Pipe pn20: features and their advantages

The polypropylene pipe PN 20 serves for installation of systems of cold and hot water supply with the greatest possible pressure of a working environment in 2 MPas. They can also be used for networks of “warm floors” and in industrial structures for pumping compressed air and chemical mixtures. Such pipelines can withstand the temperature of the internal environment to + 95 °.

Products are made from a popular variety of polypropylene, or rather, its random copolymer.

Material properties

When random copolymers were invented, this was a breakthrough in the field of plastics. The main advantage of this type of polymer is their excellent resistance to extreme temperatures, both negative and very high.

Products from this material appeared on the construction market relatively recently. However, it has become very popular, thanks to its excellent properties.

The advantages of this type of polypropylene

The popularity of the material stems from its unique mechanical and physical properties. Extruded elements from a statistical PP, that is, its random copolymer, are extremely reliable.

Below are the technical specifications of the PN20 pipe:

• excellent elasticity indicators;
• strength;
• low adhesion level;
• resistance to various types of corrosion;
• inertness (absence of destructive interaction) to chemically aggressive substances;
• impact resistance;
• low degree of thermal conductivity;
• good performance sound and vibration absorption.

The technical characteristics of the polypropylene pipe PN20 give this product optimum consumer qualities.

1. For the assembly of engineering systems from such products do not need to use expensive equipment. The temperature at which this polymer softens is +132 °. This makes it possible to create hermetic joints of the joints without the use of high-temperature type of welding.
2. Inertness to aggressive media and material resistance to corrosion, guarantee the absence of undesirable impurities in the transported substances.
3. The internal space of engineering systems from such elements does not overgrow with lime and salt deposits, since the material has low adhesion.

Note! The characteristics of PPR pipe PN20 are such that it has a low thermal conductivity coefficient. This circumstance reduces the heat loss during transportation of the coolant, which makes it possible to save money.

Scope of application

Polypropylene pipes have become an excellent alternative to metal counterparts. First of all - in terms of reliability, durability, ease of installation and ease of maintenance.

Choosing a type of this type of product, one should, first of all, take into account the following parameters

1. What is the working pressure of the pipe engineering system can withstand.
2. To what temperature of the internal environment of the network, as much as possible, they are adapted.

The use of all types of plastic pipes is regulated by SNiP No. 2.04.01 / 85.

1. The instruction indicates that when using them, the working temperature of the water in the hot water supply system should not be more than +75? For a short time, this figure may exceed +95 degrees.
2. At this temperature mode and pressure in the system of 2 MPa, the service life of pipes is 25 years. In networks for cold water, he is 50 years old.
3. If the operating pressure in the system is higher, the period of operation of the pipes is reduced.

How is the assembly of polypropylene pipelines

1. All varieties of mounting are available for the pipeline of random copolymer. It can be laid with your own hands in the open, bricked under the plaster or collected in a special channel or mine.
2. The only condition is that you can install engineering systems made of polypropylene at an ambient temperature of at least -10 degrees.

Note! The connection of the elements of the system is carried out, most often, using the method of diffusion welding. If it is necessary to join polypropylene pipes with metal analogues, transitional fittings are used.

Product diameters

Manufacturers of fittings and pipes produce PPN of different diameters. The table below shows the range of products.

Product labeling

Plastic pipes are labeled for the following qualities:

• the type and type of polymer;
• outer diameter;
• possible separation and the thickness of the walls.

So, if the product is marked as PP-32, it means that its nominal diameter is 32 mm. The characteristics of the FRP PN 20 pipe are encrypted in letters and numbers.

They say that the product made of polypropylene copolymer random is reinforced with fiberglass and has a diameter of 20 mm.

In addition to the voiced parameters, product labeling also indicates the temperature and pressure that are optimal for it.

Polypropylene pipe types

At the moment, pipes are manufactured from such varieties of polypropylene and additional materials:

• PP is ordinary polypropylene;
• FRP PN 20 pipe is fiber-reinforced plastic (fiber reinforced plastic);
• M-PP - products made of frost-resistant PP block copolymer;
• PP-R is a random polypropylene copolymer;
• PP-CR is a third type static copolymer of PP for heating and hot water supply systems;
• PP-RCT is a special kind of random copolymer PP, which has a hexagonal lattice structure, because of this, has the best characteristics.

Conclusion

Polypropylene products brand PN-20 is now in great demand. Its price is optimal, and the characteristics make it possible to equip the engineering networks of any type.

The video in this article contains a lot more information.