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How do copper press fittings work?

Published in Plumbing Fittings 2 mins read

Copper press fittings create secure, leak-proof connections by mechanically crimping the fitting onto the pipe. The process uses specialized tools to form a tight seal.

Here's a breakdown of how they work:

  1. Preparation: The copper pipe is cut squarely and deburred to ensure a smooth surface for insertion into the fitting.
  2. Insertion: The prepared pipe is inserted into the press fitting.
  3. Pressing: According to provided information, the fitting is then sealed by pressing the fitting socket and the pipe using the jaws of an electric press-fitting tool. This tool uses specifically designed jaws that match the size and type of the press fitting.
  4. Sealing: During the pressing process, the jaws compress the fitting around the pipe, creating a mechanical seal. This seal is often enhanced by an O-ring or other sealing element within the fitting. The pressing action deforms the fitting and pipe slightly, creating a permanent, leak-proof joint.
Step Description
1. Cut & Deburr Copper pipe is cut squarely and burrs removed.
2. Insertion Pipe is inserted into the copper press fitting.
3. Pressing Electric press-fitting tool with appropriate jaws is used to compress the fitting around the pipe.
4. Sealing Compression creates a mechanical seal, often enhanced by O-rings.

Press fittings offer a faster and often cleaner alternative to traditional soldering or brazing methods for joining copper pipes.

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