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    • Snow Blowers
      • Electric
      • Single Stage
      • Two-Stage
      • Ariens
        • Ariens Compact 24
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        • Ariens Deluxe 28″
      • Honda
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        • Husqvarna ST224P
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      • Whole-House Water Filters
        • Aquasana
      • Under-Sink Water Filters
  • Home Climate
    • Air Purifier For Smoke
    • Electric Fireplace
      • Dimplex
      • Duraflame
      • Corner
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      • Wall Mount
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    • Dehumidifiers for Basements
    • Garage Heaters
      • Fahrenheat
      • King Electric
      • ProFusion
    • Tower Fans
    • Window Air Conditioners
  • Home Necessities
    • Food and Drinks
      • Cold Brew Coffee Makers
      • Electric Tea Kettles
      • Hot Plates
      • Electric Skillets
      • Electric Grills
      • Charcoal Smokers
      • Electric Smokers
      • Pellet Smokers
      • Propane Smokers
      • Pellet Stoves
      • Wood Stoves
    • Garage Door Openers
      • Quiet
      • WiFi
      • Chamberlain
        • Chamberlain B550
        • Chamberlain B970
        • Chamberlain WD832KEV
      • LiftMaster
        • LiftMaster 8355
        • Liftmaster 8500
        • Liftmaster 8550W
      • Ryobi
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      • Bathroom Vanities
      • Infrared Sauna
      • Massage Chairs
      • Oil Diffusers
      • Sleeping Needs
        • Futons
          • For Everyday Sleeping
        • Mattress Toppers
    • Paitball Guns
  • Pets
    • Air Purifier For Pets
    • Aquarium Heaters
    • Automatic Dog Feeder
    • Carpet Cleaners for Pets
    • Dog Clippers
    • Electric Dog Fence
      • Extreme
      • GPS
      • Halo
      • PetSafe
      • Sit Boo-Boo
      • SportDOG
      • SpotOn vs. Halo
      • SpotOn
      • WIEZ
    • Self-Cleaning Litter Boxes
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Types of Air Compressors

September 5, 2018 //  by Tom Collins

Air compressors can be used for several different tasks around your house, including cleaning, powering tools, and filling tires. Different applications are going to need different types of air compressors. There are so many different types on the market that it can be quite confusing trying to figure out which one you need and the difference between the most common types. This article is going detail the different kinds of common compressors so it’s easier to understand.

Power Type

The first feature of air compressors is their power type. The most common power types for air compressors are electricity, gasoline, and diesel. Keep in mind, there are positives and negatives to each one. For starters, compressors that run on electricity will always work as long as there is power but you have a higher chance of having a more expensive power bill. The gasoline powered compressors will only work if you have gas and you won’t have to worry about power bills, but gasoline can be expensive. The compressors powered by diesel are similar. You won’t have to worry about a high electric bill, but diesel isn’t cheap. The best thing to do is sit down and figure out what is the most affordable for you.

Pressure regulator.

Pressure Classification

There are 3 different pressure levels when it comes to compressors. They will be listed below, but we first need to talk about the differences before looking at them. For starters, the biggest difference is that some applications won’t work with some of the levels. An example of that would be a heavy duty tool that use an air compressor won’t do well with the lowest setting. You want to make sure that you get a compressor with the right amount of pressure to be able to do the application you need to. If you don’t, you won’t be able to do what you need to and you’ll probably end up having to buy a new compressor that can do the job.

  • Low pressure- has 150 psi or less
  • Medium pressure- has 151 psi to 1,000 psi
  • High pressure- has 1,000 psi and higher

Operation Classification

Similarly to the pressure levels, there are several different operation types. Just like everything else, different operations are going to be better for certain jobs. For instance, a scroll compressor is going to be best for air conditioning equipment, while an axial compressor is best for things such as jet engines. One thing to keep in mind is if you try to use a compressor for something it isn’t made for, then it could have negative consequences. Besides not working, there’s a chance that it will try to overwork and catch fire or blow up. The best thing to do is just figure out which style compressor is best for which jobs and get one of the ones that’s compatible with what you’re trying to do.

  • Single-Stage Reciprocating Compressor- air is compressed once by a piston
  • Two-Stage Reciprocating Compressor- air is compressed twice by a piston
  • Compound Compressor- air is compressed by 2 stages or more
  • Rotary-screw compressor- uses positive displacement rotary
  • Rotary Vane Compressor- air is compressed by positive displacement vanes
  • Scroll Compressor- compresses air for refrigeration
  • Turbo compressor- compressor that pressurizes gases
  • Axial Compressor- constantly pressurizes gases with rotation

Type of Displacement

All compressors use displacement. This means that they move the air or gases around to make it work. The two types of displacement that they use are positive and negative. While they are both a form of displacement, they do different things. In addition, some applications will need to use one over the other. Keep in mind, if you’re trying to use the opposite displacement method of what the application requires, you won’t be able to properly do the job and, depending on what the job is, there’s a chance that you can ruin the entire thing. Make sure you check to see what form of displacement you need to be using so you don’t run into any issues.

Air filter.

Positive Displacement

The way a compressor that uses positive displacement works is by bringing in a certain amount of air into the chamber then slowly reducing the amount of air that’s in the chamber to actually compress the air. The best type of applications for positive displacement compressor use are ones where the load is variable. This means that the exact load will vary because the demands aren’t always the same. Using a positive displacement compressor for these are best because they can easily compress the correct amount of air without the user having to interfered too much. In addition, they’ll be able to handle the different loads without any negative effects.

Negative Diplacement

Now that you know how positive displacement compressors work, we need to look at how negative displacement works. They are more widely known as non-positive displacement compressors. These types of compressors have a rotating mechanism inside. The kinetic energy that comes off of the mechanism is turned into pressure energy. The amount of output on these compressors differ because it’s based on the rotation of the mechanism. If the mechanism is spinning slowly, then the output is going to be lower than if it’s spinning quickly. The applications that are best used with these are ones that don’t need a constant amount of output since it varies so much.

Which Type Of Air Compressor Is Best For You?

As you can see, there is a lot to think about when figuring out why kind of compressor your going to need. The best thing to do is do some research and stick with one of these common types. Once you get into ones that aren’t very common, not only are they usually harder to operate, but they sometimes don’t have a lot of information available. Just to reiterate, remember that different applications will need different types of compressors so it isn’t a one size fits all type of situation. With a little research you should be able to find the best air compressor for your needs in no time.

Category: Air Compressors

About Tom Collins

Hey, I’m Tom Collins!

General contractor extraordinaire, I have a flair for testing out and reviewing some of the best home products money can buy. My team’s reviews have helped thousands of folks across the globe and my career in home improvement has given me a lot of insight into what makes a good, lasting product, and what is just crap.

Poke around, explore, and welcome to This Electric Home!

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