What to cut polypropylene pipes: types of pipe cutters, tips for choosing what to cut, what not to cut
As you can see: you can solve the problem of cutting polymer pipes with different tools: manual and electrified, oversized and designed to work with small pipes. Therefore, such tools are purchased for specific diameters of polymer “rolled products” and specific amounts of cutting.
And if you need a pipe cutter for small pipes a guillotine or circular pipe cutter is the best choice, whereas huge pipes can only be cut with a band saw.
Installation of indoor sewer and outdoor mains are similar in many ways. The difference is in the materials used. For indoor sewage systems collectors are used, painted in gray. The outer ones have an orange tint. This is due to the difference in external loads:
- Products located indoors are affected by their own weight and, occasionally, by the load of flowing fluid. Heat up to 60-90°C is added, with a parallel chemical attack from the components of the effluent.
- Parts located outside of the building are exposed:
- pressure from the weight of the covering soil;
- The weight of the passing traffic;
- Are experiencing forces from the buildings above;
- exposed to external temperature variations, from negative to positive.
Hence, the installation of domestic sewage is carried out with the predominance of polymeric materials:
PVC products are most in demand. Installation of internal collectors made in the way of joining the narrowed part of the pipe and expanded (bell). Apply additional elements. fittings (transition sleeves, tees, angles with an angle of 45 ° and 90 °, taps).
The installation of sewer pipes is made with the obligatory observance of angles of inclination:
In the process of installation or repair work, there is a need to saw a plastic part. Polymers are not as hard and durable as metal products. Therefore, they can be worked with most locksmith’s and mechanical tools. It is possible to cut a plastic pipe by:
- Metal hacksaw or with a fine hardened tooth;
- with a triangular file;
- jigsaw (for diameters not exceeding 50mm);
- circular or saber saw;
- Angle grinder and other tools.
Installation of sewage systems is performed according to the rules based on the requirements of SP 30.13330.2012. In addition to observing the gradients, it is necessary to properly distribute the points of fasteners, connections. If technically possible, it is recommended to perform hidden wiring.
Installation of indoor sewer pipes begins:
- From the drawing up of a work plan;
- Drawing or sketching
- determining the necessary dimensions of the collector;
- preparation of the necessary material;
- Preparation of a tool with which the plastic part can be sawed.
At the end of the installation phase, the internal drainage system is checked visually. Next, you need to pour water over the system in order to identify possible defects in the products or the presence of leaks.
How to cut a pipe evenly with an angle grinder at 45 and 90 degrees | Methods of cutting
When working with construction or plumbing tasks, you need to know how to evenly cut the pipe with an angle grinder. In this article we’ll consider some quick and easy ways to cut the pipe with an angle grinder to get the best result.
Cutting the pipe at an angle of 45 and 90 degrees
If you need to cut the pipe at a 45 degree angle, which is often required when laying water, heating pipes.
Often steel, cast iron pipes are used, which have a cylindrical shape. Rectangular or profile pipes are used in installation work.
However, you should properly cut the pipe with an angle grinder, so that you can then easily connect. Therefore, it is necessary to carefully mark the pipe.
Some masters try to mark the place of a cut with a tape measure, but we warn you that the result will most likely be negative. And for a positive result, consider the following recommendation of professionals.
Take a sheet of paper or cardboard, preferably A4, fold diagonally and wrap around the pipe where you plan to make an even cut. The edges of the paper should absolutely coincide with each other. And the side of the paper that is closer to the end of the pipe was perpendicular to the axis. After that, in a circle, mark out the fishing line for the trimmer of the cut.
If you need to cut exactly at a 90-degree angle, solve the problem quickly, again using paper or masking tape. Wrap around the pipe so that the ends are aligned. Make an even mark and saw off.
Masters are advised to use an angle piece when cutting a profile pipe. To do this, take turns putting the angle piece to the sides, and with smooth movements turn and apply the marks. After you have finished, fasten the pipe and cut. Prepare yourself a template, which will come in handy in the future and save time. It is better to do it with an angle grinder, so the cut will be smoother.
When working with a cast iron pipe, keep in mind that it is a fragile material. Therefore, let’s introduce a method by which you will get to cut such metal without damage.
Before you begin, make a mark for the cut, just as you would with steel pipes. Put a wood block for support. Pass an angle grinder around the circumference of the pipe, making small cuts. Then take a chisel, put it in the groove, and hit it hard with a hammer. Keep in mind that for cutting cast iron pipes you should use cutting discs on a bakelite base.
If you do not have at hand an angle grinder to cut a cast iron sewer pipe or other purposes, use a hacksaw for metal, chisels or special pipe cutters.
Cutting a gas pipe is a dangerous action, so it is best to trust professionals. But if you are sure of your strength, then for cutting metal take an angle grinder, a welder, a hacksaw, a gas welder.
How to Cut Metal-Plastic Pipes
Metal plastic pipes have a number of advantages over their competitors. They are much lighter than metal ones and much more resistant to oxidation than copper ones. They are easy to replace and easy to give the necessary shape.
Any shape of pipe can be created. And the main advantage is the cost. It is much lower than with copper pipes. And the quality is at about the same level.
In the process of operation it may be necessary to cut the pipe. It uses special tools that are designed to work with this kind of material.
To increase the efficiency of the procedure, it is recommended to properly prepare the pipe and tools before the work. Let’s consider the main features of metal-plastic pipes and what to cut them with.
Preparation of the pipe and the necessary tools
The tools used are the cutting device itself, measuring tapes, adjustable wrenches, gaskets and some other things. All of this should be in an accessible location at the time of the work.
Sometimes it is necessary to clean the outer part of the reinforced coating to simplify the process of cutting at the next stage. For scraping use a coupling with blades, which allows you to get a perfectly flat cut and get rid of the layer of polymer. This is necessary for the welding work that is likely to be carried out during the installation of the pipeline.
Important! When working, it is necessary to cut off exactly the amount of material needed to fit the fitting for the metal-plastic products.
First of all, it is necessary to collect everything that will be needed for the task at hand.
As you know, metal pipes include a layer of plastic and an aluminum substrate. They are firmly welded by laser welding. The frame is an aluminum tube. The core of the product is quite smooth.
For scraping pipe products must use a coupling. The surface of the product itself takes only a short time to clean.
How to cut reinforced polypropylene?
No special scissors, you need to cut a polypropylene pipe (water pipe), than to cut it without scissors? hand scissors. But it is also necessary to consider the diameter of the pipe and the thickness of its wall. If the pipe is reinforced with aluminum, you need to buy a shaver for the scissors, if the reinforcement is made of fiberglass, the shaver is not necessary.
You can cut a metal pipe with a metal hacksaw. It is not expensive, it is on sale in any shop. store. To ensure that the cut was even, as a marking you can wrap the pipe with a sheet of paper or newspaper.
What to saw pnd?
Installation of plastic ducts is many times easier than working with metal ducts. You can cut plastic pipes for ventilation with a hacksaw with a metal blade or an angle grinder with a cutting disk. In any case the cut is straight, with no burrs.
How to correctly solder polypropylene pipes.
Immediately before soldering pipes, you need to prepare all the necessary tools.
The first, you must purchase or rent a special device (soldering iron) to heat pipes before their docking.
Soldering iron consists of a bus (heating element), a stand in the form of legs and a handle with a control board, nozzles of various cross-sections. It works from the network.
Secondly, you must have a tape measure, special scissors for cutting pipes (usually they are included with soldering iron in the suitcase).
Soldering of polypropylene pipes is carried out on the following principle:
It is installed on a stand, screwed nozzles of suitable size, set the temperature to 260 º C. Wait about 15 minutes for the iron to heat up. When the red light turns off. you can start working;