How to Install Water Line Compression Fittings

What You'll Need
Compression fitting
Copper Pipe

Compression fittings are used between a plumbing pipe and a plumbing part or to attach two pipes together with one another. These are normally found in the rooms in the house with appliances that use water. These types of fittings are regularly found in everyday household appliances such as refrigerators. If you want to get the best use out of these fittings, you should work in a small space with copper pipe. It is relatively simple to install these water line fittings.

Step 1 – Understanding the Parts and How they Fit Together

When it comes to compression fittings, they are essentially parts that connect two pipes with each other. By using one of these you can eliminate the worry over leaking. The parts that need to be fitted in order to achieve the installation are a compression nut, ring, and seat. All three of these combined and fitted in the right way should mean your appliance will function again correctly. You should be aware, though, that compression rings are not able to be removed once used, so you should be careful when installing. Fixing the parts without tightening them up is not advisable as this could cause leaks in the pipe. Therefore, they must be fitted together so that they don’t move.

Step 2 – Turn off the Water

Once you have worked out the parts you will need for this job and what they do, then you are ready to begin. You should start, as you should with any plumbing job, by ensuring the water is turned off fully so as not to flood anything when you are messing about with the pipes.

Step 3 – Slide the Nut and Ring on to the Pipe

With the water turned off you should start by moving the compression nut along the pipe until it’s in the correct position. Next, push the compression ring on to the pipe behind the nut so that it doesn’t come off. The ring is made of a rubber type material and will prevent the nut from slipping.

Step 4 – Tighten the Nut

Start to tighten the nut by hand first of all and then finish off by using the wrench. By doing so, you will force the ring up into the seat and secure it. However, you should be very wary about tightening the nut too much as this may well cause leaks and damage to the pipe itself. After you have made it tight the seat should be pressed firmly against the pipe’s side.

Step 5 – Prevent Leaks

By pushing the seat right up against the pipe this will in turn prevent any leaks happening. You create a seal by doing this and don’t have any gaps at all. As copper is a soft metal the seal will be tighter still as the metal will squeeze into any gaps and adjust accordingly.

Step 6 – Test the Connection

Once all the steps have been followed, the final step is to turn the water back on again and test out the connection to make sure it works correctly. If you do not spot any leaks in the pipe, the connection is sealed and the job has been a success.