How to connect PERT tubing to copper tubing?
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Hey there! As a PERT tubing supplier, I often get asked about how to connect PERT tubing to copper tubing. It's a common question, especially for those who are working on plumbing projects or looking to upgrade their existing systems. In this blog post, I'll walk you through the process step by step, share some tips and tricks, and give you all the info you need to make a successful connection.


Why Connect PERT Tubing to Copper Tubing?
First off, let's talk about why you might want to connect PERT tubing to copper tubing. PERT (Polyethylene Raised Temperature) tubing is a popular choice for plumbing because it's flexible, easy to install, and resistant to corrosion. Copper tubing, on the other hand, has been used in plumbing for decades and is known for its durability and reliability. By combining the two, you can take advantage of the best features of both materials.
For example, you might use PERT tubing for the flexible runs in your plumbing system, like under floors or around corners, and copper tubing for the more rigid sections, like the main supply lines. This can make the installation process easier and more cost-effective, while still ensuring a high-quality and long-lasting plumbing system.
What You'll Need
Before you start connecting PERT tubing to copper tubing, you'll need to gather a few tools and materials. Here's a list of what you'll typically need:
- PERT tubing: You can find a wide range of PERT tubing options on our website PERT Tube. Make sure to choose the right size and type for your project.
- Copper tubing: You can purchase copper tubing at your local hardware store. Make sure to get the right diameter and wall thickness for your application.
- Transition fittings: These are special fittings that allow you to connect PERT tubing to copper tubing. You can find transition fittings at most plumbing supply stores.
- Pipe cutter: You'll need a pipe cutter to cut both the PERT tubing and the copper tubing to the right length.
- Deburring tool: After cutting the tubing, you'll need to use a deburring tool to remove any sharp edges or burrs.
- Pipe wrench: You'll need a pipe wrench to tighten the fittings and make sure the connection is secure.
- Teflon tape: Teflon tape is used to seal the threads on the fittings and prevent leaks.
Step-by-Step Guide
Now that you have all the tools and materials you need, let's get started on connecting the PERT tubing to the copper tubing. Here's a step-by-step guide:
Step 1: Measure and Cut the Tubing
- Measure the length of the PERT tubing and the copper tubing that you need for your project.
- Use a pipe cutter to cut the tubing to the right length. Make sure to cut the tubing as straight as possible.
- After cutting the tubing, use a deburring tool to remove any sharp edges or burrs.
Step 2: Prepare the Fittings
- Take the transition fittings and clean the threads with a cloth to remove any dirt or debris.
- Wrap Teflon tape around the male threads of the fittings in a clockwise direction. Make sure to wrap the tape tightly and evenly.
Step 3: Connect the PERT Tubing to the Fitting
- Slide the PERT tubing onto the appropriate end of the transition fitting. Make sure the tubing is fully inserted into the fitting.
- Use a pipe wrench to tighten the fitting onto the PERT tubing. Make sure to tighten the fitting securely, but don't over-tighten it, as this can damage the tubing.
Step 4: Connect the Copper Tubing to the Fitting
- Slide the copper tubing onto the other end of the transition fitting. Make sure the tubing is fully inserted into the fitting.
- Use a pipe wrench to tighten the fitting onto the copper tubing. Again, make sure to tighten the fitting securely, but don't over-tighten it.
Step 5: Check for Leaks
- Once you've connected the PERT tubing to the copper tubing, turn on the water supply and check for leaks. If you see any leaks, use a pipe wrench to tighten the fittings a little more.
- If the leaks persist, you may need to remove the fittings and apply more Teflon tape or replace the fittings.
Tips and Tricks
Here are some tips and tricks to help you make a successful connection between PERT tubing and copper tubing:
- Use the right size fittings: Make sure to choose the right size transition fittings for your tubing. Using the wrong size fittings can result in leaks or a poor connection.
- Clean the tubing and fittings: Before making the connection, make sure to clean the tubing and fittings to remove any dirt, debris, or oil. This will help ensure a tight and secure connection.
- Tighten the fittings properly: Use a pipe wrench to tighten the fittings, but don't over-tighten them. Over-tightening can damage the tubing or the fittings and cause leaks.
- Test the connection: After making the connection, turn on the water supply and check for leaks. If you see any leaks, address them immediately to prevent water damage.
Conclusion
Connecting PERT tubing to copper tubing is a relatively simple process that can be done by anyone with basic plumbing skills. By following the steps outlined in this blog post and using the right tools and materials, you can make a successful connection and ensure a high-quality and long-lasting plumbing system.
If you have any questions or need more information about PERT tubing or how to connect it to copper tubing, please don't hesitate to contact us. We're here to help you with all your plumbing needs. And if you're interested in purchasing PERT tubing, be sure to check out our website PERT Tube for a wide range of options.
We look forward to hearing from you and working with you on your next plumbing project!
References
- Plumbing textbooks and manuals
- Industry standards and guidelines for PERT and copper tubing installation





