CPVC pipe began to produce even around 50 years ago. In those years it was used in the aerospace industry. Not long ago, the product, which is used for the production of chlorinated polyvinyl chloride, steel demand for laying pipelines. It is important to note that they are suitable for hot and cold water. In Russia similar products made of PVC began to be manufactured in 2008 alone. What types there are and where to find the application - in this article.
Features CPVC products
Such products differ significantly from the already familiar PVC pipes. PVC used in the working fluid temperature is not more than 55 degrees Celsius when the CPVC can withstand up to 95 degrees. At the same time have other important advantages:
- Technology "DIY", thanks to which every newcomer to handle the assembly of products. By the way, for there is no need to use special soldering irons, welding machines and other expensive tools. Products do not require additional staining, because in itself it has an attractive appearance. Method activated "cold weld" To assemble the structural elements. It is characterized by using a special adhesive that dissolves the surface elements. If glued to each other element 2 is formed rugged monolithic structure;
- Hygienic safety. reliable and high quality material that will not cause the spread of bacteria and other microbes is used for production of CPVC products. Inside the pipes will not accumulate sediment, they are not afraid of corrosion processes. Based on the quality of the certificates can be concluded that the product is completely safe for humans;
- Resistance to chemicals. CPVC pipes are perfectly proven in terms of operation - they are not afraid of a variety of chemical elements. The products are widely used to transport not only water but also salts, sulfur, phosphoric acid, fat and oil, oil and mercury. Products do not affect the liquid passing over them - the taste, color and chemical composition remains unchanged. The pipes can be laid in the ground, as they are not afraid of trace elements;
- Fire resistance. CPVC pipes are - flammability, as required for their combustion temperature 433 degrees Celsius;
- Thermal expansion. The material is characterized by a low coefficient of linear expansion. Of course, during the operation of possible thermal expansion, so it is advisable to neutralize internal stresses through the movable and stationary holders. The unique properties of CPVC products allow to lay out it in concrete and under the plaster. Due to its low coefficient of linear expansion of the material is particularly relevant in the monolithic housing construction. In addition, the communication may be routed into the cavities and voids present in concrete and masonry structures, with further filling solution;
- Resistance to ultraviolet rays. Among all the varieties of plastic only CPVC withstands ultraviolet. Based on this information begs the conclusion - the products are suitable for open laying (the walls). A resistance appears due to the addition of the titanium dioxide.
Interesting! At the CPVC product life, tend to be significantly higher compared with the hardware. Also reduced spending on the repair of communications. It is caused by the fact that inside the pipes is not accumulated sediment from the liquid, which is not the metal counterparts. In addition, the pipes are not afraid of harsh chemicals.
Chlorinated polyvinyl chloride is a very durable, tough material that is ideal for the installation of risers. Compared with many existing types of plastic CPVC later operation no slack for many years.
The table below shows the basic dimensions and operating parameters of the systems PVC and CPVC.
Where used CPVC-products
Fields of application of such pipes extensive: starting aeronautical construction and large-scale industry, interested in the most robust communications and ending with the housing, even low-rise.
This is caused by easy installation: to connect a chlorinated plastic does not have to use expensive equipment and sophisticated tools. Suitable 'cold method ", which does not require soldering.
The most relevant CPVC pipe-heating: by them can easily flow water temperature to 95 degrees Celsius. System collected using such articles does not need compensating node.
On the labeling of products displayed, starting from which it is possible to understand why it fits:
- PN 10 - only for the cold environment;
- PN 16 - cold and hot (up to 70 degrees) carriers;
- PN 25 - for hot water supply and sewerage (+ 90 degrees).
If it is necessary to create electricity for aggressive media, such as nitric acid, chlorine, hydrogen peroxide, etc., optimal tube chlorinated plastic. Even if CPVC site will be in operation about 50 years, its inner walls will remain as new.
High fire properties of the material allow its use not only in standard construction, but also for the construction of unique objects. For example, in China using CPVC created a system of communications at Disneyland. Another attraction - Madame Tussaud's and the Royal Opera Palace in London.
When CPVC systems were first introduced in the territory of Russia, customers pay direct attention to the benefits of this modern technology - it is simple, easy and quick to install, reliable, durable, and has a neat appearance view. German communication CPVC were installed in Sheremetyevo-1 terminal. The customer in the first place have attracted high fire properties of the product. An important point in the building - the speed of the work. In this case, the applied adhesive bonding technique, enabling a complete record time with the object.
CPVC installation features, the pipeline
Producers initially, even in commercials, provided that such communication may be collected independently. If we consider the practical side, it works as follows.
prefabrication
First you need to be reserved by the CPVC-products and relevant fittings. Pipes are selected by the meter, and fittings - depending on the number of joints and angular fillets.
The next step - counting support surfaces for future pipeline. Every 25 - 50 cm is necessary to make the fasteners.
Next is cutting the pipe at the desired size. If necessary, buy more different fittings: angles, tees and other branch out and valves.
Product itself cut a special cutter or regular hacksaw.
joint assembly
The assembly procedure is performed using a special adhesive for CPVC. For this purpose, glue is smeared inside of the fitting part and the outer pipe. No need to wait, the product is immediately inserted into the fitting, then it should be along the axis of the crank. It is required to distribute the adhesive over the entire surface of the pipe.
the procedure is repeated after 20 seconds, but this time on the other side of the fitting. During this time, the adhesive joint has time to dry. As can be seen, the work of the power of even a housewife.
The only thing that may be difficult - you need to choose the right adhesive is suitable for a specific pipe. It is better if all products are owned by the same brand. In fact, the adhesive is the same as CPVC, just melted in the solvent.
Note! Before you begin to stick together, the product is necessary to get rid of debris and burrs, which end with a file is processed. If we neglect this issue, any burrs can cause depressurization of the joint.
finishing work
Gasket and assembly of communication is considered complete after the final quality check. For this purpose, the system is connected to the valve and run water. With proper operation of a leak will not occur.
conclusion
In modern building dominated by monolithic building construction, prefabricated and affordable housing, built with the help of simple but reliable technology. It should be available to the system at the same time meet modern safety requirements. One such decision was discussed in the article - communication of chlorinated polyvinyl chloride. In the Russian market among the full range of plastics, this material compares favorably with ease of installation, design and high durability. Meanwhile, the fire safety authorities continue to increase the demands on the materials used and CPVC fully complies.