Crimping PEX Without a Crimping Tool: Is It Possible?

Understanding PEX Crimping

PEX (cross-linked polyethylene) tubing has revolutionized plumbing systems due to its flexibility and resistance to corrosion. A crucial aspect of working with PEX is ensuring leak-free connections, primarily achieved through crimping. This process involves using a specialized crimping tool to compress a crimp ring onto the PEX tubing and secure it to a fitting.

Can You Crimp PEX Without a Crimping Tool?

While using a dedicated PEX crimping tool is the recommended and most reliable method, there might be situations where you need to crimp PEX without access to one. While alternative methods exist, it’s important to understand the limitations and potential risks involved.

Crimping PEX with Pliers and SharkBite Fittings: A Workaround

In a pinch, you can create a PEX connection using pliers and SharkBite fittings. However, this method is generally suitable for smaller PEX sizes (1/2″ or 3/4″) and should be considered a temporary solution.

Here’s what you’ll need:

• PEX tubing
• PEX crimp rings
• SharkBite fittings
• Diagonal pliers (with a nose for gripping)

Steps:

1. Cut and Prepare Your PEX: Measure and cut the PEX tubing to the required length, ensuring a clean, square cut.
2. Install the Crimp Ring: Slide a PEX crimp ring onto the end of the tubing.
3. Insert into SharkBite Fitting: Push the PEX tubing with the crimp ring firmly into a SharkBite fitting until it bottoms out. SharkBite fittings are designed to create a secure connection even without a crimp.
4. Position the Pliers: Position the diagonal pliers on either side of the crimp ring, ensuring they securely grip the ‘ears’ or clamp portion.
5. Crimp by Squeezing: With a firm and steady motion, squeeze the pliers together tightly to compress the crimp ring onto the PEX tubing.

Important Considerations:

1. Limited Force: Pliers might not provide the same force as a dedicated crimping tool, potentially leading to less secure connections, especially for larger PEX sizes.
2. Leak Potential: There’s an increased risk of leaks with this method. Always double-check for leaks after crimping.
3. Temporary Solution: This workaround should be considered a temporary fix. When possible, replace it with a properly crimped connection.

The Importance of Using the Right Tools

Using the correct PEX crimping tool is always recommended. Crimping tools are specifically engineered to apply even pressure and create a secure, leak-proof seal that meets industry standards.

Conclusion

While it’s possible to crimp PEX without a dedicated crimping tool using pliers and SharkBite fittings, this method should be cautiously approached. This workaround is best suited for smaller PEX sizes and should be treated as a temporary solution. Regarding plumbing, prioritize long-term reliability and safety by using the proper tools and techniques.