LEARNING HUB: COMPRESSED AIR

Welcome to the ‘Air Compressor University’. In this section of the website I will teach you everything I know about industrial air compressors.

These will mostly be general informative pages about air compressors, air compressor parts and everything air compressor related (dryers, filters, maintenance, etc).

If you are looking to buy an air compressor and looking for buying help, be sure to check out my air compressor buying section.

If your air compressor is having problems, read these Air Compressor University pages for general information, and be sure to ask your questions/problem in the Air Compressor Troubleshooting pages.

I have divided the information in this section into 4 main blocks:

* Air compressor types

An overview of the different kinds of air compressors. I mainly focus here on rotary screw compressors, reciprocating compressors and scroll compressors.

* Air compressor Parts

An overview of the main parts of the air compressors. I will discuss here the function and use of parts like pressure switches, oil filters, check valves, unloader valves, and a lot more.

* Compressor Uses

Some pages about different compressor uses: paintball compressors, dental compressors, scuba diving compressors, portable air compressors, and more..

* Compressed Air Systems and components


This part is not focused on the air compressor itself, but focuses on everything that comes after it: compressed air piping, air dryers, compressed air filters, and more..

Use the menu in the right column to navigate all the different topics. Some topics span multiple pages or are dived into sub-topics, so be sure to check them all out.

Ask Your  QuestionsWant to learn even more about air compressors?
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Compressor types

Rotary screw compressors

How oil-injected rotary screw air compressors work

How oil-free rotary screw air compressors work

Screw air compressor elements (air-ends)


The Reciprocating air compressor

Single stage reciprocating air compressors & Two stage reciprocating air compressors

Scroll compressors

Portable air compressor

Portable air compressor parts and maintenance


Portable air compressor operation


Best Portable air compressor

Air compressor parts

Compressor Air filters


Air compressor oil filter


Air compressor oil


Air compressor pressure switch

How a compressor pressure switch works


Setting your air compressor pressure switch


Air pressure switch models and options


Buying a Compressor pressure switch

Air compressor unloader valve
Air compressor unloader valve / inlet valve
Air compressor check valve: what it does, why it’s there and how it works.

Air compressors uses

Scuba diving and the scuba air compressor
Paintball compressor
Dental Compressor
12 volt air compressor

Compressed air systems and Components

Compressed air filters
Inline compressed air filter
Compressed air piping

The best compressed air pipe for you
Compressed air pipe sizing
Compressed air pipe sizing calculation

How to select a compressed air dryer

Refrigerated compressed air dryer
What you should know about your desiccant compressed air dryer.
Compressed Air Dryer Manufacturers

Compressed air quality