How to work with metal-plastic pipes: overview of connection methods and bending techniques

Plumbing fundamentals are crucial when it comes to heating and insulating your home. The longevity and flexibility of metal-plastic pipes have made them a popular option for plumbing and heating systems alike. Understanding how to work with these pipes is essential, whether you’re a professional plumber or a do-it-yourself enthusiast. To assist you in making wise choices for your DIY projects, we’ll examine in more detail the numerous metal-plastic pipe connection options and bending methods in this post.

When connecting metal-plastic pipes, your system’s unique requirements must be carefully taken into account. Utilizing compression fittings is among the most popular techniques. These fittings are made up of a ring and a compression nut that, when tightened, compress onto the pipe to form a tight seal. Compression fittings are a popular option for both pros and amateurs because of their versatility and range of applications.

Using push-fit fittings to join metal and plastic pipes is another common technique. These fittings are exactly as their name implies—all you have to do is push the pipe into the fitting until it locks in place. For individuals seeking a hassle-free solution, this expedites and simplifies installation. In confined spaces where it could be difficult to maneuver traditional fittings, push-fit fittings are perfect.

There are a few methods to think about when bending metal-plastic pipes. A pipe bending spring, which is put inside the pipe to help keep its shape while bending, is one way. By doing this, the pipe is guaranteed to bend smoothly and without kinking or deforming. To fit a range of pipe diameters, pipe bending springs come in different sizes.

An alternative is to use a pipe bending tool made especially for pipes made of plastic and metal. These instruments, which enable you to precisely bend pipes, are available in a variety of forms, including bench-mounted and hand-held benders. Professional-looking bends can be achieved without costly equipment by following the manufacturer’s instructions and taking the necessary safety precautions.

You can confidently take on your home’s plumbing and heating projects if you are familiar with the different metal-plastic pipe connection methods and bending techniques. The secret to success is having the appropriate information and equipment on hand, whether you’re installing a new heating system or fixing a leaky pipe. As we go deeper into these subjects, we’ll provide you useful advice and insights to help you accomplish your remodeling objectives. Stay tuned.

In the realm of heating and insulating your home, the main goal is to optimize comfort while minimizing energy costs. Achieving this balance requires a strategic approach to both heating systems and insulation materials. By understanding the principles of efficient heat distribution and retention, homeowners can make informed decisions about their heating methods and insulation choices. From selecting the right type of insulation for different areas of the house to ensuring proper installation techniques, every aspect plays a crucial role in enhancing the overall energy efficiency and comfort of the home. Through a combination of effective heating systems and high-quality insulation, homeowners can create a cozy living environment while reducing their environmental footprint and saving on energy bills.

Peculiarities of connecting metal-plastic pipes

Overview of metal-plastic pipes available in the domestic market:

Pipes made of plastic and metal are joined by fittings. They are put in place to join pipes of various diameters or to make a turn or branch off of the main line. The method used to connect metal-plastic pipes is either a press or crimp nuts, depending on the fittings that will be utilized. It is important to remember that concealed pipe laying is only permitted with compression fittings. In all other situations, the access points need to be simple to find.

Tools required for the job:

• Pipe cutter. The use of other improvised tools leads to the formation of burrs, violation of the protective coating of the product or uneven cut.
• Calibrator and chamfering tool. They help to give the cut the desired shape and flatten the pipe so that the seals are not deformed.
• Open or horn wrenches for compression fittings
• Press jaws for connecting pipes by means of press fittings. The use of electric tools makes the process easier.

For any variation, the metal-plastic pipes must first be prepared before being connected to one another. Once the required portion of the product has been measured, cut it precisely at right angles. It is important to measure pipes while accounting for the length of the fitting. A calibrator must be used to align the pipe if it is distorted. Remove the internal chamfer using the same assistance as at the end of the product. A chamfer remover is used to remove the outer one. The pipe size should be considered when choosing the tool. then continue based on the connection method.

Option #1 – compression fittings

It is essential to confirm that the product has dielectric gaskets and sealing rings on the shank before using collet fittings. Next, the pipe’s end is covered by the tightening nut. After that, wear the crimp ring. When using a cone-shaped crimp ring, it is best to attach it to the pipe from the side that is narrower.

Next, carefully insert the part’s shank into the pipe using minimal force. Use soap or flax with sealant to keep the connection sealed. The fitting’s body is where the union nut is placed and screwed on. It is preferable to use two wrenches: one for tightening the nut and the other for fixing the part’s body. To keep the part from cracking, adjust the pressure while tightening the coupling nut.

Verify the integrity of the dielectric gasket and sealing rubbers before attaching the compression fitting to the metal-plastic pipe.

• ease of installation;
• It is not necessary to use expensive equipment;
• reusability.

• installation takes a lot of time;
• The connection using collet fittings must not be walled in;
• periodic inspection of the connection is required.

It is essential to take off the compression fitting sleeve and inspect for gaskets and seals before reinstalling it. Next, a small amount of force is applied to the pipe’s end by placing the part’s shank on it. The fitting’s inspection windows must display the pipe. Keep in mind that the pipe’s edge needs to be evenly attached to the part all the way around the perimeter when it is inserted into the fitting. If not, it will need to be disconnected once more, making the connection unstable.

How should press jaws be set up to handle metal-plastic pipes? Before using, rotate the tool’s handles 180 degrees and insert inserts that match the pipe’s size. After closing the handles, make sure the liners are in the proper position. Insert the pipe end with the fitting after opening the tool, then tighten the handles as far as possible. The permanent joint is prepared. It is forbidden to re-crimp press jaws. One closing of the tool handles is required.

Watch the video to learn how to operate the electric press:

• the connection is reliable and durable;
• regular inspection is not required;
• The connection can be "hidden" in the wall and used for floor heating installation.

• special, expensive pressing tools and experience are required;
• A poorly made connection may leak;
• impossibility of reuse.

Option #2 – push-on fittings

Push-fittings can be used to connect pipes without the need for additional tools. The pipe is inserted as far as it will go into the push-fitting to complete the connection. The fitting’s inspection window needs to display the pipe’s end. The water is connected once the entire line is connected. Leak prevention is achieved by pushing in and clamping the fitting’s wedge.

• ease and speed of application;
• No additional tools are needed for the work;
• non-separable connection;
• durability;
• embeddable
• the finished connection can be rotated.

• the costliness of push-fittings;
• After installation, a three-hour waiting period is required.

You can view more information about these kinds of fittings in the following video:

Option #3 – collet fittings

Collet fittings are used to join pipes made of various materials. When pipes come in different sizes, the thread on the part meant for a metal product should match the other metal or plastic parts of the pipe.

Use a fitting that matches the size of the metal-plastic pipe for pipes with varying diameters, with the exception of the threaded portion. It is chosen based on the metal pipe’s dimensions.

After first wrapping the metal pipe in soap, a fitting is installed on it. Place a nut and washer on the edge of the metal-plastic pipe that has been prepared. After that, attach them to one another and tighten the nut.

Metal-plastic pipes are sometimes utilized in heating system installations. Check out our material at https://aqua-rmnt.com/uchebnik/truby/kakie-truby-dlya-otopleniya-luchshe-vybrat.html to learn the advantages and disadvantages of these and other types of pipes.

Fixing metal-plastic pipes to the surface

It’s important to understand how to mount metal-plastic pipes to the surface when working with them. Special clips are required to secure the pipes. The size of the pipe itself should be considered when choosing them. First, the clip needs to be installed. Dowels or self-tapping screws are used for fastening. The spacing between consecutive clips shouldn’t be more than one meter in order to prevent the main line from sagging. The pipe’s bending points need to be secured on both sides.

The space between consecutive clips shouldn’t be more than one meter in order to prevent the pipeline from sagging. The room’s corner’s main line turn needs to be fixed on both sides.

Maintaining comfort and energy efficiency in your home requires adequate insulation and heating. Because they are flexible and long-lasting, metal-plastic pipes are frequently utilized in heating systems. We’ve looked at a number of connection strategies and pipe-bending techniques in this article.

Compression fittings are a widely used connection technique for metal-plastic pipes. Soldering or gluing is not required for the secure connection that these fittings offer. They are simple to install. To create a watertight seal, just insert the pipe into the fitting and tighten the compression nut. Compression fittings are therefore perfect for both professionals and do-it-yourselfers.

Push-fit fittings, which provide quick and tool-free installation, are another well-liked choice. You just insert the pipe into a push-fit fitting until it clicks into place. This makes them ideal for repairs involving small spaces or tricky soldering or gluing jobs. To stop leaks, it is crucial to make sure the pipe is fully inserted.

There are a few methods to take into account when bending metal-plastic pipes. A pipe bending spring is one tool that can be used to help keep the pipe’s shape while it is being bent. This is especially helpful for bending pipe smoothly without kinking or breaking it. As an alternative, you can use a pipe bending tool made especially for metal-plastic pipes, which requires less effort and produces precise bends.

To ensure a dependable and effective heating system, it’s imperative to adhere to manufacturer guidelines and best practices, regardless of the connection method or bending technique you select. In the long run, proper installation and maintenance will help you save money on energy costs in addition to extending the life of your pipes.

In conclusion, using the proper tools and paying close attention to detail are essential when working with metal-plastic pipes. An effective heating system for your house can be installed with ease if you are conversant with the various joining and bending techniques.

Video on the topic

Basic rules of working with metal-plastic pipes

Method of connecting the metal-plastic pipe

Joints and assembly of metal-plastic pipes

The plumber showed how to connect a m-pipe with a fitting, if there is no calibrator – chamfering machine

A reliable method of joining metal-plastic pipes