To date, any construction store is replete with a huge range of building materials that can be used in the construction of water supply and heating systems, as well as their periodic replacement. However, products made of polyvinyl chloride are the most common raw material, due to their resistance to aggressive substances. To properly do the installation of PVC pipes with your own hands, you need to take into account the properties of the material and a number of important features when connecting elements.
The main advantages of PVC are:
- resistance to chemicals and environmental factors;
- ideally smooth surfaces of products exclude formations of growths, blockages and other deposits;
- A wide range of components allows you to build any design of the pipeline;
- resistance to corrosion and premature failure;
- huge period of operation;
- ease of installation;
- low heat conductivity;
- small specific weight and coefficient of combustibility;
- tight connection of pipes provides for use on floating soils.
- restrictions on temperature;
- availability of special fittings.
Assembling PVC communications
In general, the installation of plastic pipes is a combination of individual elements of PVC, fittings and components in a single sealed network. It is implemented through three technologies:
- push-fit method;
- method of "cold welding";
- by using special couplings.
Installation using the first method in most cases is used in the construction of sewage systems, since it is the simplest and provides for the usual fixing of the end of the connecting pipe in a rubber gasket another.
The second method is to use a special chemical composition that ensures reliable contact of all elements. The third method is operated by connecting pipes of different nature, for example, from metal and polymers.
The preparatory work is an extremely important procedure, which provides for a clear organization of actions and the availability of all the necessary tools. The first step is to create an approximate scheme that fully reflects the number of fittings, pipe sizes and their number. Before cutting PVC pipes for adhesive bonding, preliminary measurements should be carried out on a dry surface. The ends of the connecting elements must be cleaned and degreased. Cutting is carried out by means of an ordinary hacksaw or a special cutter. Do not forget that the fixation of pipes is ensured with the help of special brackets attached to the wall.
In order for the cut to turn out even and pressurized, it is worthwhile to pre-outline the pipe in the place of the future cut. Cutting is carried out strictly at an angle of 90 °. The remaining irregularities are cleaned with a knife and sanding paper.
The connecting pipe must fit into the fitting device no less than 2/3. Then the cut points should be cleaned with a cleaner, which not only removes all the dirt from the edges, but also softens the future attachment point. The inner space of the fitting and the end of the pipe are covered with a small layer of glue, then tightly clamped for 1 minute. At the junction of the elements should form a uniform adhesive ring, which should be cleaned with a dry cloth.
Installation of sewage
Having finished with all the preparatory activities, it is necessary to make the installation of the future design. During the construction of sewage all the work is carried out from the risers to the plumbing fixtures. The connection of sewer pipes with fittings is carried out by simply fixing a piece of product in a rubber gasket of a fastening device. The main thing - to insert the pipe without bevel until it stops. Loose contact may subsequently lead to an unpleasant odor.
It will not be superfluous to check the location of the future joint and the rubber layer for dirt and dust before performing this procedure. To ensure a more reliable connection, it is necessary to lubricate the end of the segment to be attached and the elastic of the fitting with soapy water or glycerin grease.
After the basic communication is ready, it is worthwhile to start connecting all sanitary fixtures, not forgetting to equip sinks and bathrooms with siphons. The next major step is to test the system for tightness. In this situation, it is necessary to turn on all the plumbing in the house and check all connections for leaks. In addition, you should see how the structure will behave in critical situations - type a bucket of water and drastically pour it into the sink or washbasin. If there is no moisture on the floor, it means that the work was carried out efficiently and effectively, if there are leaks, then the “problem” areas should be dismantled and re-fixed using different adhesive compositions. Next, repeat the test.
Installation of water supply
Any water supply system due to high pressure, so for the installation of water pipes will require the use of a special welding machine (ironing). Having finished with all the preparatory activities, we proceed to the assembly of the whole structure, which, as when arranging the sewage system, should start from the riser. Before using welding equipment, be sure to read the attached technical documentation. Depending on the power of the heating element, the heating time of the connecting elements may vary.
After the heater is ready for use, insert the connecting pipe and fitting from different sides into the heated nozzle and wait for about 15–20 seconds. Then carefully remove them from the device and immediately insert them into each other, while observing the required connecting corners. Then in this position it is worthwhile to fix for 10–15 seconds for the plastic elements to grasp. The resulting compound will be effective for a long time due to the fact that the structure of the two components will become unified.
In no case do not neglect the precautionary measures: protective goggles and gloves are supplied with the welding apparatus. The slightest contact with the heating element can cause severe burns.
Financial benefits from the use of PVC pipes can be traced at almost every stage of independent construction - from planning to launch. The use of this material will allow to avoid calculations of transient coefficients at the stage of arranging a metal pipeline. During operation, such communications are unpretentious, because they do not require preventive maintenance and additional staining. However, the material is environmentally safe, which allows it to be laid in the ground, thereby accelerating the launch of the water supply system.
This video shows the adhesive method of joining PVC pipes: