All the nuances of plastic sewer pipes

An alternative to traditional metal pipes was plastic pipes for sewage. Different chemical elements can be taken as the basis for their manufacture: polypropylene, polybutylene, polyvinyl chloride, polyethylene. The service life of such pipes is not limited under the influence of aggressive stockpiles, mixed domestic and industrial effluents.Lightweight pipes made of chemical components are easy to install, do not require the use of expensive gas or electric welding.

Plastic sewer pipes are increasingly replacing their cast-iron counterparts

Basic characteristics of plastic pipes

Thanks to the ideally smooth surface inside, sewer plastic pipes are very rarely clogged, resistant to corrosion, and easily processed with simple tools. Elements of sewer pipelines are glued together using special glue, which is produced by some pipe manufacturing plants.

Helpful advice! To determine the tightness, it is recommended to swipe along the edges with your finger - this will help to remove all existing burrs, which in the future may become a place of clogging or leakage.

Basic characteristics plastic pipes for sewage, which determine their application:

• withstand short-term temperature differences;
• good dielectrics, therefore, do not allow stray currents to be present;
• structural strength;
• have increased throughput due to the smoothness of the inner walls;
• have a long and reliable service life;
• used successfully in individual houses, and in apartments, and in cottages.

Throughput plastic sewer pipes happens different. If before pipeline replacement An iron pipe with a diameter of 50 mm was used on the site, then productivity will not decrease if we take a pipe diameter of plastic of 40 mm.

Silent sewer pipes and fittings

Types of Plastic Pipes

There are different types of modern plastic pipes for sewage:

• Polyethylene - most practical for general use. Working pressure: 2.5-16 atm. Available with diameters from 10 to 1000 mm. They have low heat resistance, because of which they are not recommended for use in systems where there is a constant drain of hot water.
• PVC - have successfully established themselves in sewage systems. Withstand pressure within 6 - 46 atm. Able to withstand temperatures up to 90 degrees. Available in different diameters ranging from 16 mm to 500 mm. Pipes of this type are used in different wiring systems, especially if strict service life requirements are set.
• Metal polymer - The most durable and durable of all. They are easy to connect, bend and cut. Operating temperature varies between 40-95 degrees. They consist of a multilayer polyethylene construction with a thin layer of aluminum.
• Polypropylene - found in sewer systems, as well as in laying cold and hot water supply. Working pressure polypropylene pipes is at around 20 atm. Starting from 16 mm and ending with 110 mm - this is the permissible diameter of such pipes.

Helpful advice! Lay a plastic pipe for outdoor sewage it is necessary without stresses, therefore if it is rational to use fittings or adapters, then they need to be used.

Each plastic pipe must be labeled

Correct choice of sewer pipe diameter

Depending on the purpose of the sewer pipeline, the corresponding diameter is also selected, the correct choice of which must be approached responsibly, since the service life directly depends on it. In the sewer plastic pipes used with different diameters:

• the outlet from the toilet should be larger in diameter (100-110 mm) compared with the diameter of the pipes connected to the bath (a corrugated pipe is often used for this purpose) so that solid waste does not clog the sewer;
• bends for sinks, bathrooms and sinks can be in the range of 40-50 mm;
• the diameter of the outer pipe does not need to be increased at the outlet, even if a large volume of drains is planned;
• It is necessary to select a diameter for plumbing fixtures so that a small gap forms during the drain;
• selection of all diameters according to the rules can be made in accordance with SNiP 2.04.01-8.

Different types of sewer pipes made of plastic are distinguished by the corresponding marking, which also indicates the maximum diameters.

Good to know! The marking is affixed along the pipe through each meter and also indicates the wall thickness, manufacturer name, quality standard, material.

U-shaped drain siphon

Plastic Pipe Additions

It is impossible to create a practical sewer from plastic pipes without the use of additional elements for joints and different junctions. It is important to observe suitable diameters both for the pipes themselves and for additional elements. For different sizes, you can pick up such additions:

• U-shaped siphons - designed to form a water seal that does not release unpleasant odors throughout the room;
• 90 degree knee designed to connect vertical and horizontal branches;
• couplings connect the diameters of the same sewer pipes;
• hatches put in areas where blockages can occur - they make it easy clean problem area of ​​the outer or inner pipe;
• sleeve connects sewer pipes with a smaller diameter;
• Y fittings help to make the turn of the outer or other pipe by 45 degrees, there are special fittings that rotate sections 90 degrees.

Important! In order to hermetically join the sewer pipes to form a coherent structure, you need to connect them qualitatively - the accident limit directly depends on this.

For the installation of sewage, various fittings are used.

Competent installation

All plastic pipes for sewage must be selected carefully, taking into account the features of operation and the required service life. Do not forget to use plumbing accessories that avoid clogging. You can choose the types of modern plastic pipes for sewage depending on the technical characteristics and the brand of the manufacturer. They can be used for an external or internal sewer system - different installation requirements are presented to each of them.

Recommend to produce pipe connections for plumbing plastic sewer bell-shaped way and carry it out taking into account important features:

• sewer pipes of a suitable working diameter are selected and their fitting begins;
• burrs are removed from the inside, and the chamfer is removed from the outside, as these irregularities will collect all contaminants;
• pipes are recommended to be laid with a slight slope of several centimeters so that the water does not stagnate;
• if the pipe joint occurs with force, then special lubrication must be used;
• in order to fix sewer pipes made of plastic, it is not necessary to use rigid steel suspensions, clamps and latches will be sufficient in accordance with the diameter of the pipes;
• the tightness of the connection will provide an o-ring, which should be in the socket.

Corrugated pipes are more resistant to mechanical damage than conventional

Use of corrugated pipes for perfect sewage

Different types of pipelines differ in the maximum service life of plastic sewer pipes, which cannot be precisely determined, since it is located in rather large limits. Well established in this case. corrugated sewer pipe (maybe outdoor).The properties of a corrugated pipe are significantly different from polymer and metal analogues - it has a high resistance to abrasion and is resistant to mechanical damage.

Helpful advice! Corrugated pipe has high strength and excellent flexibility, so it can be used in configurations with sharp turns and a large number of bends.

 In the laying of external sewage corrugated pipe became a real breakthrough due to the fact that it is made of high density polypropylene. Use such pipes not only for sewer gaskets, but also for other domestic purposes. The corrugated plastic sewer pipe has a different working diameter, which starts from 110 mm and can end up to 800 mm, therefore it is so successfully used in outdoor installation at different depths.