Features of the installation of pipelines from different materials — metal, PND, PVC

Krympress reports:

Installation of pipelines is an important part of the construction and modernization of engineering systems. Not only the installation technology, but also further operation depends on the selected material. Metal, low -pressure polyethylene (PND) and polyvinyl chloride (PVC) are one of the most popular options. Each of them has its own advantages, nuances and restrictions. In this article we will figure out how to correctly mount pipelines from different materials and what to pay attention to.

Characteristics and areas of the use of metal pipes

Metal pipes remain in demand where high strength and resistance to extreme conditions are needed. Most often, steel, stainless and copper options are used. Each species has its own characteristics that affect installation.

Steel pipes are suitable for systems with high pressure and temperatures. They are often used in industry, heat supply, oil and gas sector. Installation is usually carried out by welding — this provides a reliable connection. Flang compounds are also used to quickly dismantle the site if necessary. It is important to carefully prepare the welding places: clean from rust, degrease and withstand technological pauses.

Stainless steel is used where corrosion resistance is required, for example, in the food industry or during the transportation of aggressive media. Installation can require more thorough preparation of the surface and use of special welding materials. Copper pipes are popular in water supply and heating systems due to their plasticity and anti -corrosion properties. For installation, copper is often connected by soldering, which requires accuracy and certain skills.

Installation of low -pressure polyethylene pipes (PND)

PND pipes are valued for flexibility, resistance to chemicals and a long service life. They are widely used in water supply, sewage and gas supply systems. Installation of these pipes has its own characteristics.

The main connection method is thermal carrier. This is a process in which the ends of the pipes are heated and connected under pressure, creating a monolithic compound. In addition, electric welding and fittings with couplings are used. Thermal and electric welding require special equipment and qualified specialists. Before welding, it is necessary to thoroughly clean the surface, properly prepare the pipes in length and diameter to avoid defects.

PND pupils are easily bend, which allows you to bypass obstacles without a large number of fittings. During installation, it is important to take into account temperature expansion and give pipes the ability to move freely. For installation in cold conditions, special technologies are used, since the material becomes less elastic.

Features of installing pipe from polyvinyl chloride (PVC)

PVC is an easy and inexpensive material, widely used in cold water supply systems, sewage and ventilation. Its installation is simpler than that of metal or PND, but also requires attention.

The main compound methods are adhesive, bell -shaped and compression fittings. Adhesive compounds provide tightness, but require accuracy and proper surface preparation. Falls allow you to quickly assemble a system without glue, it is convenient to use them when repairing. Compression fittings are used where temporary installation or the possibility of quick replacement is needed.

PVC pipes do not tolerate high temperatures and mechanical loads, so the installation must be performed so as to avoid excess stresses. In addition, the material is sensitive to ultraviolet, therefore, during external works, the pipes are protected by paint or placed in protective covers.

Comparative analysis of the installation of pipes from different materials

Each material requires an individual approach, and a universal solution does not exist here. The metal guarantees strength and durability, but the installation of pipelines https://www.truby-vrn.ru/montazh-truboproprovodov More labor -intensive and costly. PND is easier in work, has high chemical resistance and flexibility, but needs accuracy when welding and taking into account temperature extensions. PVC is a budget option with simple installation, but limited by operating conditions.

When choosing material and installation technology, it is important to consider operating conditions, reliability requirements and project budget. Often at one object they combine different types of pipes, choosing the optimal solution for each part of the system.

General recommendations for the preparation and control of quality installation

The success of installation largely depends on the preparation. It is important to carefully prepare the route, remove the pollution, properly store pipes and fittings. The use of a quality tool and compliance with the technology guarantee the reliability of the connections.

After installation, tests for tightness are carried out — pressure or vacuum. The check is carried out using special devices and visual control. High -quality installation requires the participation of experienced specialists and constant technical supervision.

Thus, the understanding of the features of each material and the correct approach to installation allow you to create reliable and durable pipeline systems that meet the requirements of modern industrial and household objects.

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