Polyvinylchloride pipes: installation features, characteristics and reviews

Polyvinyl chloride pipes, due to their low weight and a host of other technical characteristics, are one of the best solutions for laying systems for different purposes. The installation work is not accompanied by difficulties, but it is necessary to know what features the PVC pipe has. Among the additional features of the products described, it should be noted:

• Long service life;
• Affordable cost;
• Low weight;
• Simplicity of installation.

A small mass allows for installation without the use of special fasteners. In addition, an expensive tool is not needed, the pipeline can be laid on its own, while saving its funds. As one of the significant advantages, it should be noted that there are no drawbacks that are inherent in cast iron and metal pipes.

That is why these pipes are increasingly used in many areas of human activity, taking out products from other materials. After all, they are more durable, do not provide for complex and expensive maintenance, and they can be packed with minimal costs.

Specifications

Polyvinyl chloride pipes have outstanding operational features. They are characterized by high ring stiffness, due to which products are able to undergo internal pressure up to 120 atmospheres. To the temperature deformation, the pipes are extremely stable. When heated, the pipe lengthens only by 5% of the original volume. As for frost resistance, PVC is not so resistant to such impacts. Therefore, the laying of pipelines from this material must be accompanied by thermal insulation.

The pipe must not be cooled below -15 ° C. Polyvinyl chloride pipes are not so good thermal resistance. The material begins to lose its stiffness when exposed to temperatures above 78 ° C. The outer and inner surfaces have minimal roughness, this prevents the silting of the pipeline. The structural material may have rather impressive translucence. You can meet a transparent PVC pipe on sale, however in most cases the products are delivered in a painted form. But even in this condition, polyvinyl chloride is able to resist ultraviolet exposure better than other varieties of plastic.

Water when transported through PVC pipes does not change its properties. This indicates that this type of communication can be used for pumping not only technical, but also drinking water. Among the main advantages of such pipes can be noted inertia to the transported medium and high annular rigidity, which allows you to lay high pressure pipelines.

As for hot water systems, PVC can not be used in them, as the pipeline's temperature limit is only 40 ° C. Whereas in non-pressure systems, pipes require other advantages, among them, the minimum wall thickness and the high smoothness of the inner surface should be distinguished. As for the thickness, it can vary between 1.5 and 6 mm. These properties provide the possibility of laying a sewer system of impressive length. As a result, it is possible to obtain systems with a small cross-section of the pipeline, which are capable of removing a significant amount of effluent.

Some characteristics of non-pressure polyvinyl chloride pipes

Non-pressure polyvinylchloride pipes can be stacked and connected together by means of O-rings. This method of installation is acceptable for external and internal systems. Non-pressure pipes have a thickened bell at one end, the diameter of which can vary from 63 to 315 mm. Such pipelines can be operated at a maximum working pressure of 0.63 MPa. However, the pipe itself can undergo up to 20 MPa.

Characteristics of pressure pipes made of polyvinyl chloride

Polyvinyl chloride PVC pipes can also be pressurized. They have the ability to undergo significant pressure, so for the assembly of pipelines used cool products. They resemble the socket, but at their end there is a special bulge in the form of a bell.

The diameter of the pressure-type polyvinyl chloride pipe can vary from 10 to 90 mm. In accordance with GOST, 11 original sizes can be counted. The maximum operating pressure is 2 MPa. If this value is exceeded, the glue seam can not cope with the load. On sale it is possible to meet also a pipe without a bell, it is used at assembly of system of following kinds of fittings:

• Sealing;
• Threaded;
• Glutinous.

The diameter of smooth pipes varies from 10 to 315 mm. Such products can be used not only in pressure, but also in non-pressure systems.

Corrugated PVC pipes: Properties

PVC corrugated pipe has the ability to self-extinguish, this is a priority, which is one of the important when laying electrical wiring. The pipe does not burn, but melts and smoldering, completely damps and stops fire. Such pipes are durable, they are resistant to cracking by the moisture-repellent surface, which does not undergo corrosion, does not lose its properties and does not dry out during the whole service life.

Electrotechnical corrugated PVC pipes are thermoplastic. At temperature differences, they respond minimally. The operating temperature range can vary from -20 to +80 ° C. With regard to installation, it must be done at a temperature of -5 to +60 ° C. Among other things, polyvinyl chloride acts as a dielectric, which indicates its insulating ability.

Mounting Features

The pressure pipe starts from the source and ends with a crane. The pressureless pipeline initially has a PVC-type siphon, while in the end there is a septic tank buried in the ground. To connect the septic tank and siphon, it is necessary to equip a winding line, which will include fittings and pipes. The installation process can be carried out using one of three technologies. The first involves the use of the bell, the second - cold welding, while the third - threaded fittings.

Features of installation of sewer pipes from PVC

Pipe sewer polyvinyl chloride is stacked by a certain technology. In the first stage, the elements must be adjusted to each other and check whether the slopes and angles match. Next, the markup is done so as not to get confused in a large number of parts. Elements are interconnected, it is important at this stage to check that the pipe enters the bell to 2/3 without effort.

For tightness joints are glued together with a special compound. In order to increase adhesion, the interfaces should be roughened. Once the glue is applied, you can put on the fitting. After completing the installation work, you need to check the system for leaks. If a leak is not detected, then the installation work was carried out successfully.

Assemblage into the bell

Pipes made of polyvinylchloride (GOST 51613-2000) can be assembled into the socket. For a T-piece, one branch to the other requires a tee fitting. Insert the O-ring into the socket and install the smooth end of the pipe into the sealing flare. The ring will hold the smooth part and seal the joint.

Cold Weld Assembly

Installation with cold welding can be practiced when laying the pipeline, when it is necessary to provide an angled mating or tie-in. If in the latter case a reinforced pipe is used, then in the first one you can do with glue fittings and smooth pipes.

Assembly using glue is as follows. At the first stage, it is necessary to cut the butt and perform a calibration, that is, to clean and remove the burrs. The master should check the depth of immersion of the smooth end with the subsequent marking.

After that, the outer surface of the smooth end is treated with a solvent, and the junction site is cleaned. With the inner surface of the fitting and bell, a similar action is necessary. As soon as cleaning is carried out, a special glue must be applied to the surface of the fitting and the pipe, which must cover the inner surface and the marked area. At the final stage, the pipe must be pressed into the socket or fitting to the depth marker, and then rotated around the axis, this will distribute the adhesive evenly.

Conclusion

If you decide to purchase a PVC pipe, the price of this product should interest you. For example, a corrugated tube for building electrical wiring can be purchased for 10.67 rubles. Per meter. In this case, we are talking about the product, whose diameter is 25 mm. The cable fire-resistant line from the corrugated PVC pipe will cost the consumer 16,73 rubles. Per meter. But a light rigid pipe for electrical wiring you will get for 17.15 rubles. Per meter.

Fire-resistant cable line, which is characterized by low weight and rigidity, will cost 26.89 rubles. Per meter. Its diameter is 25 mm. Fire resistance corresponds to classes E60-E90. You can buy the pipe for wiring in the package - the bay (25 m). The product has a probe, and the pipe diameter is 25 mm. You can buy a PVC pipe of this type for 333.38 rubles. For packing.

Customer feedback suggests that the advantages of PVC pipes are much greater than the disadvantages. They are great for heating, sewerage, etc. Consumers who purchased PVC pipes did not regret their choice.