A compression fitting is one that consists of an external compression nut and an internal ferrule. These were once characteristically made of either copper or brass. However, plastic compression fittings have soared to the forefront since they were brought onto the scene in 1968.  

The ferrule differs in shape significantly. However, typically they are round with bevelled rims. This part is used to create a much tighter joint because it effectively closes the room that is connecting the pipe, the receiving fitting, and the nut.

Widely utilised

These fittings are widely utilised across an array of plumbing and electrical waterway systems. In fact, due to their aptitude to offer a leak-tight seal, they are now considered the standard in an array of industries, ranging from the likes of oil and gas to research and development.  

In fact, the most obvious use of plastic compression fittings would be in the home, used alongside pipes and water tanks, such as Tuffa tanks. After all, these fittings are used to connect two pipes together and thus they are a constant in home plumbing. It is likely that most of your appliances that utilise water, such as the dishwasher, will require the use of compression fittings.    

It is no coincidence that compression fittings are widely utilised across a whole host of industries; from agriculture to industrial. There are many benefits associated with the application of plastic compression fittings.

Why plastic?

One of the main advantages has to be the ease of installation. You won’t face a lengthy or complicated installation process when using these fittings. To give further clarity, this is the process typically involved; slide the nut onto the pipe, fasten the compression ring, slip the pipe into fitting, and then make sure the nut is tight. It is as simple as that.

In addition to this, plastic compression fittings offer a great level of flexibility. They can be used with an array of different fittings. Not only this, but they can be used in conjunction with other materials too. Thus, plastic compression fittings can easily be used with connecting copper pipes for example.

If you were not to use compression fittings it is likely you would opt to use the method of sweating pipes together. This is an extremely difficult technique and is definitely not recommended for someone who has not been trained in the skill. If you try to carry out sweating pipes together for the first time it is likely you will experience leaks. Luckily, plastic compression fittings merely require you to follow basic instructions. No training or prior experience is necessary.

And last but not least, if you do notice after time that there is a slight leak, you need not worry about an elaborate or expensive repair. In most instances, you will simply need to re-tighten the nut. Again, when you compare this to a sweated fitting you see the significant benefits, after all with this type of fitting you would have to take everything apart.

Buying plastic pipes

Discover things to consider when you are buying plastic pipes.


Nine times out of ten a quality brand equates to quality products. Make sure you do your research. Read reviews that have been left by previous customers in order to get an honest assessment. Furthermore, be certain that the brand you have chosen provides plastic pipework that is suited to your function. Just because they design and construct pipework does not mean that they do it for all purposes.

Type of plastic

PVC (polyvinyl chloride) pipes are definitely the most commonly used type of plastic in relation to pipework. However, in recent times there has been wind that a lot of individuals are moving away from this plastic type. HDPE (high-density polyethylene) is becoming more popular, especially in drinking water systems. This is because it boasts extremely high levels of robustness and resilience. Aside from this you have PE. This is simply standard polyethylene. Then there is also PP (polypropylene), PVDF (polyvinylidene fluoride) and UPVC (unplasticised polyvinyl chloride). The choice you make again depends on the use. For example, PVDF is widely used in the chemical industry thanks to its fantastic chemical resistance.

Ease of use

Finally, if you are going to fit the pipe system in question then ease of use is imperative. Make sure you are happy with all of the fittings and fixtures being sold. You can also have a look online to see whether guides are readily available or not. Replacement parts should be easily accessible as well should you need to replace something in the future.

Plastic compression fittings are widely utilised across a vast scope of industries in the current day. As you can see; it is a little surprise considering the number of benefits associated with this option.

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