The selection of materials used in home insulation and heating can have a big impact on performance and efficiency. The piping that heats the water or creates steam in the house is a crucial part of any heating system. Metal-plastic pipes have become more and more common in recent years due to their flexibility, durability, and ease of installation.
Layers of various materials, usually with an inner layer of aluminum sandwiched between layers of plastic, make up metal-plastic pipes. This construction combines the flexibility and resistance to corrosion of plastic with the strength and rigidity of metal. Because of this, these pipes work with both hot and cold water systems, which makes them adaptable for a range of uses in a house.
The technical characteristics and labeling of metal-plastic pipes are an important consideration. It is essential to comprehend these specifications in order to choose the appropriate size and type of pipes for your heating system. The diameter of the pipe, its maximum operating temperature, its pressure rating, and any pertinent certifications or standards compliance are usually listed on labels. These specifics guarantee that the pipes fulfill the performance and safety requirements required for your particular installation.
Fittings are just as important as the pipes themselves in guaranteeing a safe and leak-free connection between pipe sections. Fittings are available in a range of sizes and shapes to suit various pipe configurations and installation requirements. Elbows, tees, couplings, and valves are examples of common fitting types. Each has a distinct function in directing or controlling the flow of water through the system.
It’s crucial to take compatibility with the pipes and any other system components into account when selecting fittings for your metal-plastic piping system. Fittings that are properly matched reduce the possibility of leaks or failures while also assisting in maintaining the system’s integrity. Additionally, you can extend the lifespan and overall dependability of your heating system by choosing high-quality fittings from reliable manufacturers.
What are such pipes?
An example of a metal-plastic component is an aluminum pipe that has plastic insulation inside and out. High-strength cross-linked polyethylene, produced by pressing under intense pressure, makes up the inner layer. It can be either a more affordable technical grade or food grade, which is required for water pipes. The inner surface of the pipe is shielded from potential rust and scale growth by smooth plastic.
The aluminum core that is welded together using ultrasound or laser serves multiple purposes simultaneously. By reinforcing the pipe, it increases its durability and resistance to mechanical stresses. Aluminum is shielded from annihilation by layers of polymer covering it on both sides. This prevents aluminum from participating in chemical reactions. Furthermore, this structure lowers the parts’ thermal conductivity and lessens the intensity of condensate formation on their surface. The metal-plastic pipe’s outer layer is composed of a polymer that exhibits exceptional resistance to chemical influences. A unique adhesive is used to firmly fuse together each layer.
Metal-plastic pipes are similar to layer cakes, with an aluminum pipe in the center that is covered in plastic on both sides.
Technical characteristics of metalplastic
Metal plastic’s properties vary slightly depending on the manufacturer. These values appear like this on average:
- Wall thickness of parts varies from 2 to 3.5 mm.
- Available in external diameters from 16 to 63 mm.
- At temperatures below 20° pipes can withstand pressure of about 25 bar.
- At temperatures below 95° the working pressure of the elements does not exceed 10 bar.
- The service life of the products is at least 50 years if they are used properly.
- Temperature mode of operation of products – from -35° to +95°.
- Pipes are able to absorb noise.
- Can be used in drinking water supply.
- Low coefficient of hydraulic resistance.
- Gas tightness.
- Versatility in the use of products. They can be used for plumbing, underfloor heating, heating or cooling applications.
- Low thermal conductivity of parts.
- Elements are resistant to abrasive wear and tear.
- Low roughness of the walls excludes the appearance of deposits.
- High resistance to chemical influences and corrosion.
- Antistaticity, parts do not conduct stray currents.
- High plasticity. In addition, the bending radius of metal-plastic elements can be significantly increased by using special bending devices.
Metal plastic is inexpensive and easy to install. It is possible to pour concrete over the pipes. No particular equipment is needed, and the parts are repairable. It is advised to consider the distinct coefficients of thermal expansion of the component parts—a feature unique to metal and plastic—when installing products. This is why changes in temperature have the potential to weaken the joints and cause leaks. Therefore, mounting such parts in tension is not possible. It is necessary to create compensation loops at the pipe bends.
More costly food-grade plastics can be used to make the inner layer of metal-plastic pipes. These pipes are appropriate for carrying drinking water.
In our guide on heating and insulating your home, we delve into the key elements that contribute to a cozy and energy-efficient living space. One crucial aspect we explore is the labeling and technical specifications of metal-plastic pipes along with a comprehensive overview of fittings. Metal-plastic pipes are gaining popularity in residential construction due to their durability, flexibility, and corrosion resistance. Understanding their technical characteristics and how to select the right fittings is essential for a successful heating system installation. We break down the essential information in clear and understandable terms, helping homeowners make informed decisions about their heating infrastructure. Whether you"re renovating or building anew, our guide aims to simplify the process of choosing the right materials for a warm and snug home.
How products are labeled?
The pipe markings provide basic information about metal-plastic products and the characteristics of their operation. The part’s surface is treated with the following data:
- Logo of the company that produced the product.
- Certificate of conformity number.
- Material type: PE-X or cross-linked polyethylene, PE-R or polyethylene and PP-R or polypropylene.
- Crosslinking method used: pyroxide (a), silane (b), directed electron flow (c), nitrogen bonding (d).
- Nominal pressure, expressed in bars. Indicates the constant pressure at which the pipe can be operated.
- Name of media that the part can transport.
- Batch number and date of manufacture.
Every meter, the marking is put to the pipe. It can be applied to accurately cut parts. It is possible to wash off the markings after installation, but it is preferable to leave them on so that it will be simple to identify the products that were used.
The markings on metal-plastic products provide all the information about them. Figure: An illustration of this type of labeling
For heating and insulation systems, metal-plastic pipes are a popular option because of their affordability, flexibility, and longevity. It’s essential to comprehend pipe labeling and technical specifications in order to choose the appropriate pipes for your requirements. The material, diameter, pressure rating, and temperature resistance of the pipe are usually listed on the label. Customers can use this information to make well-informed decisions based on their unique needs.
It’s critical to consider a metal-plastic pipe’s technical attributes when selecting one. These pipes are composed of layers of various materials, most commonly plastic and metal. While the plastic layer adds flexibility and resistance to corrosion, the metal layer offers strength and rigidity. In addition, the pipes’ diameter establishes their flow capacity, and their pressure rating shows the highest pressure they can tolerate. Knowing these features guarantees that the pipes can support the demands of your insulation and heating system.
Fittings are just as important to the system’s functionality and dependability as pipes. Fittings are used to join pipes and regulate the passage of liquids, such as water. Elbows, tees, couplings, and valves are examples of common fitting types. It’s crucial to take compatibility with the pipes, ease of installation, and corrosion resistance into account when choosing fittings. Selecting premium fittings reduces the possibility of leaks or malfunctions by ensuring a tight and long-lasting connection.
All things considered, metal-plastic pipes and fittings provide a dependable and affordable option for insulation and heating systems. When choosing the appropriate materials for their projects, consumers can make well-informed decisions by being aware of their labeling and technical features. The longevity and efficiency of the system depend on the pipes and fittings you choose, whether you’re a professional contractor working on a large-scale project or a homeowner planning a do-it-yourself installation. Metal-plastic pipes can give years of dependable service, keeping your house warm and cozy for many years to come with proper installation and upkeep.
| Metal-Plastic Pipes | Fittings Overview |
| Flexible and durable pipes made of metal and plastic composite | Various connectors and adapters for metal-plastic pipes |
| Resistant to corrosion and scaling, suitable for hot and cold water | Includes elbows, tees, couplings, and valves |
| Easy to install and maintain, compatible with different plumbing systems | Available in different sizes to fit various pipe diameters |
