Polypropylene pipes for water supply
The contents
The market of plastic materials grows every day. A significant sector of the total volume of the presented products is the pipeline system. The range of application is very wide. After examining the types of polypropylene pipes for water supply, the material properties, to implement in the future, the right choice will be much easier.
Characteristics polypropylene pipes ↑
When planning the installation of water supply system, attention should be paid to the properties of the material used. What are the main characteristics of polypropylene pipes? Among the advantages are the following features:
- Not exposed to corrosion processes. This helps to preserve the quality characteristics of the product for a long time.
- Resistance to the aggressive biochemical environment.
- Reliable operation in the winter frosts. Gaps in the elements of the polypropylene pipes, made of plastic, no.
- Quality insulation of noise and vibration. The movement of water in polypropylene tubes for others is almost imperceptible.
- When you use hot water energy savings is in the range of 10-20 % relative to the operation of metal products.
- Installation does not require significant financial costs, the connections are more reliable.
- The pressure loss hardly occurs.
- A wide range of fittings allows the installation of the water supply of any configuration.
- Environmental safety of the material.
When you also purchase a high-quality polypropylene pipes and accessories, observance of technological processes during the installation of water and proper maintenance, the life cycle exceeds 50 years.
The marking of products ↑
The use of pipes made of polypropylene in different spheres of economic activity determines the necessity to see with their clear markings for orientation in a wide range of products. Classification of products include several options. Feedstock polypropylene pipes are divided into four types:
- The basis of pipes, PPH is homopolyamide, high durability. Scope – cold water supply, piping for industrial use, ventilation system.
- The block copolymer is a starting material for pipes of the second type RRV. The scope is similar to the first type, in addition, exploited in floor heating systems.
- The abbreviation for PPR is evidence of belonging to the most common third type. The use in the production of randomshooter provides the ability to operate in cold and hot water supply, the installation of Underfloor heating and water heating.
- The main feature of products labeled with the PPs – it’s hard Flammability, are characterized by stability at temperatures up to +95onWith.
Colors of products:
- white;
- grey;
- green;
- black.
The first three have almost the same characteristics, the black color indicates additional UV protection. Polypropylene pipes are single layer and multilayer. In the reinforcement of the layered products used aluminum foil or fiberglass.
After the manufacturer by the first letter in the marking, determine the material of the pipe. The following figures indicate the outer diameter of the pipe, the range is from 10 to 1200 mm, and minimum wall thickness. The PN indicates the nominal pressure, the optimal value for long-term operation in the water system in the range of 10-25 bar.
In addition to the basic information on the products indicates the conformity to the technical regulations, the date of manufacture and other useful information.
Properties of reinforced pipes ↑
Along with multiple advantages, the operation of the polypropylene is fraught with certain difficulties. What are they? The material resistance to high temperatures very low: +140onWith sufficient softening, the guaranteed operating temperature without damage +95 onWith, depending on the feedstock, the figure may be even less. The combined effect of high temperature and pressure resistance of polypropylene is considerably lower than the influence for each individual factor. This leads to deformation of polypropylene products. To avoid problems of hot water can help reinforcement, creating a kind of frame, prevents elongation and expansion of the pipe. To date, manufacturers offer two versions of the reinforcement with the use of aluminum or fiberglass.
Aluminium ↑
Polypropylene pipes with aluminum reinforcement is of two types. In the first case, a kind of frame performs the function of the outer shell, and the second is located between layers of polypropylene. In this case, make sure you have protective frame can the study of slice products.
The essence of design lies in the adhesive compound aluminum foil with a thickness of 0.1-0.5 mm and polypropylene. The quality of the final product depends on the characteristics of the original materials. The desire to save may cause defective products that can eventually delaminate, causing significantly affected the strength of the water supply system.
Fiberglass ↑
The alternative, standing on a step above the previous option is fiberglass. Although the pipe consists of three layers: inside and outside the polypropylene, and fiberglass in the middle, overall it is a monolithic structure. Such a feature is formed in the manufacturing process when welding middle layer with outer and inner.
By glueing the fibers fiber with polypropylene layers and ensures that no deformation of pipes in the water system when heated. To determine the glass fibre reinforcement in the choice of polypropylene pipes is quite simple – cut products is clearly seen three layers, the middle one has a bright color. Color does not indicate any characteristics of the pipe, the manufacturer relies solely on its own preferences.
Features select material ↑
When you buy polypropylene pipes are guided by the key criteria for material selection:
- planned features of operation;
- cold or hot water supply.
Experts ‘ recommendations are as follows:
- Polypropylene products of white and grey are mainly designed for use in heating and water supply.
- The installation of water supply system is carried out using valves and polypropylene pipe fittings.
- To build the system you need fittings with bend angle of 45 and 90onWith valves, plugs and couplings.
- The process of the final installation involves the use of special welding machine, called a soldering iron for pipes.
It is very important to choose the correct diameter for the water system. In a private home by default, use the diameter of 20 mm. in the construction of a multistory building each stage corresponds to its size defined on the basis of an improved calculation of.
For the supply q, the house, the porch and plant the apartment has its own designed parameters. A priori, the size of the pipes increase proportionally to the increase in water consumption. For multi-family homes in the economic activity are used:
- the risers of the 5-storeyed dwelling – diameter 25 mm;
- for risers of the house, consisting of 9 or more floors, the diameter of the plastic pipe is 32 mm;
- inside the layout is similar to the houses of the private sector – 20 mm.
Table throughput depending on the diameter of the pipe is shown below:
When choosing polypropylene pipes for water supply give preference to products with reinforcement of fiberglass. Is the best combination of ease of operation, quality and material cost.