Last Update: 10 Jan 2021

How to Connect Air Compressor Fittings?

James Kelly
James Kelly

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Air compressor fittings mainly refer to the air hose fittings and connectors. You have to correctly do these fittings to get the maximum performance of the air compressor and the air tools.

The flawless air compressor fittings maintain a steady airflow and pressure through the hoses providing you the optimal functioning all the time.

The job may seem very easy for you. Without proper guidance, this task will be challenging, and the fittings may have defects.

Here we are giving you a proper direction regarding how to connect air compressor fittings and some essential points to keep in mind.

Stay informed!!!

Categories of Air Compressor Fittings that You Can Use

Generally, air compressor fitting is classified based on its uses and sizes. Below we’ve mentioned some of these types that may help you.

Straight Air fittings

These types of air fittings are commonly used. It supplies air at one end without supplying in another.

These fittings are often called air cylinders, valves, or tool sort of components.

Elbow Air Fittings

Elbows are used in fitting to make angle connection. This angle connection allows the airflow to pass in a specific direction.

However, you can not regulate the direction. When you set up a direction, it remains in that direction for the rest of the time.

Rotary Union Air Fittings

This fitting fixes the downside of the angle connection fittings. With this fitting, the movement of the fitting is changeable.

Even when it is doing its job, this fitting can rotate freely. And most importantly, you will notice not wear as the manufacturer includes ball bearings within it.

One-touch Air Fittings

The most crucial benefit of this fitting is it does not allow any airflow reduction. It offers a broad category of tubing types.

Moreover, you can remove the tubing without harming the tube and insert the tube with lower resistance.

Special Air Fittings

These are specially designed air fittings to fulfill the exceptional demand for the application. Comes with a wide range, including different features.

For example, some air fitting tubes are made of polyurethane and nylon; some are copper-free; some include high-speed features, etc.

Things to Check While Replacing Air Hose

The common drawback of an air hose is that it can easily wear and develop cracks over time. So, it’s wise to check your air hose frequently for defects or damages.

If you notice any defects or fractures, you have to change your compressor’s air hose. While doing so, you must check the following,

Diameter of Hose

Hose diameter refers to the internal diameter. When replacing an air hose, make sure the hose has a larger internal diameter. It helps more air to flow through the compressor.

Air Hose Length

Air hose length depends on how you will use your air compressor. The longer length allows more air and more pressure to be lost along the way.

You have to pick up a perfect length that can give you balance flexibility and lowest pressure loss.

Hose Material

Finally, you have to be sure about the material if it is durable and can give you the optimal flexibility to do your job.

Rubber is resistant to scrap, PVC tends to coil much, and polyurethane offers little maneuverability but provides suitable recoil hoses.

how to connect air compressor fittings

How to Measure the Diameter of Air Hose

Most of the air hoses developed already fitted with some types of ultimate fittings. As a result, you can easily attach them to your air compressor. And if you need any additional couplers, then you can buy them at the same size.

However, if you are still confused about what hose size you need, then follow these simple tricks to measure your air hose:

Step by Step Instruction on How to Connect Air Compressor Fittings

At first, you need to check your current hose fittings and determine what type you need.

If you need a female Nitto style fittings, then follow the following instructions,

If you have an air hose that needs an air fitting and you want to extend the length, then follow the following instructions,

Applying Teflon Tape on Air Fittings

While mentioning how to connect air compressor fittings, at the first step, we have told you to use thread tape to get a good seal.

Thread tapes are often known as Teflon tapes. It assures free leaks air compressor fittings.

However, you have to be careful while covering the connectors. Make sure you wrapped all over the male connectors in the same direction quite a few times. Do not overlap the extreme part of the connectors.

Avoid excess tapping. The high air pressure can break away the extra tape. It can cause blockage through the air hose. Additionally, it can lower the capability and airflow of your air compressor system.

Things to Consider While Selecting Air Hose Couplings


So, that’s the end of how to connect air compressor fittings. As soon as you understand all the information about your fitting type, it becomes a simple task for you.

Always try to figure out the right type of fitting you need. It will be the best and safest way to complete the job.

Consider the suitable coupler size for your air compressor. Take more time to pick up the right measurement; it will undoubtedly save a lot more time later.

We have given the proper instruction on connecting air compressor fittings above. Just follow those instructions and get your job done comfortably.

How to Connect Air Compressor Fittings? Know About Air Fittings! 1