What Are Pipe Inserts Used For?
Introduction
Pipe inserts are small but useful parts used in many plumbing and heating systems. They are placed inside a pipe before a fitting is connected. Their main job is to support the pipe and help create a strong, secure connection.
Although pipe inserts are small, they can make a big difference. In particular, they are often used with flexible plastic pipes. These pipes can be easy to work with, but they may need extra support at connection points.
That is where pipe inserts can help. They provide strength inside the pipe and help reduce the risk of damage. As a result, the finished connection can be safer and more reliable.
What Is a Pipe Insert?
A pipe insert is a small piece that fits inside a pipe. It is usually made from a strong material, such as metal or hard plastic. The insert is pushed into the pipe before the pipe is connected to a fitting.
The insert gives the pipe extra support from the inside. This is especially helpful when the pipe wall is thin or flexible.
For example, when a compression fitting is tightened, it puts pressure on the pipe. Without enough support, a soft pipe can become damaged or change shape. However, an insert helps the pipe keep its shape.
Pipe inserts are commonly used with plastic pipes. They can also be used with other types of flexible pipe, depending on the system and fitting.
Why Are Pipe Inserts Used?
The main reason for using a pipe insert is to strengthen the pipe at a connection point.
When a fitting is attached, the pipe may be squeezed or compressed. Therefore, the pipe needs enough support to handle this pressure.
A pipe insert can help by:
- Supporting the inside of the pipe
- Helping the pipe keep its round shape
- Reducing the risk of pipe damage
- Improving the connection between pipe and fitting
- Helping create a more secure joint
- Providing extra strength at connection points
In addition, pipe inserts can help make plumbing work more reliable. A well-supported pipe is less likely to move, bend, or collapse when pressure is applied.
How Do Pipe Inserts Work?
The process is quite simple.
First, the correct size of insert is selected for the pipe. Next, the insert is pushed into the end of the pipe. It should fit properly without being forced too far.
After that, the pipe can be connected to the plumbing fitting. Depending on the system, this could be a compression fitting or another suitable connector.
The insert sits inside the pipe and supports it from within. When the fitting is tightened, the pipe is less likely to deform.
As a result, the fitting can grip the pipe more effectively.
This simple design is one reason pipe inserts are widely used in plumbing applications.
Pipe Inserts and Plastic Fittings
Pipe inserts are often used alongside plastic fittings in domestic and commercial plumbing systems. They can provide extra support where a flexible pipe meets a connector.
Plastic pipe is popular because it is lightweight, easy to handle, and resistant to many common forms of corrosion. However, some plastic pipes are softer than metal pipes.
Because of this, they may need internal support at connection points.
When used correctly, plastic fittings and pipe inserts can work together to create a strong connection. The insert supports the pipe, while the fitting joins the pipe to another pipe, valve, or plumbing component.
Therefore, choosing the correct insert for the pipe and fitting is important.
What Types of Pipes Use Pipe Inserts?
Pipe inserts are commonly used with several types of plastic and flexible pipes.
These may include:
- Polyethylene pipes
- PEX pipes
- Multilayer pipes
- Flexible plumbing pipes
- Certain barrier pipes
- Other approved plastic pipe systems
However, not every pipe requires an insert. The need depends on the pipe type, fitting design, and manufacturer’s instructions.
For this reason, it is always important to check the product information before installation.
The insert should also match the pipe size. A 15mm pipe insert, for example, needs an insert designed for that pipe size. Similarly, a 22mm pipe normally requires a suitable 22mm insert.
What Are the Benefits of Pipe Inserts?
Pipe inserts offer several useful benefits.
1. Extra Pipe Support
The first benefit is extra support. The insert sits inside the pipe and helps prevent it from collapsing or changing shape.
This is useful when the pipe is connected to a compression fitting.
2. Stronger Connections
A supported pipe can provide a better surface for the fitting to grip. Therefore, an insert can help create a more secure connection when used correctly.
3. Reduced Pipe Damage
Fittings can place pressure on pipes. However, the insert helps spread and support this pressure from inside.
As a result, the risk of damage can be reduced.
4. Easy Installation
Most pipe inserts are simple to install. They are normally pushed into the pipe by hand.
Because of this, they can save time during plumbing work.
5. Better Long-Term Reliability
A good connection should remain secure after installation. Pipe inserts can provide extra support at an important point in the plumbing system.
Therefore, they can contribute to long-term reliability when the correct products are used.
Are Pipe Inserts Necessary?
Not every plumbing connection needs a pipe insert.
Some fittings are designed to work without one. Other systems may require an insert as part of the installation process.
Therefore, you should always check the instructions for the pipe and fitting you are using.
For example, some manufacturers may state that an insert must be used with a particular flexible pipe. In other cases, the fitting may have been designed for a specific pipe system.
Using the correct method is important because an incorrect connection may leak or fail.
So, never assume that all pipe inserts are the same.
Pipe Inserts for 15mm and 22mm Pipes
15mm and 22mm are common pipe sizes in UK plumbing systems.
For these sizes, there are different types of pipe inserts available. A 15mm insert is designed for a suitable 15mm pipe, while a 22mm insert is designed for a suitable 22mm pipe.
The size must be correct.
If the insert is too large, it may not fit properly. On the other hand, if it is too small, it may not provide enough support.
Therefore, always check the pipe size before buying or installing an insert.
How Do Pipe Inserts Work With Plastic Fittings?
When plastic fittings are used with flexible plastic pipe, the connection needs to be properly supported.
First, the pipe should be cut cleanly. Then, the pipe insert can be placed inside the pipe if the fitting system requires it.
Next, the pipe is pushed into the fitting. The fitting then holds the pipe securely.
In some systems, plastic fittings are designed to provide a simple and reliable connection without complicated tools. However, the correct installation method should always be followed.
A pipe insert can provide the internal support needed to help the fitting grip the pipe correctly.
Choosing the Right Pipe Insert
Choosing the right insert is important for a safe and reliable installation.
Consider the following points:
Pipe Size
Check whether the pipe is 15mm, 22mm, or another size.
Pipe Material
Different pipes can have different requirements. Check the pipe manufacturer’s guidance before choosing an insert.
Fitting Type
The insert should be suitable for the fitting being used. This is especially important when working with plastic fittings.
Manufacturer Instructions
Always follow the manufacturer’s instructions. They can tell you whether an insert is required and which type should be used.
Quality
A good-quality insert should be strong, correctly sized, and suitable for the intended application.
Can Pipe Inserts Prevent Leaks?
Pipe inserts can help create a more secure connection, but they are not a guarantee against leaks.
Leaks can happen for many reasons. For example, the pipe may be cut poorly, the wrong fitting may be used, or the connection may not be installed correctly.
Therefore, correct installation is just as important as using an insert.
When installing plastic fittings, make sure the pipe is clean and properly prepared. Also, make sure the fitting is suitable for the pipe.
Once the work is complete, the system should be checked carefully for leaks.
Common Mistakes to Avoid
There are several simple mistakes that can cause problems.
First, avoid using the wrong insert size. The insert should match the pipe and fitting system.
Next, do not force an insert into a pipe if it does not fit correctly. This could damage the pipe.
Also, avoid mixing components that are not designed to work together. While many plastic fittings look similar, their specifications can be different.
Finally, do not ignore manufacturer instructions. They provide important information about installation and compatibility.
Are Pipe Inserts Good for Plumbing Projects?
Yes, pipe inserts can be very useful for many plumbing projects.
They are small, simple components, but they provide valuable internal support. They can help flexible pipes maintain their shape and improve the connection with a suitable fitting.
For homeowners, plumbers, and maintenance teams, using the correct insert can make installation easier and more reliable.
In addition, plastic fittings are widely used because they are lightweight and easy to handle. When the correct insert is used with the correct pipe system, the connection can be both practical and secure.
Final Thoughts
Pipe inserts are small components that play an important role in many plumbing systems. They fit inside pipes and provide support where a fitting is connected.
They are especially useful with flexible plastic pipes because these pipes may need extra support when a fitting is tightened.
The main benefits include better pipe support, reduced deformation, easier installation, and stronger connections. However, the correct size and type must always be selected.
Whether you are working with 15mm or 22mm pipe, always check the manufacturer’s instructions before installation. This is particularly important when using plastic fittings, because different products may have different requirements.
Ultimately, a pipe insert is a simple component that can help improve the reliability of a plumbing connection. When properly selected and installed, it can support the pipe and help create a dependable system.
For anyone working with plumbing components, understanding how pipe inserts work is useful. Even though they are small, they can provide an important layer of support inside the pipe.
