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How Do You Crimp Compression Fittings?

Published in Plumbing 2 mins read

Crimping compression fittings is a straightforward process that involves using a specialized tool to secure the fitting onto a pipe. Here's a step-by-step guide:

1. Prepare the Pipe and Fitting

  • Cut the pipe to the desired length using a pipe cutter or hacksaw.
  • Deburr the cut end of the pipe to remove any sharp edges that could damage the fitting or cause leaks.
  • Apply thread sealant tape or pipe dope to the threads of the fitting to prevent leaks.

2. Assemble the Fitting

  • Insert the pipe into the fitting until it reaches the stop.
  • Ensure that the pipe is fully seated in the fitting before proceeding.

3. Crimp the Fitting

  • Use a compression crimping tool designed for the size of the fitting.
  • Place the jaws of the crimping tool around the fitting's compression nut and tighten the tool until the nut is fully crimped onto the pipe.
  • The crimping tool will compress the nut, creating a tight seal between the pipe and the fitting.

4. Inspect the Connection

  • After crimping, check for any leaks by applying pressure to the pipe.
  • If there are any leaks, tighten the nut slightly using a wrench.
  • If the leaks persist, you may need to re-crimp the fitting or replace it.

5. Tips for Success

  • Use the right size of crimping tool for the fitting.
  • Ensure that the pipe is fully seated in the fitting before crimping.
  • Apply even pressure when crimping to ensure a tight seal.
  • Always inspect the connection for leaks after crimping.

Crimping compression fittings is a relatively simple process, but it's crucial to follow the steps carefully to ensure a leak-proof connection. By using the right tools and techniques, you can create a secure and reliable pipe system.

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