic: Fluid Power
Famous quotes containing the word application:
“The best political economy is the care and culture of men; for, in these crises, all are ruined except such as are proper individuals, capable of thought, and of new choice and the application of their talent to new labor.”
—Ralph Waldo Emerson (1803–1882)
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—Mark Twain [Samuel Langhorne Clemens] (1835–1910)
“By an application of the theory of relativity to the taste of readers, to-day in Germany I am called a German man of science, and in England I am represented as a Swiss Jew. If I come to be regarded as a bête noire the descriptions will be reversed, and I shall become a Swiss Jew for the Germans and a German man of science for the English!”
—Albert Einstein (1879–1955)