Pneumatics Flashcards
What gasses are often used in pneumatics?
Air, nitrogen, Helium
What are the pros and cons of pneumatics?
Pros:
> Pneumatics are considered to be clean and can be used in specialist industry environments such as the food and robotics industries
> Pneumatic control systems are faster than hydraulics.
Cons:
> Continuous compression is required because gas is vented.
> Compressed air can contain water which can cause problems with corrosion
What is the symbol of a pressurised gas source?
[Picture27]
What is relative humidity?
> This is a measure of the amount of water within air
> 0% RH has no water in the air
> 100% RH is fully saturated air with the maximum amount of water in it
What is the point where moisture in the air condenses?
The ‘dew point’
What is the problem with using compressed air?
Water is corrosive and can condense and build up in machines
What are the two categories of pneumatic components?
> Dry air
> Oil lubricated
What is a regulator?
Reduces the pressure from high pressure source for use in lower presser systems
What is the schematic for a dry air regulator?
[Picture28]
What is the schematic for a lubricated air regulator?
[Picture29]
