How to choose pvc sewer pipes

The main purpose of the PVC sewer pipe is the removal and collection of waste with a temporary temperature of up to + 95 ° C and with a constant temperature of + 70 ° C. If in the process of use to comply with this temperature, then their lifespan can reach up to fifty years. Moreover, the high resistance of PVC plastic to aggressive media can significantly expand their scope, respectively, this factor contributes to a long service life. PVC sewer pipes have a large number of advantages, for this reason they are used for the arrangement of engineering networks.

Specifications

The following positive technical characteristics can be distinguished:

• Long service life. PVC is not subject to corrosion.
• Low weight. For fixing the pipes there is no need to use complex mechanisms.
• Speed ​​of installation. Their installation can be carried out independently. Moreover, there is no need to use expensive equipment, and the connection system allows for excellent tightness.
• Cost We should also mention about their availability in the price. Unlike cast iron or metal pipes, they have a lower price level.
• Non-toxic. Used plastic is completely safe for the environment and people who live in a house with a sewage system made of PVC pipes.

Basic classification

In this question, there are two main classifications: their location and working environment parameters. Now consider each separately.

The location of PVC pipes can be external and internal.

Outdoor. Have rather wide application for external execution. For example, using them, it is possible to manufacture sewer systems that will have a large flow area, storm, sewer and culvert systems of buildings. This became possible due to an increase in the cross section of the pipe, as well as due to a special plastic in their manufacture.

Internal. In this case, the pipes are used to discharge wastewater from the premises. Pipes differ in the parameters of the working environment, such as pressure, non-pressure and corrugated.

Pressure head. Such pipes are used in systems that provide for the pressure of the working medium. On the basis of performance, pressure pipes can withstand more than 10 atmospheres.

Free-flow. Accordingly, pressureless pipes are used in systems where pressure will not build up. For example, non-pressure polyvinyl chloride pipes are used in systems where the fluid moves by gravity at a speed of no more than 8 m / s.

Corrugated. This type of pipe is widely used in low-current and power systems of fluid motion. Due to its flexibility, it is possible to lay a pipeline in hard-to-reach places without using additional equipment.

Tip! The main purpose of PVC pipes is a working medium with non-aggressive liquid. If the output of oil, acid, oil products is required, then pipes shall be used. But before you buy, be sure to check with which environment they can be combined.

GOST

PVC GOST 1898-2001 has found its application in various fields of construction. They are used for the construction of sewage in cottages, apartment buildings and not only. It is especially necessary to comply with state standards when you need to install a simple and convenient sewage system. They also found their use in drainage, storm and sanitary-technical systems.

It is necessary to distinguish GOST PVC, otherwise it will lead to misuse. Moreover, such an approach will completely avoid failures in the work of communication and its complete exit from the working system. In order to apply them as correctly as possible, it is necessary to understand and know their physical and technical indicators. Then the created sewer system in any of its performance will serve for many years and, most importantly, without any disruptions in work.

The most commonly used pipe with a class of rigidity SN4. There is also a production option SN8. The most important thing to distinguish and understand that a particular class of rigidity of the pipe allows their use at the appropriate depth. If this is not taken into account, the PVC pipes can be deformed at a depth under the layer of soil, which will lead to undesirable consequences. Therefore, before installation, you need to decide for what purpose and where the pipes will be laid, because each class of pipes has its own tolerances.

Tip! Provided that GOST PVC pipes are fully complied with, then during the installation process ideal and tight connections will be formed. The correctness of the assembly will also affect this factor. It consists in using o-rings and an appropriate sealant during assembly.

Characteristics of length and other quantities

Consider the main characteristics:

• Diameter conditional passage. Most often, this indicator has the designation of control. It indicates the actual size of the inner diameter at the exact value or rounded. For designation, the unit is used in millimeters.
• Inner diameter. This indicator is necessary for the selection of fittings, and it is indicated on the marking of HP pipes.
• Outside diameter. The DN or DN is used to determine the nominal outer diameter.
• Length. Pipes having a smaller diameter, are made longer and are supplied in coils. If the diameter is large enough, the length of the pipes will not exceed six meters.
• Wall thickness. The ratio of both outer and inner diameter will depend on this indicator. Moreover, the working pressure that the PVC sewer pipe can withstand depends on the wall thickness.
• Weight. This indicator, in turn, depends on the previous one.

We considered the main parameters of the quantities used in the manufacture of PVC pipes. Now consider the main dimensions:

1. Used pipes for external sewerage are characterized by the following indicators: 110O - 160O mm, wall thickness from 3.2 - 3.6 mm, and length from 1 - 3 m.
2. As for the internal sewage system, they correspond to the following indicators: 110O mm, wall thickness 2.2 mm, and length from 1 to 3 meters.

Tip! If you buy fittings, namely bends, transitions, bends, tees and gearboxes, they also have differences in length, thickness and angle of bend, which is measured in degrees. Therefore, choosing pipes, pay attention to the performance of the fittings.

Tips

You should know:

1. Required outer and inner diameter of pipes.
2. The length of all communication.
3. The main parameters of the working environment.
4. Required strength.

Tip! When you choose sewer pipes, in addition pay attention and to GOST PVC. First of all, it should have appropriate labeling, quality assessment after the tests, as well as the original packaging.

With this approach, you will be able to purchase material that will have a high performance characteristic. Accordingly, the engineering system created by you will serve you for many years. If you find it difficult to choose pipes, then ask your questions in the comments to the article, our experts will provide you with recommendations!

Video

Watch the video about the recommendations of specialists in the selection of pipes for internal and external sewage systems: