How To Cut Polypropylene Pipes


The installation of an internal sewage system and an external highway is in many ways similar. The difference is in the materials used. For internal sewerage systems, gray painted collectors are used. The outer ones have an orange tint. This is due to the difference in external loads:

  • Indoor products are affected by their own weight and, periodically, by the load from the flowing liquid. Thermal heating up to 60–90 ° C is added with a parallel chemical attack from the waste components.
  • Parts located outside the building are exposed to:
  • Pressure from the mass of the covering soil;
  • Impact from the weight of passing vehicles;
  • Experiencing efforts from overhead structures;
  • Are exposed to external temperature extremes, from negative to positive.
  • Hence, the installation of internal sewerage is carried out with a predominance of polymer materials:

    • PVC (polyvinyl chloride). precisely, unplasticized PVC (PVC – U).
    • HDPE (low pressure polyethylene).
    • PPR (polypropylene).

    The most in demand are PVC products. Installation of internal collectors is carried out by joining the narrowed part of the pipe and the expanded one (bell). Additional elements are used. fittings (transition couplings, tees, elbows with an angle of 45 ° and 90 °, bends).

    Installation of sewer pipes is carried out with the obligatory observance of the angles of inclination:

    • For collector Ø 50mm, the slope will be 2-3 cm per one linear meter of length.
    • For a product Ø 100mm. about 1–2 cm per 1 meter.

    In the process of installation or repair work, there is a need to cut the plastic part. Polymers do not have high hardness and strength compared to metal products. Therefore, they are processed by most locksmith and mechanical tools. It is possible to cut a plastic pipe by:

    • Hacksaws for metal or with fine hardened teeth;
    • Triangular file;
    • Jigsaw (for diameters not exceeding 50mm);
    • Circular or reciprocating saw;
    • Angle grinder and other tools.

    Installation of sewerage systems is carried out according to the rules based on the requirements of SP 30.13330.2012. In addition to observing the slopes, it is necessary to correctly distribute the points of attachments and connections. If technically possible, it is recommended to carry out hidden wiring.

    Installation of sewer pipes indoors begins:

    • From drawing up a work plan;
    • Execution of a sketch or drawing;
    • Determination of the required reservoir dimensions;
    • Preparation of the necessary material;
    • Preparing a tool with which you can cut a plastic part.

    At the end of the installation stage, the internal sewerage device is checked visually. Further, it is necessary to spill the system with water in order to identify possible product defects or the presence of leaks.

    How to cut a sewer pipe

    The drainage system or discharge of dirty wastewater is a complex of plumbing fixtures and sewer pipes. The assembly process into a single functioning system is described by the installation process.

    It indicates the sequence of work, the tools and consumables used, and also describes the method. how to install the sewer pipes correctly.


    The external system includes:

    • Waste line from pipes Ø 100-200mm (for individual housing).
    • Overflow (inspection) wells.
    • Couplings, fittings.
    • Wastewater receiver (cesspool, septic tank, biological treatment station).

    Installation of sewerage outside the building is regulated by SNiP 2.04.03–85 “Sewerage. External networks and facilities ".

    How to properly cut plastic sewer pipes

    Today I will tell you about evolution. Not in the sense of evolution according to Darwin’s theory, but about the evolution of plumbing. There are such sewer pipes known to all. the fifties. I want to talk about the evolution of how their plumbers cut.

    How to cut plastic pipes

    How To Cut Polypropylene Pipes

    Hello readers! In this article, I want to talk about how to properly cut plastic pipes. What tool is better and more convenient to do.

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    Reinforced-plastic pipes are capturing an ever larger segment of the plumbing market, so the issue of their maintenance is becoming more urgent. It is believed that if it is necessary to replace such pipes, the entire pipeline must be changed. But this opinion is wrong.

    Products are easy to cut and change in parts without harm to the general water supply or heating system. The following is how to properly cut metal-plastic pipes.

    • Cutting methods
    • How to cut metal-plastic pipes
    • Preparing the pipe and the necessary tools
    • Tools for cutting metal-plastic pipes
    • Cutting technique
    • How to cut a sewer pipe
    • Briefly about the drainage system
    • Internal
    • Outdoor
    • Mounting
    • Outdoor system installation
    • How to properly cut plastic sewer pipes
    • Hacksaw
    • Angle Grinder
    • Plastic pipe cutting tool
    • High-quality cutting of polypropylene pipes
    • See How To Choose Pipe Cutting Shears
    • The main types of tools cutting propylene pipes
    • Selection of a specific type of polypropylene pipes for specific conditions
    • How to cut polypropylene pipes? Principles for choosing a good tool
    • Plastic pipe cutting technology with precision scissors
    • Conclusion


    The first is a hacksaw. Arriving with a pipe and a hacksaw on some object, they do this.

    Straight edges are obtained. And when the pipe is inserted into the pipe, this gum bites from the edge, so the plumbers have to do an additional operation, namely, chamfering. This is done either with a knife, respectively, or the pipe simply rubs against the concrete, and a chamfer is obtained.

    Shears for cutting polypropylene pipes: an overview of types instructions for use

    Polypropylene is a material that has come out on top in modern plumbing. Polypropylene is now used to make many sanitary fittings, including pipes and fittings. This raises logical questions. For example, what tool to cut PP pipes?

    We will talk about how best to cut polymer blanks for pipeline assembly. The article presented by us describes in detail how to use scissors for cutting polypropylene pipes in practice. Our recommendations will help you perfectly cut pipes with different diameters and wall thicknesses.

    Overview of cutters for polypropylene pipes

    Before starting the review, it is worth clarifying: with scissor cutters, you can cut pipes of small diameters (usually 15-32 mm). Scissors generally fall under the hand tool category.

    Pipe cutters are already used for cutting products of large diameters (32 mm and more). There are manual and electric pipe cutters.

    The cutting tool in everyday life is used in the assembly of pipelines for heating and water supply systems in country houses. They will be needed in carrying out repair work and modernization of existing circuits in city apartments.

    Cutters will be needed for craftsmen who make interesting crafts from PP pipes, collect greenhouses and landscaping sites.

    The entire cutting tool is conventionally divided into types, depending on its design:

    • Scissors;
    • Telescopes;
    • Guillotines.

    Scissor cutters are precision hand tools. The characteristic "precision" literally means exact. Indeed, precision scissors give a precise, even cut thanks to the sharp steel blade.

    As a rule, such designs are built on the basis of a ratchet mechanism, which allows you to operate with one hand without much effort. The lack of scissors is the course of the blades at a certain angle relative to the pipe surface and obtaining an ovality defect.

    The telescopic tool is structurally made in the form of a bracket, on the front side of which there are 1 or 2 pairs of metal rollers.

    On the back side of the bracket there is a cutting disc fixed to a movable rod. The plastic pipe is inserted between the rollers and the disk cutter, after which, by smoothly supporting the cutter and turning the tool around the pipe axis, cutting is performed.

    Guillotine models are structurally reminiscent of scissors, but in this case, a distinctive feature is the extremely direct step-by-step feed of the wedge knife to the pipe body.

    There is a uniform distribution of the load, which gives a better cut (excludes ovality defect after cutting).

    There are manual guillotine models and automatic ones, for example, operating from a small-sized battery-powered engine.

    Useful tips set out in the article we recommend will help you decide on the best model of pipe cutter for cutting a polymer pipe.

    BADA pipe cutters

    From specific examples of machine tools, we can note, for example, BADA band saws:

    • SJC 315;
    • SYH 500;
    • SJC 1600.
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    Model 315 works with products up to 315 mm in diameter, cuts workpieces at almost any desired angle (0. 67.5º). The specifics of cutting pipes at an angle using a hand tool will be introduced to the article, which we advise you to read.

    Among other things, such scissors for cutting plastic pipes are also available for processing tees, crosses, bends, etc.

    Plastic pipe cutters: instructions for use

    Of course, the scissors for cutting plastic pipes, depending on the design features, have their own instructions. Regardless of the type of tool and the working conditions, it is recommended to follow the instructions in the instructions exactly. This approach will save the user from industrial accidents and help maintain the service life of the tool.

    You should always remember: instructions are written in order to convey to the user all the subtleties of working with the instrument.

    Plastic pipe cutting machines

    Professional activity, where work is carried out with polypropylene pipes, already involves the use of machines. Such equipment is mainly intended for cutting large diameter plastic pipes from 63 to 1600 mm. The machines not only help you to cut, but also allow you to do it at different angles.

    How to use a pipe cutter with rollers?

    The instruction for the user of the pipe cutter with rollers usually mentions the following sequence of actions:

    • Use a marker to mark the cutting line on the pipe surface.
    • Unscrew the stop screw to the point where the pipe freely enters the mouth of the bracket.
    • By turning the stop screw clockwise, press the disc mechanism with slight force against the pipe wall.
    • Rotate the cutter 360º around the pipe axis (you can repeat the operation).

    Then repeat steps 3 and 4 until the pipe is cut completely.

    It should be emphasized that it is not permissible to press the cutter blade excessively against the pipe. Such an action can cause the effect of the appearance of microcracks at the cutting point, which will have a negative impact on the quality of work.

    Cutting methods

    There are several basic cutting methods, which directly depend on the tool used. First of all, you can cut products:

    • Knife for efficient cutting of reinforced plastic pipes. The knife in this case should be used self-sharpening.
    • A hacksaw for metal. The simplest method, which, however, will require a lot of effort and time from the performer. In addition, the edges can be torn.
    • Scissors.
    • Pipe cutter.

    With some tools, the cut edges are quite uneven and material particles can subsequently cause clogging. The best way is to use special scissors, which cut evenly without leaving torn edges. These scissors can cut objects up to 40 mm in diameter.

    For larger diameter products, choose a pipe cutter. Pipe cutters are telescopic and ratchet. The first type is based on the operation of a special roller that rolls along the entire circumference. The second type is more like scissors, as it uses a lever system with two handles.

    How to cut metal-plastic

    Reinforced-plastic pipes are capturing an ever larger segment of the plumbing market, so the issue of their maintenance is becoming more urgent. It is believed that if it is necessary to replace such pipes, the entire pipeline must be changed. But this opinion is wrong. Products are easy to cut and change in parts without harm to the general water supply or heating system. The following is how to properly cut metal-plastic pipes.

    Tools for cutting metal-plastic pipes

    In the process of cutting pipes, the following tools come in handy:

    • Calibrator;
    • Pipe bender;
    • Adjustable wrench;
    • The cloth;
    • Scissors.

    It is important for the master to determine in advance what he will use to cut metal-plastic pipes. The most important tool on the list is scissors. Everything else is necessary for special preparatory work.

    The cutting process does not require much effort. It is enough just to fully control every movement. If you don’t pay enough attention to control, you can easily cut off the excess.

    If during the cutting process it is necessary to bend the product, it is not recommended to do it by hand. This can easily ruin the aluminum layer inside. It is better to take a professional pipe bender and perform the operation with it.

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    The use of inappropriate tools when working on one area can affect the entire network as a whole, leading to high repair costs.

    Before proceeding directly to cutting, it is necessary to very clearly measure out the part where the unit will be divided. For this, a tape measure or ruler is used, as well as a bright marker. A faded pencil can simply not be seen, especially if there is not enough lighting in the room. The mark can be made with a knife, leaving a scratch.

    During operation, pieces of plastic and aluminum can fly in different directions. Therefore, you must use protective equipment in the form of glasses and special clothing.

    How to cut metal-plastic pipes

    Reinforced-plastic pipes have a number of advantages over their competitors. They are much lighter than metal and much more resistant to oxidation than copper. They are easy to replace and easy to shape. You can create piping of any shape. Well, the main advantage is cost. It is much lower than that of copper pipes. And the quality is about the same.

    During operation, it may be necessary to cut pipes. For this, a special tool is used, which is designed to work with such a material. To improve the effectiveness of the procedure, it is recommended to properly prepare the pipe and tools before work. Consider the main features of metal-plastic pipes and how to cut them.

    Preparing the pipe and the necessary tools

    The cutting device itself, measuring tapes, adjustable wrenches, seals and some other things are used as tools. All this should be in an accessible place at the time of work.

    Sometimes it is necessary to strip the outside of the reinforced covering to facilitate the cutting process in the next step. For stripping, a clutch with blades is used, which allows you to get a perfectly smooth cut and get rid of the polymer layer. This is necessary for welding work, which is likely to be carried out during the installation of the pipeline.

    Cutting technique

    Self-cutting can be carried out with products with a diameter of 5 to 30 cm. So, if the product does not fall within these limits, it is best to turn to professionals.

    When carrying out any such manipulations, it is important to remember the basic rules:

    • Reinforced plastic products are very sensitive to temperature, so some problems may arise in hot or cold weather. The material shrinks and expands easily, making it difficult to determine the true dimensions.
    • Reinforced-plastic pipes, like polypropylene pipes, can be cut by any means at hand. But in order to avoid various negative consequences, it is best to do this with special tools.
    • A special self-sharpening knife is an excellent tool. But if it is planned to carry out work to replace one section with another, it is better to abandon the tool in favor of scissors.
    • The material is quite fragile. Applying too much force is fraught with cracks or specific deformations. The permissible load can be seen in the product passport, which was issued at the time of installation of the water supply system.
    • The type of cutting directly depends on the proportion of metal and plastic in the product. If there is more metal, then there should be as little friction as possible when cutting. Otherwise, a large proportion of plastic means more work with high friction.
    • Before starting work, be sure to make sure that there is no water or gas flowing through the pipe. You need to turn off all the taps and wait a little.
    • After completion of the work, you need to properly clean the inside of debris that can lead to blockages or break specialized equipment.

    The use of electronic cutting tools is not considered reasonable, as the material is not designed for this. Can be handled manually.