Pvc fittings for sewage - the main types of components and

15-09-2018
Pipes

Plastic pipes have appeared relatively recently, but have already gained immense popularity among specialists due to a number of undeniable advantages. Accordingly, fittings for PVC sewer pipes are widely demanded, since it is with their help that the system is assembled, and bends, joints and turns are arranged. Fittings largely determine the reliability of communications, because most of the problems arise precisely at the joints and turns.

In the photo: on sale you can find a variety of elements.

The main advantages of plastic structures

A couple of decades ago, the vast majority of sewage systems were made of cast iron, the process was rather complicated, as the pipes and fittings were very heavy, and the connection had to be applied by welding or caulking, which implied the presence of certain equipment and skills.

Pipes and fittings for PVC sewage have a number of undeniable advantages, which led to their popularity and demand in our days:

Durability The material used for the production of products is resistant to ultraviolet radiation, temperature extremes, high humidity, aggressive chemical attack and other adverse factors. Due to this, the lifetime of the system is 30-40, and in some cases 50 years.
Easy installation You do not need special instructions for assembling the system and welding equipment. The works resemble the assembly of the designer, and it is important to do all the mates very carefully so that the elements do not deform and the sealing gums do not move, because they are responsible for the tightness of the connections
Low price This group of products is not only convenient in operation, but also belongs to the budget segment. Plastic pipes and fittings are available to the widest range of customers, and thanks to the opportunity to carry out the work themselves, you can save considerable funds on installation work
Low weight PVC products weigh so little that they can be loaded and transported with their own hands, even by women. This simplifies transportation and significantly reduces the load on building structures and partitions, which is also important
The diagram shows the most common and widely used PVC sewer fittings and their location in the system

Tip! All the advantages discussed above relate only to products made from high-quality materials and in accordance with the technological process. Therefore, it is important to always require from the seller a document confirming the quality.

Features of product selection

It is very important to conduct preparatory activities, which include:

  • Measurements to calculate the required number of pipes. This will allow not to get extra items.
  • Determination of optimal diameters for all pipeline sections. The most commonly used are two sizes - 50 and 110 mm.
  • Drawing up a project to accurately calculate the required number of fittings. This greatly simplifies the calculation of the required number of each type of elements.
It is best to make a separate project for each room and outdoor communications (if available)

Types of fittings

All products can be divided into several basic types depending on their purpose:

  • Crosses are designed to connect various branches to the main highway. They can be one and two planar, the angle of junction and the diameter of the outlets can also be different - you can attach both pipes of the same or different diameters, it all depends on the system.
Crosses can have a variety of configurations.
  • Tees for sewage systems also belong to widespread elements and represent a structure in which in the horizontal or vertical plane one of the pipes connects with the other. Again, the diameter of the products may differ, as well as the angle of connection, which allows you to choose PVC fittings on the sewage system of any complexity.
There are many configurations of tees.
  • Couplings are used to connect two pipes to each other and can be either full bore or with stops so that the ends of the elements are fixed in a certain position. Naturally, their diameter also differs depending on the size of the main pipe.
Couplings can also vary in length, which allows you to adjust the position of pipes
  • Reductions are elements that represent an adapter from one pipe diameter to another, if there are such places in the system, then you cannot do without this node.
Reduction allows you to go from one diameter to another
  • Revisions with a lid are a mandatory element of the system, since when sewer blockages occur, it is through them that communications are cleaned.
Audits are an important element of the system
  • Taps are used in places where the direction of the pipeline is changed, they may have different angles: 120, 90, 45, 30 degrees.
Bend is selected in accordance with the angle, which changes the direction of the pipeline

Product Selection Criteria

It is very important to choose high-quality products, for this you should pay attention to the following factors:

  • The surface of the plastic should be smooth, without flaws and pores.
  • Sealing gum should be elastic and sit tight in the seats.
  • The walls of the products must be sufficiently thick, they must be resistant to deformation.
  • The dimensions of the PVC sewer fittings must match the size of the pipes.

Tip! To improve the strength of the compounds, they can be further sealed with sanitary silicone.

Conclusion

Fittings are no less important than the main pipes, because they are responsible for the reliability of all connections in the system. The video in this article will help to understand the question even better.

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