Non-pressure polypropylene pipes gost. Polypropylene sewer pipes: characteristics and installation. Advantages of using polypropylene pipes in external and internal sewerage

Sewerage in modern life takes on more and more diverse chemical composition liquids - means for cleaning, washing, and, of course, human waste. The smooth and fast passage of these masses is facilitated by the smooth inner surface polypropylene pipes. The unique properties of products made from this material and competent installation provide the house with cleanliness and the absence of unpleasant odors.

Polypropylene in our life

Due to its environmental friendliness, the versatile material is found in Everyday life at every step - containers, food bags, dry closets, car parts, pipes for various purposes. Products made of polypropylene are lightweight, durable and retain their aesthetic appeal for a long time.

Material that has not been exposed to ultraviolet light is recyclable, after which only 10% of the original properties are lost (therefore pipes are not made from recycled materials), while reducing the cost by 30%. The use of secondary polymers makes it possible to solve the problem of reduction and disposal of municipal solid waste.

Material characteristics

Now polypropylene pipes for sewage have become simply wildly popular in comparison with cast iron due to some properties:

hot water resistant up to 75–80 °C, which is especially appreciated by the owners washing machines;
due to low thermal conductivity, condensation does not form on the surface;
extreme lightness-1 p/m pipe 110x weighs almost 5 kg, which allows for loading / unloading, storage and installation on their own;
perfectly smooth inner surface prevents the formation of various kinds of deposits, so the diameter and speed of movement inside remain unchanged;
neutral to aggressive substances;
plastic- when water freezes, the walls of the pipeline expand, when thawing, they take on the same parameters;
dampen noise and vibration characteristic of metal pipelines;
not subject to corrosion.

Note!
Choose your toilet cleaner carefully.
For example, exceeding the concentration of nitric / sulfuric acid can not only damage the enamel of the toilet bowl, but also sewer polypropylene pipes.

The relative softness of polypropylene pipes allows them to be used, in addition to the house, also for laying in the ground. The necessary ring rigidity is given to them due to the external corrugated surface, the internal remains smooth - such reinforcement allows the pipeline to be buried to a depth of 0.7 to 2 m.

With a smooth inner surface for excellent flotation, slope can be kept to a minimum. As a result, the laying depth is reduced and, consequently, the cost earthworks especially on heavy soils.

The bottom of the trench is made of a sand cushion up to 20 cm thick, due to which, with significant dynamic loads the pipe is slightly bent. Double-layer pipelines are so “hardy” that they can even be located under freeways.

By adding a colored pigment to the material, the manufacturer visually indicated the scope of the product. So sewer pipes made of polypropylene for internal use are usually gray color, for outdoor - orange / terracotta.

The structural differences are as follows:

pipes for internal system smooth and connected into a whole by soldering;
pipes of external sewerage have a socket on one side, which determines the method of installation.

Pipe diameter value

In system internal drains pipes of generally accepted standards are used:

to washing machines, sinks and bathrooms with a diameter of 40–50 mm;
waste system from the toilet - 100 mm.

Such a discrepancy in diameters is quite justified - if, for example, only water leaves the bath, then dense fractions should pass through the toilet without hindrance. Due to this specificity, a certain amount of air is needed inside the pipeline, which is especially important for apartment buildings.

If the pipes are completely filled with human waste, the displaced air will destroy the water seals in all sanitary appliances - toilets, washbasins. In general, the consequences of a disaster can cause irreparable damage to property and health. By the way, in houses with more than 5 floors, pipes with a diameter of not 100, but 150 mm are used.

Standard Options

Domestic GOST and German DIN establish the main physical and chemical parameters of the material:

polypropylene pipes sewer GOST 11262 have a yield strength of 24-25 N/mm2;
tensile strength in the range of 34–35 N/mm2;
density from 0.93 to 0.95 g/cm 3 (GOST 26996-86);
roughness coefficient - 0.00011;
coefficient of linear expansion - 0.15 (5 times higher than that of reinforced ones);

Note!
To reduce the effects of thermal expansion, a compensatory gap is provided in the socket, providing a backlash of 10 mm.

melting point - +149 °C (GOST 21553);
thermal conductivity - 0.24 W / mK at +20 ° C (DIN 52612);
modulus of elasticity in bending - 1200 MPa (GOST 4648-71, DIN 53452);

Regulatory documents define outside diameter from 13 to 1200 mm, and the length of the segments in the range of 150–3000 mm. Polypropylene sewer pipes have an average wall thickness in the range of 2.9–18.3 mm (GOST R 52134-2003).

Pipe classification

Depending on the temperature to which PP pipes will be exposed, they are used in systems:

cold water supply;
filing hot water/heating;
sewerage;
ventilation.

Depending on the production technology, there are:

reinforced;
unreinforced.

Depending on the scope of application, polypropylene pipes for sewerage and water supply are the following types:

PN 10 with an outer diameter of 20–110 mm and an inner diameter of 16.2–90 mm; wall thickness from 1.9 to 10 mm; provides cold water supply at a pressure of 1 MPa and circulation in the underfloor heating system (respectively +20/+45 °C);
PN 16 - for cold / hot water supply up to + 60 ° C with a pressure of 1.6 MPa;
PN 20 withstands pressure up to 2 MPa, liquid temperature up to +80 °C and is used for hot water supply; the outer one is 16–110, the inner one is 10.6–73.2 mm with a wall thickness of 16 to 18.4 mm;
PN 25 - reinforced aluminum foil, largely due to their multi-layered nature, they withstand coolant temperatures up to +95 ° C, which makes them ideal candidates for a hot water supply system at a nominal pressure of 2.5 MPa; the value of the outer diameter is 21.2–77.9, and the inner diameter is 13.2–50 mm with a wall thickness of 4–13.3 mm.

Based on the molecular structure of the material, it happens:

PPN – polypropylene homopolymer, low molecular weight compound; omitting the chemical details, we will only say that despite the strength, such a polypropylene sewer pipe is defenseless to temperature extremes and can crumble to smithereens from frost;
PPB - block copolymers of polypropylene or, as it is also called, type 2 polypropylene; the composition of this material includes polyethylene, which gives it elasticity; heat resistance is much higher than PPN;
PPR - random copolymers or type 3 polypropylene - unique material, which has a crystalline structure, thanks to which the products stand out for their exceptional strength, resists temperature extremes (up to +140 ° C) and the effects of alkalis / acids; it is type 3 that has a shape memory that returns the product to its original physical parameters after exposure to low temperatures.

How to navigate the label

On their surface, PP pipes are marked - letters and numbers that are incomprehensible at first glance, which contain valuable information.

First, there is the name of the manufacturer and its logo, and then we learn to read:

an abbreviation indicating the material, for example, N (homopolymer), B (block copolymer), or PPRC (the combination PP always means polypropylene);

nominal pressure (PN), which holds the sewer polypropylene pipe;

Note!
Increase nominal pressure leads to a thickening of the pipe wall.

25x4.2 - diameter and wall thickness;
operating class;
maximum pressure expressed in MPa;
ends the line with the document number (GOST, TU).

In addition to the generally accepted, the marking may contain Additional information about compliance international standards, MRS classification - something like a minimum guarantee. Of the mass of numbers, the last two indicate the date of production.

Mounting methods

Installation of an external sewer system is perhaps the fastest and easiest due to the socket design. Polypropylene sewer pipes GOST 9833-73 have a cuff-type rubber ring inside the socket, which does not allow the pipe to jump back out. This operation is done by hand additional tools.

Note!
To reduce friction when assembling fragments, you can lubricate the edges of the inserted segment with silicone grease.

For the installation of the internal system, the soldering method is used with a soldering iron or iron, fittings, and the process itself, with all the nuances - time and temperature, is described in detail in the instructions:

heat up the soldering iron with attached nozzles;
put a fitting on one of them with inside diameter equal to the outer diameter of the pipe, to the other - the end of the pipe;
withstand 5 seconds;
remove the parts and insert the pipe into the fitting.

Note!
If an unheated polypropylene sewer pipe easily enters a cold fitting, this means that it is defective.

An important condition for a well-done work is immobility during cooling, which should occur naturally. An additional confirmation of a good result will be a melted ring at the docking point. Sewer pipes made of polypropylene are connected to metal fittings using combined fittings with brass / chrome inserts.

In conclusion

Once you see, hold a polypropylene pipe in your hands, the advantages of the revolutionary material over the monolithic steel weight of the last century immediately become obvious. The strength and lightness of the material, elementary installation and an adequate price, for the most part, become an incentive to change your life in better side.

The video shows the installation process internal sewerage.

In the comments, you can always clarify your questions about the selection and installation of polypropylene pipes

Polypropylene pipes are used to equip not only plumbing and heating, but also sewer systems, which is natural, given the characteristics of the material and strict quality standards.

Polypropylene pipes are excellent operational characteristics, which is due to the characteristics of the material. They are durable, lightweight, not subject to corrosion, do not lose their throughput over time, can be used in different conditions while being easy to install. All this allows the use of polypropylene to create water, heating and, of course, sewer pipes.

Advantages of using polypropylene pipes in external and internal sewerage

Polypropylene can be called a relatively soft material, so its use in outdoor sewage is associated with a number of features aimed at strengthening the walls (pipes do not withstand strong soil pressure). Nevertheless, the use of polypropylene even for outdoor networks has its undeniable advantages:

low thermal conductivity of the material and resistance to temperature extremes, which allows them to be used for arranging wastewater in industry;
low coefficient of friction of polypropylene, which allows the pipe to pass much more media at a time than similar metal products;
environmental cleanliness and safety of the material, making it impossible to contaminate the liquid, as well as the formation of salt deposits on the inner walls, the occurrence of bacterial sediment;
ease of installation, which significantly reduces the time of work, since the installation does not require the use of a large or heavy tool;
polypropylene pipes are manufactured in accordance with standards (including regulated sizes that match similar products made of metal and ceramics), and this allows you to easily repair a pipeline section and replace individual components.

In order for flexible polypropylene pipes to be used in the arrangement of external sewer networks, they are made in a special way. In fact, there are 2 layers of polypropylene in the pipe - inner smooth and outer corrugated. This allows you to withstand the pressure of the soil and evenly distribute the load.

For installation of internal sewer and plumbing systems pipes with smooth walls are used, since there is no need to equalize the pressure. Therefore, polypropylene pipes can be called the undisputed leader, an order of magnitude ahead of competitors. This also applies to polyvinyl chloride pipes (PVC), which occupy an honorable second place, but are inferior to polypropylene in some characteristics.

Why PPR pipes are better

They are resistant to mechanical shocks due to the strength and flexibility of the material: polypropylene is able to slightly deform without violating its integrity, and then return to its original state again.
The chemical inertness of the raw material allows the pipe to come into contact with caustic, acidic liquids, which would be a significant irritant for other materials. Safety can be added to the same point, including the disposal of polypropylene waste.
The heat resistance of PPR is much higher than that of PVC. Constant working t=80-90°C with a short-term increase to t=100°C makes PPR pipes a much more versatile option than polyvinyl chloride pipes designed to work at t=40-60°C.
The frost resistance of polypropylene pipes varies depending on the additives in the raw materials, while the spread is quite large: t = -10 ... -50 ° C, which is enough for use even in the northern regions.
Long service life is the most important indicator, and for polypropylene pipes it is really excellent: such pipes will last up to 50 years, or even longer, according to laboratory tests, the result of which indicates a period of up to 100 years of work.

It should be noted that only products corresponding to GOST have all the above advantages. Therefore, it is important to choose the right manufacturer that meets all standards from the selection of raw materials and production to packaging and delivery of pipes.

Standards for the manufacture and supply of polypropylene pipes for sewerage

One state standard for polypropylene pipes used for arranging external and internal sewage, no, however, there are separate provisions - for the raw materials from which the pipes are made, the completeness of the pipeline, marking, safety requirements.

Pipes polypropylene GOST must correspond:

GOST 26996, TU 2211-020-00203521 - raw material from polypropylene copolymer "Balen" 02003, medium pressure PPR 01003;
GOST 9833 - pipes are equipped with rubber seals;
GOST 12.3.030 - safe production of pipes and components without disrupting the process.

Given the flammable nature of the raw materials, in the event of an emergency, it is necessary to act in accordance with the safety precautions provided for in accordance with GOST 12.1.044: use foam, inert gases, water from sprayers, isolate access to air.

The size of batches of pipes and fittings is also regulated - no more than 5000 m and a maximum of 1000 pieces, respectively.

Polypropylene sewer pipes GOST: marking

Marking is applied to each pipe by printing or rolling with an interval not exceeding 4 m. For different operating conditions, different types sewer pipes. The marking contains the following information:

type of raw materials used;
operating pressure;
maximum operating temperature;
diameter.

Pipes marked PPR 80 are considered the best option for use in sewer networks.

Characteristics of profiles of different sizes

For the organization of external sewerage, corrugated polypropylene pipes with a large throughput are used. Their diameter starts from 2000 mm and above, depending on which section of the sewer system they are used in, and whether there is a lot of waste there.

in sewers and drainage systems polypropylene pipes with diameters from 20 to 1600 mm and even more are used. The presence of pipes standard sizes allows you to build any sewer scheme, replace a section of the old pipeline. The most common pipes with diameters of 50 and 110 mm for non-pressure systems, while for pressure pipes, pipes with more wide choice diameters - from 32 to 2000 mm, and their length reaches 12 m.
Alina Vorobyova, expert

PVC sewer pipes 50 mm

Pipes with an outer diameter of 50 mm are used for wiring sewerage networks, for domestic wastewater (outlets from sinks, bathtubs). They are used in buildings of residential and non-residential stock, administrative, as well as in production.

The international classification of PPR pipes involves the use of gray polypropylene for the manufacture of sewer pipes with a diameter of 50 mm. Polypropylene products make the drain system much lighter than previously used cast iron products, and they are not afraid of chemical attack and high temperatures. They are easy to clean, they do not need any preparation, but are used immediately and guarantee stable operation throughout the entire service life.

The wall thickness of such pipes is 1.8 mm, the length can be very different - from 2.5 m to 30 m.

Polypropylene pipes for sewerage 110 mm

The wall thickness in pipes with a diameter of 110 mm is usually not less than 2 mm (~ 2.2-2.7 mm). They can be used to equip a stock organization in various types buildings. Mostly pipes of just this size are used to organize the descent of drains from the toilet bowl and to equip the riser.

Installation of sewer pipes made of polypropylene

Installation polypropylene sewer is simple - you do not need to use a lot of tools and the material itself is very light. After all, even in order to cut the pipe, a special tool is not required - this can be done with a knife. There are several ways to install polypropylene pipes.

Socket connections

The most popular and frequently encountered mounting method. The pipes are connected "butt-to-butt".

Peculiarities:

the preparatory stage includes the selection of pipes and fittings, sockets by size, and when drawing up a sewerage plan, the length of the pipe that will be inserted into the socket should be taken into account;
before starting the connection, the outer chamfer is completely removed from the pipes, so that there are no hooks, notches and other irregularities - the surface must be perfectly smooth;
the pipes must be connected manually, while it is necessary to leave a compensation gap of about 1 cm in reserve;
when working on a project, it is imperative to take into account the slope, if any.

Installation using welding

For welding semi-propylene pipes, a special heat-welding tool is used. Pipes connected in this way do not require additional stripping. Under the action of temperature, the material melts, and the ends of the pipes are connected to each other, and when solidified, they form a strong monolithic connection. The joint becomes almost invisible.

For a welded joint, additional elements are required - bushings and heating plates for pipes of different sizes.

Coupling with couplings

The coupling type of connection is used to fasten pipes of external sewerage. Corrugated pipes are connected using sliding pipes, and rubber seals must be used to ensure the tightness of the joints. Thus, a tight connection is achieved, protected from penetration. external factors inside the sewer system. At the same time, welding machines are not used, installation is quick and simple.

As you can see, polypropylene pipes are widely used in the arrangement of both internal and external sewer systems. Thanks to technical specifications and the versatility of the material, they can be buried in the ground, used in the internal sewerage and embedded in the walls. When selecting pipes, you should take into account the quality of raw materials and always pay attention to the labeling of products from the manufacturer: having learned how to do this, you can easily select all the necessary pipes yourself.

Polypropylene pipes are becoming more and more popular, which is primarily due to the emergence of new types of polypropylene, as the material is getting better almost every year. So, polypropylene sewer pipes seem simple and, it would seem, there are no strict requirements here, but this is not so. It is important that these products, from which communications are assembled, meet all quality requirements, otherwise difficulties may be encountered. PP sewer pipes have a lot positive qualities but need to know important nuances- this is what today's article will be about.

Polypropylene sewer pipes are made of PPR 80 copolymer. This material is characterized chemical resistance to alkaline and acidic solvents. For this reason, such polypropylene pipes are ideal for domestic sewage.

The material is produced if the structure of polypropylene is modernized. Ethylene molecules are added to the initial composition, which improves the final properties. PPR 80 copolymer, in comparison with other materials, is more durable, resistant to high temperatures and has a long service life. The described sewer pipes made of polypropylene are mainly used in domestic and engineering communications.

Important! PPR 80 copolymer is safe for both environment as well as for human life.

Positive qualities of PP:

Polypropylene pipes used for sewerage have a long service life. According to the manufacturers themselves, their service life reaches 50 years.
Sewerage from such polypropylene pipes may not be painted.
Sewer PP pipes are not demanding in terms of insulation. This is explained by the fact that they have low thermal conductivity. In short, there will be no heat loss, but with outside condensation will not accumulate.
Compared with other options, PP products are able to save heat by 20%.
They are available for trouble-free transportation of liquids, the temperature of which does not exceed +95 degrees Celsius. This best option for domestic pipelines.
Water pipelines made of polypropylene products have a small mass, so the elements themselves are easier to transport, and communications are easier to assemble. Compared to metal engineering networks, polypropylene sewerage has a mass 8 times less. Thus, the installation of products is more affordable.
The material does not pass stray currents, so isolation from electricity is not required.
Since the material is resistant to chemical influences, the diameter of the elements will always remain the same ( throughput).
There is no bacterial flora, so gravity sewerage remains hygienic.
Using polypropylene pipes, sewerage is installed 4 times faster than using other material.
A smooth surface is also beneficial, since deposits will not form from the inside during the operation of the sewer, affecting the permeability of the liquid.
Chemical reagents and aggressive media are not afraid of PP.
Due to the excellent sound insulation, you will not hear how water moves over the products.
PP-elements are not able to change the composition of the liquid passing through them.
Lower flow resistance as the inside of the product is absolutely smooth.

When installing sewerage 10-15 years ago the only option there were pipes made of gray or ductile iron. They are very durable, quite plastic, can serve up to 75 - 85 years. But the surface of the cast iron is rough, prone to the formation of deposits, which prevents free movement Wastewater. Also important is the large weight of cast iron and its high cost.

On this moment cast iron is displacing different kinds plastic. In outdoor systems, PVC products are more often used, which have increased stability to temperature changes, mechanical and chemical loads. Polypropylene is stiffer than PVC, but more suitable for an internal system.

Specifications, test rules, conditions of packaging, transportation, storage for polypropylene sewer pipes - GOST 22689.2-89 and TU 2248-052-00284581-2002. The same document also defines the requirements for fittings made of polypropylene.

Raw materials for the manufacture of polypropylene

Production of polypropylene is environmentally friendly, based on extrusion - extrusion certain form from molten raw materials. Granular polymer is used as raw material. Its quality and shelf life are of great importance.

Although the product is called polypropylene, in fact, copolymers or their mixtures are used for production, which increase the ring stiffness and resistance to ultraviolet rays. Experts consider copolymer random 3 (PPR 80) to be the best raw material. The type of raw material must be indicated in the labeling.

Application area

In systems inside buildings, polypropylene pipes for internal sewage PPR PN10 - PN20 with a diameter of 50 - 110 mm are used. For outdoor system double-walled polypropylene corrugated sewer pipes are preferable, the inner wall of which is smooth and the outer wall is corrugated. This type of polypropylene products can be buried to a depth of 15 meters. For large buildings, corrugated pipes with a diameter of 250 - 850 mm are produced.

Advantages and disadvantages

Polypropylene sewer pipes - specifications:

smooth inner surface provides high throughput;
easy transportation, simple installation;
strength ensures a long service life;
resistance to rust, deposit formation.

Polypropylene pipes for sewerage are produced with appropriate fittings: flanged, threaded, self-locking, compression, etc.

Internal sewerage

For systems inside buildings, it is mainly polypropylene pipes for internal sewage that are used. This is due to their properties:

resistance to mechanical stress, in particular, to shock - the material is temporarily deformed, but not destroyed;
chemical inertness - tolerates contact with acids and alkalis;
endures internal environment with temperatures from -50 to +90 degrees;
warranty period - 50 years, but it can be more;
does not need additional protective coating;
small coefficient of linear expansion and thermal conductivity.

The weight of polypropylene is 10 times less than the weight of cast iron. takes a few hours, and it will take at least a day to make a cast-iron one, in addition, significant physical effort and powerful fasteners will be required.

Outdoor sewerage

Polypropylene does not tolerate soil pressure very well, therefore, it requires additional strengthening of the walls. But this circumstance does not prevent its use in laying external networks. This is especially true for corrugated products. Due to the double-walled structure, they are able to carry any dynamic and static loads. In addition, when freezing, polypropylene does not collapse - plasticity allows the walls to stretch, and after the ice melts, they take on their original state.

Polypropylene products for external sewerage are characterized by:

- low thermal conductivity, allowing to divert industrial effluents;
- low coefficient of friction makes it possible to pass a large amount of wastewater;
- no deposits are formed on the walls, which eliminates congestion;
- easy, fast installation;
- the diameter does not differ from the diameter of similar cast iron or ceramic materials;
- repair or replacement of individual sections is not difficult.

Mounting order

The basic principle of connecting polypropylene products is the use of a rubber ring with a socket. According to GOST-u 22689.2-89 (download from the link >>>), polypropylene pipes for sewerage are supplied in, allowing you to mount the system with any configuration. An additional advantage is the ability to embed the pipeline into the walls, leading out through special inspection hatches.

The market offers many options for sewer pipes. When choosing, one should take into account their intended location and the type of system (external or internal). The method of installation is also important. But from all of the above, a conclusion suggests itself.

Polypropylene sewer products are a simple, relatively cheap solution. Installation can be carried out very quickly, and the system will serve for a long time.

Polypropylene pipes have high performance characteristics, this is ensured by the properties of the feedstock. Resistance to external influences and internal factors allows you to actively use products not only in the formation heating system or water supply. Installation of sewerage from polypropylene pipes is a promising solution that provides numerous benefits over a long service life.

Advantages of using polypropylene pipes for sewerage

The rapid development of technology allows you to choose the material for construction and repair with minimum set shortcomings and a lot of positive features. Polypropylene pipes reasonably occupied a wide segment of the market, representing products for arranging water supply, sewerage and heating. What are the general advantages of polypropylene products:

The flexibility and strength of the material contributes to the stability of the mechanical impact on the polypropylene product. A blow can provoke a slight deformation, after which the shape of the object will return to its original form.
The chemical inertness of the feedstock ensures that the pipes come into contact with caustic liquids without subsequent damage.
Environmental safety of the product, including the process of recycling waste from polypropylene.
The heat resistance of PPR pipes is significantly higher than that of PVC analogues. At operating temperatures up to 90°C and increasing briefly to 100°C, polypropylene construction is more versatile than PVC option operating in the range of 40-60 o C.
The use of additives in the production of polypropylene pipes contributes to their high frost resistance, reaching a low mark of -50 ° C. These properties allow the material to be used in the northern regions.
A guaranteed service life of 50 years is a weighty argument for preferring polypropylene. Laboratory research talk about the probability of flawless use in work for 100 years.

Important ! The listed advantages apply exclusively to products that meet GOST. Be careful when choosing a material to the manufacturer's data.

Relative softness polypropylene material provides for a number of features in the operation of pipes for external sewerage. Traditional products will not work here, as the soil will crush the entire structure. For the arrangement of external sewerage, polypropylene pipes are produced using a special technology that ensures uniform distribution of the soil load. The essence of the method is to create a two-layer pipe, inner part which is ideally smooth, and the outer one is a corrugated surface, which allows to reduce soil pressure. When installing internal sewage, smooth pipes are used due to the lack of pressure from the outside. Polypropylene pipes for sewerage won leadership among competitors due to the following factors:

resistance to temperature changes and low thermal conductivity is optimally suited for the arrangement of industrial wastewater;
the low coefficient of friction of the material contributes to greater throughput than in similar metal products;
cleanliness and safety in environmental plan guarantees the absence of salt deposits and the formation of bacterial sediment inside.
ease of installation helps to reduce the period construction works, the material does not need additional application heavy equipment.
standard sizes of polypropylene pipes, coinciding with metal and ceramic counterparts, provide a painless replacement of a separate section of the sewer.

Thanks to these properties, the palm among products intended for arranging sewerage rightfully belongs to polypropylene pipes.

Product standards and labels

There is no single GOST for polypropylene products intended for arranging sewers. However, developed regulations governing the individual stages of production. According to these documents, for the manufacture of polypropylene pipes:

raw materials that meet GOST 26996 are used;
the equipment is made with rubber seals - GOST 9833;
the technological process is regulated by GOST 12.3.030.

Important ! In the event of a fire hazard when working with the material in accordance with GOST 12.1.044, inert gases, foam and water from sprayers are used. Additionally, access to fresh air should be isolated.

Labeling of polypropylene products allows you to obtain the necessary information about the purpose of the product and its operational capabilities. It reflects:

what raw materials are pipes made of;
what working pressure the product can withstand;
the maximum allowable temperature limit;
diameter.

For the arrangement of sewerage, it is optimal to use PPR pipes 80.

Product range

The cross-sectional diameter and dimensions depend on the purpose of the product. According to the industry document TU 4926 for sewerage, the following should be produced:

Length from 2 to 8 m with a step of 1 m between sizes, in some cases the length reaches 12 m.
For a non-pressure sewerage system, pipes Ø 50, 110 and 150 mm are produced. The first two options are the most common.
The range of products for pressure systems is wider. The diameter varies between 32-2000 mm, and the step between sizes is one inch. The length of the product sometimes exceeds 12 m.

Therefore, in the absence of the required dimensions among the assortment of a non-pressure system, they turn to the choice of polypropylene pipes for a pressure-type sewerage system. External sewerage is equipped exclusively with corrugated products, the required throughput is provided by a large diameter, it starts from 2000 mm and above. in residential and administrative buildings for internal sewerage wiring, material Ø 50 mm is used. The thickness of their walls is 1.8 mm, the length varies between 2.5-30 m. Sewer risers are equipped with pipes Ø 110 mm, the wall thickness of which exceeds 2 mm.

Types of fittings

When installing a sewerage system, you will definitely need connecting elements. All components of this series are divided into fittings for glued connections and fittings for socket connections. The range of fittings includes the following products:

Removable bell, put on a pipe Ø 310 mm. Applies exclusively to industrial scale, not used for domestic sewage.
Transition pipe, designed for joining pipes with a diameter of 50 and 110 mm. One end of the pipe is a smooth pipe, and the other is a socket.
Elbows providing angular conjugation of horizontal and vertical lines.
Tees and crosses are used when inserting side branches into central system sewerage. They can be the same or different diameters. Insertion is carried out in a perpendicular or parallel plane. The ends of the parts are presented in the form of a socket or have a smooth shape.
Docking of two polypropylene elements is carried out using couplings. This is a piece of pipe, having a length of 90 to 160 mm, the ends are designed in the form of sockets, and the diameter corresponds to the diameter of the pipe.

In addition to fittings, the sewerage assembly procedure will require the use of two more products - a tee with a plug and an expansion pipe. Their purpose is to facilitate the installation of the system and simplify further maintenance of the polypropylene structure built into the wall.

Mounting options

Installation of sewerage from polypropylene pipes is not difficult. Even when cutting parts, you can get by with a traditional knife without resorting to using special tools. There are three main options for installing sewerage from polypropylene elements:

socket connections;
application of welding;
use of couplings.

The most common is the first option, when the connection occurs by docking using a socket. The second method will require the presence of special thermal welding equipment. United in this way polypropylene parts do not need additional cleaning. The process consists in the adhesion of melted under the action high temperature ends of parts. After hardening, they are a high-strength monolithic product, and the joint is practically invisible.

Remark ! The welding method assumes the presence additional elements- bushings and heating plates.

Installation of external sewerage is carried out by the coupling method of connection. Corrugated pipes are joined using sliding parts, tightness is ensured through the use of rubber seals. This method guarantees a tight fixation with full protection against foreign elements entering the sewer from the outside. Absence welding machines contributes to a quick installation process that takes place without complex actions.