Compression Fittings vs Flare Fittings vs Push-Fit Fittings

In our journey with copper piping, today we embark on a comparison journey, where we will compare compression fittings vs flare fittings vs Push Fit Fittings. Ready? Set? Let's go!

Compression fittings are very common in shut off valves. Many times a shut off valve will have a compression fitting on one end and a pipe fitting on another end. Yet, it is also common that the shut off valve has compression fittings on both ends.

When should you use compression fittings? For both rigid and soft copper piping, compression fittings work well.

Flare fittings, in contrast, are used mostly for soft tubing. This means that the use of flare fittings is usually under-slab water piping. This type of fitting helps to make a soft copper pipe match the male end of a flared fitting.

In addition to being used for under-slab water pipping, soft copper tubing is also used to connect gas appliances in in-house gas pipping.

The last type of fitting we will compare in this post is push-fit fitting. This type of fitting workers very well against leaks and are easy to use. It is common to use push fittings when bridging a gap where you cut out the bad section of a pipe and install the push fit piece.

Push fittings consist of a neoprene O-ring, metal crimping ring, and a fitting body. They can be made out of brass or plastic.

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