Good day, my reader! In this article I will briefly list the installation rules polypropylene pipes wires The main operation when installing polypropylene pipelines is soldering. Let's start with it!
Rules for soldering polypropylene pipes.
Polypropylene pipes and fittings are connected to each other using soldering. The method is simple, but nevertheless some rules must be followed. We list these rules below:
- The first thing you need to do is prepare for work welding machine— mount the necessary nozzles on the heating surface, install the welding machine on a tripod (the machine must stand on flat surface), plug in and set the required temperature on the thermostat (on cheap Chinese devices you don’t need to set anything - they heat up to 260° C automatically).
- After the “welder” has warmed up to operating temperature, you can start soldering. Before soldering, it is necessary to cut the pipe evenly, remove burrs from its edges and mark with a marker the distance at which the pipe will be inserted into the socket. Manufacturers also recommend degreasing the surface of the pipes, but it is enough to just keep the pipe clean. For pipes reinforced with metal foil, it is necessary to use a special stripper (for pipes with external reinforcement) or a trimmer (for pipes with internal reinforcement). If the pipe is reinforced with fiberglass, then you just need to cut it straight.
- Next, the fitting and pipe are inserted into the nozzle on the welding machine (it is important to insert the pipe and fitting evenly, otherwise the soldering will be poor quality) and you begin to count the time required for heating. For different diameters pipes, the time will vary (we give it below in the table).
| Diameter, mm. | The distance to which the pipe must be inserted into the socket, mm. | Heating time, sec. | Soldering cooling time, min |
| 20 | 17 | 6 | 2 |
| 25 | 19 | 7 | 2 |
| 32 | 22 | 8 | 4 |
| 40 | 24 | 12 | 4 |
| 50 | 27 | 18 | 4 |
| 63 | 30 | 24 | 6 |
| 75 | 32 | 30 | 6 |
| 90 | 35 | 40 | 8 |
- After completing the work, you need to turn off the welding machine from the network and wait until it cools down. After this, you can twist the attachments and put it in a box. Do not cool the welding machine with water. This will cause equipment failure.
For greater clarity of everything said above, watch this video:
To install polypropylene pipes near walls and in hard-to-reach places, you will need a partner. There are complex cases, when you have to use two partners and two soldering irons at the same time. Therefore, look for a companion in advance to carry out installation work.
How to calculate the number of fasteners for polypropylene?
Support for polypropylene pipes. Polypropylene pipes have standards for the number of fasteners per unit length. This amount depends on the diameter of the pipe and temperature regime. For clarity, we present this data in table form:
| Pipe diameter, mm | Distance between fasteners, mm. | ||||||
| 20°C | 30°C | 40°С | 50°C | 60°C | 70°С | 80°C | |
| 20 | 600 | 600 | 600 | 600 | 550 | 500 | 500 |
| 25 | 750 | 750 | 700 | 700 | 650 | 600 | 550 |
| 32 | 900 | 900 | 900 | 800 | 750 | 700 | 650 |
| 40 | 1000 | 1000 | 900 | 900 | 850 | 800 | 750 |
| 50 | 1200 | 1200 | 1100 | 1100 | 1000 | 950 | 900 |
| 63 | 1400 | 1400 | 1300 | 1300 | 1150 | 1150 | 1000 |
| 75 | 1500 | 1500 | 1400 | 1400 | 1250 | 1150 | 1100 |
| 90 | 1800 | 1600 | 1500 | 1500 | 1400 | 1250 | 1200 |
Now you just need to divide the total footage of the pipe by the distance indicated in the table and you will get the number of fasteners. The location of the fasteners needs to be considered separately. Typically, this is done during the project creation process. There is no need to skimp on supports; they are needed to protect pipelines from deformations that occur under the influence of temperature.
Tool for installing polypropylene pipes.
To install polypropylene pipes, the following tools are required:
- Welding machine.
- Nozzles - block or pair, depending on what kind of welding machine you have.
- Plastic pipe cutter.
- Marker for marking the pipe.
- Construction level.
- Wrench for tightening threaded connections.
- Belt wrench for combination clutches - very convenient thing for tightening combination couplings without hexagon.
- Thread, FUM or anaerobic sealant for sealing threaded connections
Wrench for combination couplings. 
The list is not too long, but here is the most necessary and it is better not to forget anything. From my own experience, I know that it is extremely inconvenient to work without a belt wrench and a marker.
Summary of the article.
Installation of polypropylene is a fairly simple process and does not require much training. The first time, you may ruin a few fittings and meters of pipe, but this is a small price to pay for knowledge and experience and you have to pay it. Moreover, the price of the material is more than affordable compared to copper or metal-plastic. That's all, write questions in the comments and press the social media buttons!
Polypropylene is by far the most popular material for the construction of pipelines for hot/cold water. One of the most important conditions, ensuring reliable operation of the system – correct fastening polypropylene pipes. It can be performed in several ways, which are divided into two main groups: outdoor installation and internal.
Regardless of the chosen installation option, special fasteners and consumables will be needed to implement it. This review provides up-to-date information that will be useful when choosing fasteners and consumables necessary for installing polypropylene lines.
What are the standards for fastening polypropylene pipes?
The laying of polypropylene pipelines must be carried out in accordance with the standards specified in GOST 52134-2003. This standard covers all necessary requirements on fastening pressure pipes made of polypropylene. Compliance with this standard guarantees reliable operation of the systems and the absence of leaks under normal operating parameters (temperature/pressure) in the system.
The pipes must be fastened in such a way as to compensate for their thermal expansion. To solve this problem, fixed elements are used sliding mount, which are able to respond to temperature changes (single/double clips).
Vault building regulations 40-101-96 indicates the inadmissibility of rigid fastening of polypropylene pipes. Therefore, it is necessary to use fixed sliding fastening elements that compensate for linear expansions.
How to fasten polypropylene pipes
To install highways using polypropylene pipes you will need:
- dowels
plastic clips (or clamps) the right size;
2. Tools:
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shaped screwdriver;
knife/scissors for cutting polypropylene pipes;
measuring tape;
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pencil or marker.
Fastening of polypropylene pipes must be carried out taking into account the risk of mechanical deformation and thermal expansion of the line. Experts recommend laying pipes in grooves, suspended ceiling structures, in walls, in screeds, along walls under baseboards or in an open way.
Installation of propylene pipes must be carried out at an ambient temperature of at least + 5 °C.
Pipes with an outer diameter ranging from 16 to 32 mm should be bent with a radius that is at least 8 outer diameters. Such operations are performed at air temperatures above 15°C.
Propylene pipes must be protected from open flames.
If during the wiring process it becomes necessary to cross pipelines, then it is necessary to use special fastening parts for crossing.
When connecting pipes using threads, special fittings of the required size are used. Threading on a polypropylene pipe is prohibited.
If the polypropylene pipeline contains sections of metal pipes, then the connection must be made without soldering or welding work, as this may lead to overheating of the polypropylene fasteners.
Pipelines are laid with a slope of at least 0.5%. A drain cock or drain valve must be installed at the lowest point of the pipeline. Long pipelines should be divided into separate elements, which can be closed using ball valves or straight-through valves shut-off valves. This is necessary to simplify maintenance and repair work on the polypropylene pipeline. At points where it is planned to install faucets and other plumbing equipment, a universal wall mount with axial adjustment from 10 to 15 cm.
Distance between fasteners
Maximum spacing for fastening polypropylene pipes PN 10 for horizontal highways:
Distance between fastenings of polypropylene pipes PN 16 when laying horizontally, it should not exceed the values indicated in the table:
Mounting distance for polypropylene pipes PN 20(maximum support spacing) at horizontal installation should not exceed the following values:
For vertical mounting, the values presented in the table must be multiplied by 1.3.
For polypropylene pipes STABI PN 20 with reinforcement:
Methods of fastening polypropylene pipes:
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At points where it is necessary to make a branch line
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At reinforcement attachment points
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Using clamps
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Fastening next to the fitting
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When fastening polypropylene pipes, you should take into account operating conditions (temperature\pressure), permissible linear expansion, as well as connection options. There are two main mounting options:
motionless (there is no possibility of moving the fastening along the axis of the polypropylene pipe);
movable (compression/extension of the line is provided without changing the position of the axis).
When is it better to use clips for fastening polypropylene pipes?
For installation of polypropylene pipelines, nylon clips are used. These parts have the necessary resistance to high temperatures and strength. The size of the clip should be selected based on the diameter of the pipe (outer). Fastening of polypropylene pipes is carried out in accordance with installation requirements. Advantages of installing pipelines using clips:
- If the installation requirements (clip installation intervals) are observed, the absence of bending of the line during operation is guaranteed.
Fast and reliable installation of pipelines. Fastening the clips to a wall or other surface is done with self-tapping screws.
This fastening option can be used for laying pipelines made of polypropylene pipes for various purposes that operate over a wide temperature range.
Fastening polypropylene pipes with clips provides an aesthetic appearance of the pipeline without additional covering structures.
Fastening can be done without special devices and tools.
Polypropylene pipe clips are used for fastening water and heating lines. With their help, you can attach the highway to surfaces made of wood, plasterboard, concrete or brick. Manufacturers' catalogs present single and double clips. When fastening pipelines in parallel, depending on the distance between the lines, two single or one double clips are used. Single fasteners are easily attached to each other without special tools. This way you can install several parallel branches of polypropylene pipes.
Clip sets can be equipped with straps that prevent the pipe from falling out of the mount.
When installing a pipeline made of polypropylene pipes, it is necessary to observe the fastening interval. When installing clips to excessive long distance The pipeline may sag between the supports. Optimal fastening intervals for pipes different sizes are presented in the table:
Table 1
Before performing work on fastening polypropylene pipes, they must be connected to each other. For this purpose, butt welding, polyfusion welding or electrofitting are used. In order to quickly and efficiently install the pipeline, experts recommend following the following algorithm of actions:
Before installation work begins, it is necessary to mark the future highway around the perimeter. It is necessary to ensure a slight slope of the pipeline.
At the fastening points of the main line, you need to drill holes for dowels.
Install clips into the holes.
Using a hammer and screwdriver, install the dowels.
Install the clips.
When is it advisable to use clamps for fastening polypropylene pipes?
The price for fastening polypropylene pipes depends on the fastening elements used and the weight of the pipe. For heavy pipes large diameter fastening clamps must be used. These elements have a rubber gasket that dampens vibration and screw ties for secure fastening. The clamps firmly fix even very heavy pipes during strong vibrations. The set includes a pin and dowel. There are plastic or metal clamps on the market. Experts recommend using polypropylene pipes for laying plastic fastener, which will ensure the same strength characteristics of the structure. The pipeline is fastened in the form of a rigid or floating structure:
- Floating fastening involves loosely tightening the clamp. In this case, a gap remains between the fasteners and the polypropylene pipe. This ensures the necessary mobility of the line during linear temperature expansions.
For rigid installation, the clamps must be tightened as much as possible on the pipes. This fastening is used at points located below the socket. This installation eliminates any displacement of the line.
IN specialized stores Clamps for polypropylene pipes with or without a rubber gasket are presented. Availability rubber seal provides sound insulation during operation of the line and protects it from vibrations.
When performing floating fastening of polypropylene pipes to the wall, the distance between the clamps must be selected based on the diameter of the pipe. Standard values for pipelines for various purposes are given in Table 2.
Table 2
How to fasten polypropylene heating and water pipes in a hidden way
To solve design problems, there is often a need for hidden communications. When using polypropylene pipes, customers have doubts about how reliable the pipeline will be and what technology should be used for installation work.
Polypropylene products are resistant to corrosion processes and chemically active substances. Knowing these characteristics, we can say that pipes made of this material are quite suitable for hidden installation in the wall or in concrete screed. Taking into account thermal expansion, when laying hot water supply pipelines in a hidden way around a polypropylene pipe, it is necessary to leave air gap. To ensure the operational reliability of the pipeline, it is necessary to minimize the number of pipeline connections. In addition, it is necessary to provide thermal insulation of the line. For this, special insulation materials, cardboard, mineral wool, etc. can be used. This will prevent the formation of condensation on the surface of polypropylene pipes. To service the system, it is necessary to provide easy access to the closing fittings. To do this, hatches are installed in the places where it is installed, which wide range presented in plumbing stores.
The first stage of pipeline laying involves marking the pipeline, which can be applied with a marker or pencil. Further operations are performed in the following sequence:
Using a grinder or a hammer drill, parallel grooves are cut using the applied markings. When working with a grinder, it is recommended to use stone processing discs or diamond-coated discs.
The gap between the grooves is removed using a hammer drill or chisel so that a wide recess is obtained.
A pipeline is laid in the prepared recess, which is sealed on top with a cement-based solution.
The installation site is finished with decorative material.
After completion of pipe laying, the main line is tested an hour later. To do this, it is filled with water and examined for leaks. When performing hidden installation in the wall, the pipes are secured using plastic fasteners. For large diameter pipelines, metal fasteners can be used.
Polypropylene pipes and consumables for their fastening it is better to purchase only from trusted suppliers. We offer you the assistance of specialists from the SantekhStandard company, which is a supplier engineering plumbing in Russia since 2004.
Collaborating with "SantechStandard", you gain the following benefits:
quality products for reasonable prices;
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delivery of goods to the regions via any transport companies;
individual approach And flexible work with every client;
discounts and various promotions for regular customers;
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registered in Russia trademarks, which is additional protection against low-quality counterfeits.
The specialists of our company “SantechStandard” are ready to help both individuals and companies choose plumbing equipment. You just need to contact us by phone:
The appearance of polypropylene pipes on the Russian market turned out to be very timely, when most houses built under Soviet rule had metal water and heating pipes began to fall into disrepair because they had completely served their term.
The period of some distrust in the new plastic pipes did not last long. Consumers appreciated the quality, aesthetics and operational advantages of polypropylene pipes.
Today we can confidently state that the time-tested polypropylene pipes have been extremely successful, and they have become a more advantageous alternative to pipes made from other materials. What requirements do regulatory documents impose on these products, and how to do it correctly?
Review of state standards for polypropylene pipes
Most products around the world are subject to various control systems that regulate their production and use.
The main regulatory documents in Russia are SP, SNiP, GOST: polypropylene pipes fall under the requirements of SP 40-101-96, SNiP 2.04.01-85, GOST R 52134-2003 and others.
Basic GOST requirements for polypropylene pipes
GOST R 52134-2003 “Thermoplastic pressure pipes... General technical specifications» regulates:
- Scope of application: thermoplastic pipes round section and are used for transporting drinking and process water, intended for the installation of cold water and hot water systems, heating of residential and non-residential buildings.
- The main parameters and dimensions are given in the document in tabular form; this paragraph contains data on what, according to GOST 52134 2003, a polypropylene pipe should have outer and inner diameters, wall thickness, permissible deviations etc.
- Technical requirements: a large paragraph contains characteristics, requirements for reliability, raw materials, materials, components, recommendations for completeness, packaging.
- Safety and Security Requirements environment: This section specifies the hazard classes in pipe production and contains reference requirements.
- Acceptance Rules: This covers test methods, lot sizes, sampling procedures for pipes and fittings for test inspections, etc.
- Control methods: this section regulates the procedure for testing products.
Large and important sections are also: transportation, storage conditions, pipe installation. In addition, various calculation tables are attached to GOST.
What do joint ventures and SNiPs regulate?
Rulebooks, building codes and the rules establish regulations for the design, installation and operation of systems, including those made of polypropylene pipes. Polypropylene pipes installed taking into account the requirements of SP and SNiP will work most efficiently and for a long time.
How to choose polypropylene pipes?
There are no prohibitions on doing it yourself in your own home, therefore, in principle, a person who has installation skills and has an idea of designing plumbing systems can purchase pipes and accessories for them and carry out the installation themselves.
Specialists in installing pipeline systems purchase the necessary components themselves and provide a comprehensive guarantee for the work performed (materials + installation).
In order not to make a mistake and purchase pipes with the required characteristics, you must:
- carefully study the certificate for polypropylene pipes in the store, it must contain information about the product’s service class according to Gosstandart; there are 6 classes of PP pipes:
- evaluate the quality of pipes and fittings: external and inner surface pipes must be smooth, the cross-section must have a perfectly round shape; The presence of shells, cracks, burrs and bubbles in the material is not allowed; colored models must have a uniform color;
- inquire about the product warranty; any pipe and its components must be covered by the supplier’s warranty.
It is important to consider that the permissible storage temperature for polypropylene pipes is not lower than 20 0 C. Therefore, you should not buy products on the street or in unheated stores in winter.
Polypropylene pipes are easy to install, reliable, and aesthetically pleasing. They have a long service life of 50 years. But it must be remembered that long-term, trouble-free use of pipeline systems installed in compliance with standards is possible only under normal conditions.
Note!
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The installation of polypropylene pipes in Russia is regulated by the provisions of GOST R 52134-2003 “Thermoplastic pressure pipes and connecting parts for water supply and heating systems”, SNiP 41-01-2003 “Heating, ventilation and air conditioning”, SNIP 3.05.01-85 “ Internal sanitary systems", SNiP 2.04.01-85 "Internal water supply and sewerage of buildings" and SP 40-101-96 "Code of rules for the design and installation of pipelines made of polypropylene "Random copolymer"". In the European Union, requirements for the installation of polypropylene pipes are established by a number of technical regulations - standards, detailed list which are given in this material.
The main purpose of installing polypropylene pipes, regardless of the source material (polypropylene homopolymer PP-H, polypropylene block copolymer PP-B, polypropylene random copolymer PPRC) and its modifications (Polypropylen-Homopolymer PP-H-s fire-resistant, Polypropylen-Randomcopolymer PP-R-el electrically conductive, Polypropylen -Randomcopolymer PP-R-s-el electrically conductive and fire-resistant) (see more), as well as reinforcement with aluminum foil or fiberglass is to ensure operating conditions under which the pressure and temperature of the transported liquid, and the ambient temperature will not cause internal stresses that can lead to loss of integrity or residual deformations in pipes, fittings and connections. The primary task of installing polypropylene pipes remains to compensate for linear temperature changes in the pipeline by changing the direction of the route and without the use of special compensators.
Unlike pipes made of galvanized or stainless steel(see) all pipes made of thermoplastic polymers (see this material) have a high linear coefficient thermal expansion, especially significant in hot water supply and heating systems.
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To solve this problem, the pipeline route is conditionally divided by fixed supports into sections that autonomously respond to changes in temperature (or pressure) in the pipeline. Fixed supports (NS) direct the extension along the axis to sliding supports (SO), installed in places where the direction of the route changes, which, in fact, are compensating devices.
The relative temperature elongation of the pipeline section limited by fixed supports for polypropylene pipes is calculated using the formula Δl = 0.15*l*Δt, Where:
- Δl– change in the linear size of the pipeline section along the route axis, mm;
- l– length of the pipeline section limited by fixed supports, m;
- Δt– difference in pipeline temperatures during operation and during installation of polypropylene pipes, °C;
- 0.15 – coefficient of linear thermal expansion of polypropylene pipes, mm/m °C.
Important: Polypropylene pipes reinforced with aluminum foil have a linear thermal expansion that is 2/3 less than polypropylene pipes without reinforcement. Polypropylene pipes, fiberglass reinforced, have a linear temperature expansion that is 3/5 less than polypropylene pipes without reinforcement.
The linear thermal expansion of PN 10,16,20 pipes made of random copolymer polypropylene and PP-R polypropylene pipes reinforced with aluminum foil for hot water supply and heating systems, depending on the temperature of the transported medium, can be determined using nomograms (see below).
Rice. Nomogram of linear temperature expansion of pipes PN 10,16,20 made of random copolymer polypropylene depending on the temperature of the transported medium 
Rice. Nomogram of linear temperature expansion of PN 20 pipes made of random copolymer polypropylene, reinforced with aluminum foil, depending on the temperature of the transported medium
Sliding supports when installing polypropylene pipes are usually made of clips, single or double, corresponding in diameter DN to the nominal diameter of the polypropylene pipe.
Rice. Single and double clips for sliding supports of polypropylene pipelines
SP 40-101-96 categorically prohibits rigid fixation of the pipeline when installing polypropylene pipes by compressing the pipeline. Therefore, fixed supports can be made on the basis of sliding supports with limitation of axial movement by two couplings or a coupling and a tee.
Rice. Fixed support for installation of polypropylene pipes according to the recommendations of SP 40-101-96
Most often, when installing polypropylene pipes, compensating changes in route direction are used:
The capabilities of loop compensating elements depending on the nominal diameter of polypropylene pipes are presented in the table below.
| d, mm | 16 | 20 | 25 | 32 | 40 |
| Δl, mm | 85-90 | 80 | 65-70 | 55 | 45 |
Important: Loop compensating elements have disadvantages - when installed on horizontal and vertical routes pipelines, it is extremely difficult to remove water from them, and when installed in horizontal routes, it is extremely difficult to remove air.
When installing polypropylene pipes, sliding supports are installed on the sides of turns, tees and bends, and all types of compensating devices can be used in the pipeline system for cold/hot water supply and heating.
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SP 40-101-96 imposes strict requirements on:
| Nominal O.D., mm | Temperature of the transported medium, degrees Celsius | ||
| 20 | 30 | 40 | |
| 16 | 500 | 450 | 400 |
| 20 | 550 | 500 | 450 |
| 25 | 650 | 550 | 500 |
| 32 | 750 | 650 | 600 |
| 40 | 850 | 800 | 700 |
| 50 | 1000 | 900 | 800 |
| 63 | 1150 | 1050 | 900 |
| 75 | 1300 | 1200 | 1000 |
| 90 | 1500 | 1350 | 1200 |
| 110 | 1700 | 1500 | 1300 |
| 125 | 1800 | 1700 | 1450 |
Connections made when installing polypropylene pipes
The main types of connections in the route when installing polypropylene pipes include:
