Perforated metal pipe: types, description and application features

2024 Author: Howard Calhoun | [email protected]. Last modified: 2023-12-17 10:16

Engineering support of a suburban area requires efficient and reliable groundwater drainage systems from the owner of the organization. There are different approaches to the arrangement of such an infrastructure, but in any case, the quality of its work will depend on the materials used. Already in the simplest systems, the main technical and operational load falls on the drainage lines. For laying such circuits, a perforated drainage pipe is used, which can be made of plastic or metal. Recently, there has been a widespread use of PVC pipes, but steel products also have many advantages.

Drainage pipes in general

To understand the features of such pipes, it is worth referring directly to the drainage system, which is formed by these components. The need to arrange a filter layer on the surface of the earth arises in cases where rain and groundwater at the site have a destructive effect on nearby structures. To eliminate such problems, a perforated pipe is used, which is laid in accordance with the developed drainage scheme. Mainthe task of such networks is to protect foundations and basements from water erosion.

Specific operation causes a number of differences in drainage pipes. First of all, they must be made of durable material. For effective drainage and facilitating the operation process, they may have design features. In particular, the perforated pipe is provided with special holes that perform the tasks of filters in some way.

Pipe specifications

If standard water pipes require a certain standardization in shape, size and fixtures for connection, then for drainage systems such unifications are rather blurred. This is due to the fact that each site is individual, so the owner must focus strictly on the project developed for his object. However, there are certain size limits. For example, perforated drainage pipes may average 50 to 150 mm in diameter. The wall thickness varies from 0.5 to 15 mm. It is important to note that this applies specifically to metal products, since plastic pipes have a thickness exceeding these values.

The situation with the form is not so clear. Pipes may have curvature, narrowing and special rolling. Again, these qualities are aimed at improving the efficiency of a drainage system with specific characteristics. For example, a perforated drainage pipe with an annular configuration would be represented as a solid arc.

What is special about metal drainage pipes?

If earlier it was metal that was considered as the main material for pipes, regardless of their scope, today it is successfully replaced by plastic. The advantages of the same PVC products include practicality, ease of installation and durability. In turn, a perforated metal pipe still provides higher resistance to mechanical damage and takes up less space due to thin-layer walls. But it is important to note a significant drawback, which largely relegated such pipes to the background behind plastic.

Corrosion susceptibility is the main problem that technologists are actively fighting. The result of their work was the emergence of various options for carbon steel, galvanized products, as well as durable aluminum alloys. After anti-corrosion treatment, perforated stainless pipe can withstand other negative effects of a chemical property. Among them are contacts with alkalis, acidic soils and fertilizers that can be used in a summer cottage.

Varieties of pipes

Manufacturers produce products with perforation for different needs, which also determines technological approaches to manufacturing. In addition to conventional pipes of this type, there are also corrugated models that are used in sewer systems, for land reclamation and for other purposes. featureof such products is higher reliability and resistance to chemical attack. In addition, if it is planned to create systems with redundant channels, then a corrugated perforated pipe will reduce the cost of laying communication lines. This is a plastic, flexible and at the same time sufficiently rigid structure, the service life of which can reach 50 years. Pipes also differ according to the schemes for the implementation of technological holes, but this classification should be considered separately.

Types of perforations

The presence of perforation in itself allows to reduce the weight of the product, which is especially important for metal pipes. At the same time, the strength and functionality of the element is preserved. To date, the creation of round, square and oval holes is practiced. Typically, pipes with such perforations are used in drainage and sewer systems. There are also models with decorative patterned holes, which are used as part of architectural structures. It is noteworthy that the basis from which the perforated drainage pipe is made can be ordinary fittings or a metal sheet, which subsequently undergoes the operation of cutting holes and rolling.

Geotextile cover

During operation, perforated drainage circuits can become clogged with foreign particles in the form of dirt and stones. Obviously, such filling of the drainage line can eventually clog the pipe and disrupt the system. To prevent such phenomena, manufacturersuse a special winding made of geotextile, which performs the function of a kind of filter. The presence of such a shell prevents the ingress of small particles into the circuit and ensures the free passage of water. At the same time, the drainage pipe, perforated with geofabric, retains all the basic operational qualities. The presence of a filter winding has practically no effect on such characteristics as rigidity and mechanical resistance. But the throughput of the drainage network increases. But it is important to take into account that the geofabric is much inferior in terms of service life to the metal base, so in a few years it will be necessary to update the filter material.

Application Features

The main area of use for perforated pipes is sewage and drainage systems. The laying of the material is generally carried out according to the same system as in the case of conventional pipes, but there are differences. The immersion level at which perforated products are laid can reach 6 m, but in practice 0.5 m is enough. At the first stage, a general scheme of the drainage infrastructure is developed, indicating the directions of the contours, connection points and connections. Next, a trench is dug into which the material will be laid. If a perforated corrugated drainage pipe with geofabric is used, then special protective coatings at the bottom of the channel can be dispensed with. If there is no such shell, then it is advisable to take care of laying the primary geotextile substrate. Next, an embankment is made of crushed stone of the middle fraction, after whichthe trench should be covered with sand and covered with a layer of turf.

What to consider when choosing?

The selection of the right product should be based on individual project requirements. Pipes differ in terms of strength, durability, weight and throughput. By the way, one of the main indicators of a high-quality drainage system is its compliance with the volumes of water masses served. From this point of view, it is important to focus on the size of the product. Also, do not save on additional protective properties. For example, a corrugated perforated drainage pipe, thanks to stiffening ribs, receives a higher working resource, and if it is supplemented with geofabric, then the stability of the main drainage function will be ensured.

Conclusion

Experienced builders rarely have problems choosing the right material when arranging communication networks on sites. Manufacturers produce sufficiently high-quality products with various characteristics. In any case, problems with the operation of such systems rarely arise due to the destruction of the functional line. But even if a perforated corrugated drainage pipe with geofabric is used, there is a risk of a violation of the drainage system. Typically, negative factors occur in cases where an incorrect system configuration was originally developed. It should be borne in mind that the drainage pipes closely interact with the intake well, so the quality of the connection with this object is often more important than the characteristics of thepipes. And this is not to mention the calculations of the slope with which the contours are formed.