Connect PEX Pipe to Hose Bib Like a Pro: Step-by-Step Instructions for Beginners

Connecting PEX pipe to a hose bib is a crucial step in outdoor plumbing projects. PEX (Cross-Linked Polyethylene) pipes offer durability, flexibility, and corrosion resistance, making them an ideal choice for water supply lines. This guide will provide a step-by-step walkthrough on how to connect PEX pipe to a hose bib, ensuring a secure and leak-free connection.

Materials Required

• PEX pipe
• Hose bib
• PEX crimp tool
• PEX expansion tool (if using PEX-A pipe)
• PEX crimp rings
• Adjustable wrench
• Teflon tape (optional)

Types of PEX Pipe

There are two primary types of PEX pipe:

• PEX-A: Flexible and requires expansion before connecting
• PEX-B: More rigid and can be crimped directly

Step-by-Step Instructions

1. Prepare the PEX Pipe

• Cut the PEX pipe to the desired length.
• Deburr the edges of the pipe using a utility knife or deburring tool.
• For PEX-A pipe, insert the expansion tool into the pipe and expand it to the appropriate size.

2. Install the Hose Bib

• Wrap the threads of the hose bib with Teflon tape (optional).
• Screw the hose bib into the desired location on the wall or foundation.
• Tighten securely using an adjustable wrench.

3. Connect the PEX Pipe to the Hose Bib

• For PEX-A pipe, insert the expanded pipe over the hose bib’s barb.
• For PEX-B pipe, insert the pipe directly over the barb.
• Push the pipe all the way onto the barb until it stops.

4. Crimp the Connection

• Place a PEX crimp ring over the pipe and onto the hose bib’s barb.
• Insert the crimp tool’s jaws over the crimp ring and squeeze to crimp the connection.
• Ensure the crimp is secure and evenly distributed.

5. Test the Connection

• Turn on the water supply and check for any leaks.
• If there are leaks, tighten the crimp or replace the crimp ring.

Additional Tips

• Use a sharp utility knife to cut the pipe cleanly.
• Deburring the edges of the pipe prevents snags and leaks.
• Ensure the PEX pipe is fully expanded before connecting it to the hose bib.
• Tighten the crimp connections securely, but avoid overtightening.
• If the hose bib is not threaded, a PEX adapter can be used to connect the PEX pipe.

Troubleshooting

• Leaks: Inspect the crimp connections and tighten or replace as needed.
• Difficult to crimp: Ensure the PEX pipe is fully expanded or the crimp tool is properly calibrated.
• Burst pipe: Check for excessive pressure or damage to the pipe.

Key Points

Connecting PEX pipe to a hose bib is a straightforward task that can be completed with the right tools and techniques. By following the steps outlined above, you can ensure a secure and leak-free connection that will provide years of reliable water supply.

Frequently Asked Questions

Q: Can I use any type of PEX pipe for this connection?
A: Yes, you can use PEX-A or PEX-B pipe.

Q: How do I know if the crimp connection is secure?
A: The crimp should be evenly distributed around the pipe and the crimp ring should not be loose or slipping.

Q: What should I do if I cannot get the pipe to expand?
A: Check if the expansion tool is the correct size for the pipe diameter and insert the tool further into the pipe.