Protective corrugated casings for pipes. Corrugation for metal-plastic pipes Corrugated casing for metal-plastic pipes

Corrugated casing PVD - durable corrugated pipe (pershel), made of polyethylene high pressure and produced in the so-called bays. Its properties include flexibility with simultaneous rigidity, this is possible due to the ribs along the entire length of the pipe, providing rigidity in the cross section, which ensures resistance to external force loads. The main purpose of pershel is to serve as a protective shell for metal-plastic pipes when they are drawn through building systems (walls, overlapping structures, etc.), as well as through monolithic structures (for example, through a screed or concrete pouring).

A corrugated LDPE casing is used according to the “pipe to pipe” rule, thus, with the appropriate diameter, it is always possible to replace metal-plastic pipes without disassembling the structure. In addition, the PVD corrugated pipe avoids a breakthrough during temperature fluctuations, thanks to the reserve of space for expansion and contraction of the metal-plastic pipe, protects against leaks, impacts environment. In domestic environments, another advantage of using a polyethylene corrugated shell is noise isolation by absorbing the sounds produced by the water supply system, which provides additional comfort. The corrugated casing is made in two versions: blue color - for cold water supply, red color - for hot water. It is forbidden to directly use the perch to transport gas or liquid.

The corrugated casing of LDPE has a low weight, so it is easily transported in coils, and it does not require the use of special equipment and conditions for installation, which saves time and labor resources. The flexibility of the corrugated pipe allows you to form a route with turns and any complexity of organization. The laying of metal-plastic pipes in the pershel can be carried out at all times of the year, however, at a temperature that does not fall below -25 degrees Celsius. The corrugated casing of LDPE is applicable in the range of permissible temperature indicators, starting from -40 to +90 degrees Celsius - the polyethylene from which it is made is frost-resistant and non-flammable. The corrugated pipe is produced in various diameters, starting from a diameter of 15 mm and up to 50 mm, it is laid in coils of 25 m or 50 m in length. Despite the low cost, the corrugated PVD casing is manufactured to high standards and significantly extends the life of the pipes of the water supply system.

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Pipes of communications of water supply and heating system do not fit very well into the interior of the room, so it is customary to hide them under exterior trim. A lot of effort is being put into this. As a result, the desired effect is achieved and at the same time access is closed even if repair is necessary to the connection nodes. Now, already in the process of building the facility, the craftsmen are laying corrugations for metal-plastic pipe into walls, floors, ceilings, and even into the ground (in basements, for example). This is done for the future far before the installation of the system.

With the support of the site www.ruspetrol.ru, we decided to look into this issue.

What is a pipe-to-pipe system for?

Actually practical solution eliminates many problems:

• Possible leaks will not cause damage to the room as a whole;
• Simple pulling with the correct diameter will ensure easy replacement of the MPT if the system needs to be repaired;
• Inside protective cover water pipes are completely protected from mechanical damage.

Characteristics of the protective corrugation

A wide range of diameters (from 16 to 63 mm) and linear footage allow you not to think about measurements and calculations required amount.

In the coloring of protective corrugated casings Several color options are used, usually red, blue and black. This is convenient for distinguishing between MP pipes when installing cold and hot water. Such a material as an insulating casing does not perform essential functions and is made of a material of known qualities.

Therefore, the manufacturer and country of manufacture does not matter - the buyer pays more attention to the price. When carrying out large-scale work, it is advantageous to immediately purchase bays of 50 m - in this case, the payment will be an order of magnitude lower.

Prices and brands

AT this moment On the market building materials This product is represented by several companies. Among them are Henco, Uni-Fitt. The average cost of a meter of corrugation, depending on the diameter and manufacturer, ranges from 10 to 50 rubles per meter. Products are sold in bays of 50 meters, but almost everywhere you can buy the necessary footage.

Corrugated pipe casings are highly resistant to corrosion and have a long service life. Polypropylene and PVC do not conduct electricity. With a small wall thickness, the material is resistant to mechanical and chemical influences. The use of corrugated casings for metal-plastic pipes is most relevant for complex piping schemes. They can be bent at different angles by changing direction. The main thing is to choose a tube of the desired diameter. For this, the distance between the pipe and the wall of the corrugation is calculated.

Products are supplied in rolls at a cost per linear meter. The minimum weight makes it easy to transport the corrugation to the construction site. Most often, corrugated casings for metal-plastic pipes are used when installing heating systems in residential premises, baths, and industrial warehouses. The material easily tolerates severe frosts, protecting pipes from damage. The main advantage is the ease of installation and operation - installation can be carried out by a non-professional. You can buy corrugation in Moscow in any quantity. The price per linear meter depends on the volume of the order.