Polypropylene pipe, reinforced with fiberglass, for heating. Characteristics, advantages and disadvantages

With the arrangement of modern heating systems, special communications are used. The most common today are polypropylene pipes reinforced with fiberglass, the price of which can vary from 51 to 144 rubles. For pog. M. The technical characteristics of these products make it possible to use them in the most high-temperature environments.

Main advantages

Polypropylene pipe, reinforced with fiberglass, has many positive characteristics for heating. Among them:

• Low weight;
• strength;
• No build-ups during operation.

For the reason that these products have a low mass, it is very convenient to mount them in communication systems on their own. Among other things, their strength allows them to suffer sharp temperature changes. Pipes have high flexibility. That's why with the help of them you can build arbitrarily complex systems. On their inner surface, over time, a mineral deposit does not build up, which can also be called a big plus.

The main minus

Polypropylene pipe, reinforced with fiberglass (for heating), has one significant minus. It is expressed in the limited temperature conditions during operation. It is equal to 95 ° С. If this limit is exceeded and the temperature reaches 140 ° C, the pipeline system will simply melt. In order to exclude such trouble, the manufacturer reinforces the products with metal.

For reference

Reinforcement is a way to strengthen communication systems. For this purpose, aluminum is mainly used. You can place it both in the middle and inside. In the latter case, it is possible to achieve positive results, since there is a high probability that salt deposits will build up on the inner walls. Most often, the plastic is reinforced with aluminum in the middle.

Characteristics of German reinforced pipes

The most common in recent years are polypropylene pipes. Reinforced 25 mm in diameter, for example, will cost 83 rubles. For pog. M. Recently, German pipes are very popular, which are reinforced with glass fiber in the center. Such products have a significant stretch factor. It is equal to Kp = 0.009 mm / m. The pipes have thicker walls than those reinforced with aluminum foil.

They are suitable for the arrangement of hot water systems and for heating systems, for example, the installation of a warm floor or heating, as well as the organization of water diversion. They are able to undergo pressure up to several atmospheres, like metal pressure pipes. The temperature of their working medium can reach 120 ° C, whereas the normative value is 95 ° C.

The main characteristics of pipes from the new polypropylene PPRC, reinforced with fiberglass

Polypropylene pipe, reinforced with fiberglass, has impressive characteristics for heating. Among them - the density, which is equal to 0.9 g / cm ^3. It is worth noting also the melting point - 1490 ° C. The strength limit varies from 34 to 35 N / mm, while the yield strength can be from 24 to 25 N / mm. The linear expansion is 0.15 mm / m, but the thermal conductivity at 200 ° C is 0.24 W / m. The specific heat at the same temperature mark is 2 kJ / kg. Such pipes can be used not only for the arrangement of heating systems, but also for the operation of installations that use compressed air. Such products are suitable for pipelines used in agriculture and industry.

Characteristics of three-layer glass fiber pipes from PP-R

If you are interested in a glass fiber reinforced polypropylene pipe for heating, then you can consider several manufacturers, for example Italian, Czech, Turkish, German and Russian. In the first case, the pipes are capable of operating at 20 bars. Simultaneously, the products of Czech, Turkish, German and Russian production are designed for 25 bar in the first case. And 20 bars - in all the others. The maximum working temperature of Italian, Czech, Turkish, German and Russian pipes is 950, 800, 950, 900 and 1100 ° C, respectively. Each of these products has the same service life, which is 50 years.

If we consider such pipes in terms of the outer diameter, in the first case it can vary from 20 to 63, in the second - from 16 to 125, in the third - from 20 to 110, in the fourth - from 20 to 125, and in the fifth - From 20 to 110 mm. Such polypropylene pipes, reinforced with fiberglass, the price of which justifies the characteristics, can be used for autonomous heating systems and domestic hot water. To see in practice their best qualities, it is necessary to follow the manufacturer's recommendations, which are expressed in the exclusion of the contact of the reinforcing middle layer with water. Among other things, it is recommended to use a special face-piece for mounting.

Additional shortcomings

If you decide to install heating from polypropylene pipes, you should become more familiar with their main disadvantages. They are expressed in the negative influence of ultraviolet on products, as well as in linear expansion. Sun rays aggressively affect the structure of polymers, so after packing they can not be left outdoors, you should protect the products. A minus can be called a linear expansion. It is twice as large as metal pipes. The latter feature leads to the need for reinforcement.

Products are made by double extrusion. The thermoplastic polymer is applied to the reinforced frame under impressive pressure from the outer and inner sides. In air, plastics become hard. And in the end it is possible to form a strong connection with a rigid frame.

What else should I pay attention to?

Reinforced polypropylene pipes, the characteristics of which are presented in the article, have a strong frame in the form of fiberglass. Three-layer structures have an outer and inner layer made of polypropylene, as well as a reinforcing fiberglass layer. During the extrusion, materials are sintered into the crust and form a solid tube body. Such products are more plastic, and their diameter can reach 125 mm.