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Can You Use Crimp Fittings On PEX-A?

Are you tired of using traditional fittings for your PEX-A (crosslinked polyethylene of type A) pipes? Look no further than crimp fittings! These innovative fittings offer a secure and reliable connection for your PEX-A pipes, making installation a cakewalk.

So, can you use crimp fittings on PEX-A? Yes, crimp fittings can be used on PEX-A pipes. These fittings provide a strong and secure connection for your PEX-A pipes. Not only that, but crimp fittings also offer a long-lasting seal to prevent leaks and ensure your plumbing system runs smoothly.

In this article, we’ll delve more into crimp fittings, the sizes, benefits, limitations, and how to use them on PEX-A. Read on!

Can You Use Crimp Fittings On PEX-A?

Yes, crimp fittings can be used on PEX-A pipes. Crimp fittings can be used to connect PEX-A pipes together, to connect a PEX-A pipe to a valve or other plumbing fixture.

They are easy to install and provide a secure connection. It’s important to note that crimp fittings require specific tools to install correctly. Also, it is important to follow the manufacturer’s instructions when installing these fittings to ensure they are installed correctly.

can you use crimp fittings on pex-a

Tools For Fixing Crimp Fittings On PEX-A

The basic tools needed for fixing crimp fittings on PEX-A tubing include:

  • A PEX crimping tool
  • A PEX-A pipe cutter
  • A deburring tool

The PEX crimping tool is used to compress the crimp ring onto the PEX tubing and fitting, creating a secure and leak-free connection.

And the PEX cutter is used to cut the PEX tubing to the desired length. Thus, the deburring tool removes any rough edges on the PEX tubing after cutting, ensuring a smooth and clean connection.

How to Instal Crimp Fittings On PEX-A?

Let’s take a look at the installation instructions on how to use crimp fittings on PEX-A pipes.

Step 1: Gather The Necessary Tools

To start, you’ll need to gather the necessary tools for the job. This includes:

  • A PEX-A pipe cutter
  • A crimping tool
  • Crimp fittings

Make sure to select the right size of crimp fittings for your PEX-A pipes.

Step 2: Measure And Cut The PEX-A Pipe

Measure and mark the desired length of the PEX-A pipe. Using a PEX-A pipe cutter, make a clean cut on the marked line. Be sure to deburr the cut pipe by running a deburring tool along the inside and outside of the pipe to remove any sharp edges.

Step 3: Insert The Fitting Into The Pipe

Insert the fitting into the pipe, making sure that it’s fully seated. Take note of the depth of the fitting, as it will be important for the next step.

Step 4: Crimp The Fitting

Place the fitting and pipe into the jaw of the crimping tool. Make sure that the jaw is the right size for your fitting. Then, using the appropriate force, crimp the fitting onto the pipe.

Step 5: Inspect The Connection

After crimping, inspect the connection to ensure that it is secure and leak-free. The fitting should be completely flush against the pipe, with no visible gaps.

Watch this video on how to do it.

Benefits Of Using Crimp Fittings On PEX-A   

Exploring some of the many benefits of using crimp fittings on PEX-A pipes.

Easy To Install

One of the biggest benefits of using crimp fittings on PEX-A pipes is that they are easy to install. Unlike other types of fittings, crimp fittings do not require special installation tools or skills.

All you need is a specialized tool called a crimping tool and a bit of know-how. This makes them a great choice for DIY projects.

Secure And Leak-Free Connection

One of the biggest concerns with any plumbing or heating system is leaks. With crimp fittings, you can have peace of mind knowing that your connection is secure and leak-free.


Crimp fittings are quite inexpensive and easy to find. They are also compatible with a wide range of PEX-A pipe sizes. This makes them a cost-effective option for any plumbing or heating project.


Crimp fittings come in a variety of sizes and styles, making them suitable for a wide range of applications. From basic T-fittings to more complex configurations, there’s a crimp fitting for every need.

What Are The Limitations Of Crimp Fittings?

Crimp fittings have a few limitations, including:

  • These fittings can only be used with specific types of tubing, such as copper or aluminum
  • They are not adjustable after installation. So the tubing must be properly prepared and the fitting must be properly sized before installation
  • The fittings can be difficult to remove or re-use once installed
  • They are not recommended for high-pressure or high-temperature applications
  • These fittings are not fit for use in critical or safety-related systems, as they may not provide a secure or reliable connection
  • They may not be as durable or long-lasting as other types of fittings, such as soldered or brazed fittings


So, if you’re planning a plumbing or heating project and are considering using PEX-A pipes, don’t hesitate to use crimp fittings. They are a tried and true method for creating a secure and leak-free connection that will last for years to come.

Also, when selecting crimp fittings, it’s important to note that the fitting size must match the size of the pipe it is using. Otherwise, it may not create a secure connection and may leak. Besides, consult with a professional or refer to the manufacturer’s specifications to ensure proper fit and function.