Sewer fittings are connecting auxiliary elements. You can not do without them in the arrangement of systems for the diversion of human waste products. With their help, the connection of parts, various bends is performed, as well as various manipulations are carried out aimed at creating a sound pipeline. Today, shaped fittings made of polymeric materials are very popular.
Installation of external or internal sewerage is not possible without the use of fittings
Content
Benefits
Currently, polyethylene, polybutylene, polypropylene, etc. are used as raw materials for the manufacture of sewage disposal systems, as well as fittings for sewer pipes. Their main advantages include:
- light weight. When installing the sewage system, this property is very important. The wizard will not have to exert excessive efforts to install the pipeline. In addition, an important factor is the ease of delivery;
- ease of installation. All parts of the sewage system are assembled manually without the use of gas or electric welding. Any homeowner can do the installation themselves. The most important thing is to strictly follow the rules for performing this procedure;
- variability. Modern industry produces a lot of types of fittings for sewer pipes. Such a variety allows the installation of a sewage disposal system of any complexity level;
- smooth surface. This factor significantly reduces the possibility of contamination or clogging of the pipeline lumen.
High demand for polymer pipes and shaped parts of sewage systems made of the same material is due to their resistance to detergents.
The smooth surface of the polymer pipes and fittings prevents frequent clogging of the sewer
Sewer elements made of polyvinyl chloride (PVC)
This material deserves a special discussion. It has been used for the production of sewer pipes since the middle of the last century. Moreover, for such a long service life, there were no serious comments on it from consumers and manufacturers.
Helpful advice! Nevertheless, before starting the installation of industrial untreated sewage disposal systems, PVC pipes should be checked for resistance to the effects of chemicals intended for transportation.
For the installation of PVC sewage disposal pipes, the use of shaped fittings is one of the mandatory requirements. After all, this material is absolutely not plastic, which is why it does not withstand strain loads. Therefore, operations such as pairing parts with compression of the diameter, insertion into a pre-drilled hole and angular joining by bending without fittings for PVC sewer pipes cannot be made.
This product is nothing more than a pipeline section ready for installation, already bent or compressed at the required angle. Using a socket connection, he joins the pipe and solves the problem of bending, branching or transition from one diameter to another. However, this installation method involves the purchase of connecting fittings. Therefore, without carrying out additional costs it is not enough.At the same time, installation on shaped fittings is the only opportunity to use the unique material polyvinyl chloride in the construction of sewage pipelines.
For the installation of sewage from PVC pipes, additional elements are required
As a result, the consumer, when choosing elements for creating a pressure-free sewage disposal system, prefers shaped for sewage PVC. In addition to the above advantages of polymer products, these products have the following advantages:
- durability. The service life of a properly mounted assembly is at least 40-50 years;
- low density. Due to this property, it is possible to attach a pipe with a diameter of 110 mm to a supporting surface with a collar using only one self-tapping screw;
- high level of durability. This characteristic directly affects the throughput of the sewer system, because it is allowed to use pipes with a wall thickness equal to 1.5-2% of the outer diameter.
Fashonina for internal and external sewerage
Parts for non-pressure PVC pipelines are divided into two groups: products for "external" use and products for "internal" use. Moreover, if the "internal" products must be installed exclusively indoors, then "external products can be used both in the house and outside.
Helpful information! From “external” analogues, “internal” PVC pipes differ in that their monolithic wall has the same thickness along the entire length and has less resistance to temperature loads (optimal operating mode is 0≤T 0C≤45). In addition, due to the lack of corrugated profile or reinforcing fibers, they can not be buried in the ground.
Pipes for home sewage are produced in a limited range. In order to focus the attention of the buyer on the fact that this is the inner pipe, such products are made of gray PVC. Their diameter is 50 or 110 millimeters, and the length is 1, 2, 3, 4 and 6 meters.
There are special pipes for external sewage and they differ from those designed for internal systems.
Fasonin for internal sewerage is usually divided into several types, each of which has its own purpose.
Classic clutch. This product is made in the form of a segment with two sockets and is designed to connect 2 pipes. Their smooth part is inserted into the bell couplings. The assortment of fittings for PVC sewer pipes of this type is synchronized with the assortment of standard pipes of any size.
Branch for angular interface. Such a shape is made in the form of a curved section of the pipeline. The bending angle can be equal to 15, 30, 45, 67 (this is an additional model of fittings for PVC sewer pipes and 90 degrees. One part of the branch is smooth, and at the other end there is a bell. However, two-bell products can also be found on sale.
Reduction. Fittings of this type are similar in appearance to the coupling. They are intended for pairing pipes with different diameters. Accordingly, the value of this parameter of the socket seat of the socket and the smooth part are different.
In addition to the usual (equidistant) tees for sewer pipes, combined ones are also available. They come with a union nut or with a female thread.
Tapping fitting allows connection to the sewer system without cutting the pipe
Tee tee or cross-piece for cross connection. Using these products solves the problem pipe fittings. Moreover, the cruciform variant is realized either in one plane or in mutually perpendicular planes. The ends of the tees for PVC sewer pipes and crosspieces are formed in the form of a smooth section or in the form of a bell. These products are used most often today, especially tees.Therefore, it will be useful to know that modern industry produces the following types of such fittings for PVC sewer pipes:
- straight tees 90 and 87 degrees;
- tees inclined with an angle of 45 °;
- equal bores. The internal sections of the device are the same;
- tees are multi-pass. The cross section of the middle part differs from the diameter of the ends.
Tee to perform pipe condition audit. The difference from the standard version of the tee for sewage is the presence on one of the branches of the T-shaped connection of the cover, of course, removable. This design allows you to periodically look inside the pipeline.
Check valve. This style has a special design. With the help of such a fitting, the direction of fluid flow in the pipe is regulated.
Important! Fittings must be installed taking into account their expansion during the transportation of wastewater. To do this, leave a gap of 1 mm.
Types of fittings for PVC pipes for sewerage installed outside the house, that is, distribution, shutoff and connecting fittings are almost the same as for external pipes. This product can be distinguished by its terracotta color.
In order for the sewage system to work for a long time and efficiently, in addition to the correct selection of parts, it is necessary to create the required slopes. This will ensure that sewage is drained by gravity. In addition, revisions should be set so that the installation step is sufficient for cleaning.
