How to cut a plastic sewer pipe. Cutting cutter
How to cut plastic pipes for the water supply: options
To figure out how to cut plastic pipes for water supply and sewage, you must understand what materials they are made of. That is, by and large you can answer immediately-it will be a hacksaw for metal, a sharp knife, an angular grinder with a cutting disk or a pipe scissors. But each individual case is fraught with certain nuances that you need to know even an amateur plumbing.
For a water supply, sewage and heating in the sanitary product market, you can find several types of polymer pipes:
- Polyvinyl chloride pipes known as PVC.
- Metal.plastic flexible pipes with reinforcement.
- Pipe from stitched polyethylene for water supply and heating.
- Polypropylene pipes with and without reinforcement.
PVC pipes. how to cut them
Polyvinyl chloride pipes, known as PVC can have a diameter of 50 to 400 mm, mainly used for sewage and ventilation. Polyvinyl chloride pipes relate to materials designed for low pressure, but have rather hard walls. For small diameters as a cutting tool, as a rule, a hacksaw for metal is used (diameter no more than 200 mm). In this case, a universal cutter can be called a corner grinder with a cutting disk for metal (as an exception, you can use the concrete disk with winning segments or diamond spraying). If you need to cut the pipe more than Ø 200 mm, but there is no way to connect to ≈220 V, then again it is done with a hacksaw, cutting off the workpiece in a circle.
In order for the cut end to the pipe to have 90 °, the fishing line for the trimmer cut is outlined by a marker. this helps to adhere to a right angle and not go aside. The cut, as a rule, turns out to be torn. melted pieces of plastic chips will stick out in different directions and will not allow you to insert the pipe into the bell through a sealing ring or rubber reduction. Therefore, the cut should be cleaned with a knife, and sometimes it is even necessary to make an external chamfer. this is relevant in cases where fittings and pipes from different manufacturers.
Metal.plastic flexible pipes with reinforcement
Now we will figure out how to properly cut plastic pipes with reinforcement, known as metal.plast. The image at the top shows two metal.plast bays. these are composite material made of polyethylene, aluminum foil and glue (there are manufacturers who do not use glue, but in this case, it does not matter). Diameters from 16 to 32 mm are used in household needs, which allows you to fragment them with a hacksaw for metal, corner grinding with a small disk, knife or plumbing pipe scissors.
How to Use PVC Pipe Cutters
Despite the fact that you can use any of the above cutting tools, there is still a difference, and significant. All these cutters, with the exception of corner grinders and hacksaws for metal, are very pressed against the walls during fragmentation, and the pipe is flattened. This suggests that further manipulations with metal.plast can only be done after cutting the cut with a special tool. For experienced plumbers, this procedure means delay for only a few seconds, but for beginners in such situations it is best to cost a corner grinder or a hacksaw for metal. After circumcision on the plastic, there are burrs that need to be scrape (do not cut!) with a knife.
They are very similar to metal-plast in the appearance and structure of the walls of the pipe PEX-A, PEX-B and PEX-C, but there is sewn polyethylene and reinforcement have a slightly different quality. Since we are now not talking about the technical characteristics of water pipes, we simply limit ourselves to the fact that the conditions for cutting PEX remain exactly the same as for the usual metal.plastic.
Pipe from stitched polyethylene for water supply and heating
Now let’s fire about the same stitched polyethylene, only without reinforcement. In this situation, the pipes have a characteristic feature of restoring the form after damage. This means that if such a pipe is cut with a knife or scissors-pipe cutters, after flattening it will take a characteristic rounded shape. In fact, in this case, any of the tools that was mentioned above is suitable as a cutter. But for a beautiful, even angle, it is better to cut the place of fragmentation with a marker.
It should be understood that PPR pipes differ not only in diameter, but also in the structure of the walls. So, the marking PPR PN10 and PN16 indicates the lack of reinforcement, and the marking PN20 and PN25 suggests that the pipe is reinforced with aluminum foil or fiberglass. For cutting polypropylene pipes, as a rule, they use pipe scissors, which are sold complete with a soldering iron for PPR, and they can also be bought separately. But we should not forget that the capabilities of the scissors are limited by the diameter of the PPR and they are usually used for pipes not thicker than 40 mm.
On an industrial scale, gas pipelines with a diameter of up to 1600 mm are laid and, of course, there can be no way to do with scissors or corner grinder with a trimmed disk. Therefore, the cutting of polypropylene pipes of large diameter is performed by a special pipeline. For example, for one.time cutting, scissors with a chain drive are most often used, as in the upper photo, but for laying industrial pipelines, it is undoubtedly better to use cutting tools with electric.
Scabble for metal.
The most common way. The only drawback. The cut can turn out to be a curve to avoid this, it is advisable not to saw immediately, but to turn the pipe 3-6 times. It will look approximately like this:
The fastest and most convenient way after scissors. But the cut can also turn out a little oblique on sewer pipes with a diameter of 50 mm. Here it is also desirable not to cut right away, but turn the pipe 2-3 times. If you need to saw off the pipe with a diameter of 100 mm or more, then first you need to drill a thin drill (2.5-3 mm) a number of holes to insert a jig.
This method is suitable only for thick.walled water pipes.
If the cut is still not very even or not straight, the end of the pipe can be treated with a grinding skin. And at the end of the sewer pipe for better docking you need to remove the chamfer, this can be done with a knife, but it is more convenient for the same grinding skin.
Access to the full version of this article and all other articles on this site costs only 30. After the successful completion of the transfer, a page with gratitude, email address and continuation of the article will open. If you want to ask a question about calculating structures, please use this address. Thank you very much.)). If the page has not opened, then most likely you transferred from another Yandex-Koshelka, but in any case you do not need to worry. The main thing is that when drawing up a translation, accurately indicate your e-mail and I will definitely contact you. In addition, you can always add your comment. details in the article “Sign up for an appointment with a doctor”
For terminals Yandex wallet number 410012390761783
Card number YMONEY 4048 4150 0452 9638 SERGEI GUTOV
For Ukraine. Hryvne map number (Privatbank) 5168 7422 4128 9630
It is easier to cut off a corner grinder with a disc 0.8-1.0 mm, with its help you can clean the end of the burrs
Note: Perhaps your question, especially if it concerns the calculation of structures, will not appear in the general list or will remain unanswered, even if you ask it 20 times in a row. Why, in sufficient detail, is explained in the article “Sign up for an appointment with a doctor” (link in the site hat).
Pipe for non.pressure sewage. high.quality and inexpensive pipes in stock.
Universal scissors with a ratchet mechanism
I don’t know which plant makes such a construct of scissors because I met them under different brands. If you put the scissors Uponor, Rehau, Kraftool and Zenten nearby, then the scissors will differ only in color.
I think that these manufacturers simply order these scissors under their brand from someone third-party manufacturer. Oddly enough, but, and Kraftool and Rehau are about 3,000.
This format of pipeline scissors is the best of all that I had.
These scissors are equally convenient and easy to cut both pipes of small diameter from soft materials, such as polyethylene, and solid polypropylene pipes with an aluminum layer.
The maximum diameter of the pipes that can cut off these scissors. 42 mm.
How to cut polypropylene pipes with a diameter of more than 42 mm
There are pipeline scissors with which you can cut pipes up to 63 mm, but you need to crush the scissors on the handles of the scissors to cut the pipe.
After the breakdowns of three scissors of different manufacturers in my hands, I began to cut polypropylene pipes with a large diameter with a saber’s saw.
No need to pursue and shit, squeezing the knobs of scissors from the last forces. I just take a saber’s saw, put on it a canvas with a sharp and large tooth and in a few seconds, I cut the pipe without effort. Then I clean the cut place with a knife. It is fast, simple and easy enough.
How to choose pipe cutting scissors
For home use or for use from time to time, usually take mechanical scissors for cutting pipes. The design is chosen at the same time, so that it is “cheap and reliable”. Most often they buy scissors with rattle. In principle, an acquitted choice. Beginner professionals work and. You just need to choose the right model.
In general, you can give the following recommendations for choosing the type of cutter for pipes. A thin.walled pipe without reinforcement from any material is cut by a pipe.normal or scissors, regardless of the structure. Diameter restrictions-32 mm, wall thickness-up to 4-5 mm. Any pipes, what are? Yes, all: metal.plastic (MP), polyethylene (Pert, PEX), polyvinyl chloride (PVC), PVDF, low.pressure polyethylene (PND), polypropylene (PP, PPR or PPR), including reinforced with fiberglass and even small pipes (with a diameter of 16.20 mm) reinforced with aluminum foil. For the same pipes, but with a diameter of 4 mm or more, we need more powerful scissors. They should be more in size, and “tougher” in assembly.
Which scissors are better for PVC, PPR, PET, MP pipes
For reinforced polypropylene and PEX with a diameter of 25-40 mm, a good roller cutter is required, and for even more, a guillotine or the same roller scissors, but from a professional series are already needed.
There are no difficulties in this paragraph. Two positions must be monitored:
Look carefully at these characteristics. It is a shame: you buy scissors for polypropylene pipes for a couple of thousand, and then it turns out that it is precisely polypropylene that they do not cut.
First of all, we look at whether the type of material we need, then pay attention to the diameters
Another such advice. It is better to take a cutter that can cut the pipe to the size of a larger diameter than you plan to mount. For example, you will cut a 32 mm pipe as much as possible, but take a tool for 40 mm. Why? A pipe of maximum size is very difficult. Namely, they usually do the main wiring. Smaller diameter only goes on layering. A tool for larger diameter in size is slightly larger (and a little more expensive), but it cuts easier.
By the way, a cheap tool has a pipe declared the largest diameter, sometimes simply does not fit into the holder. So you need to check. If there is no piece with you, compare the dimensions of the cutting part with similar. The dimensions are more or less the same? Excellent. If you have chosen in appearance less, it is better to postpone.
The case of the scissors can be made of silumin or other such alloy and steel. Inexpensive models from silumin can break if you are very crushing when you cut a large diameter pipe. So if you take silumin, so those that are thoroughly thorough and weigh not one hundred grams. We inspect the case for cracks, caverns, burrs. there are such damage. They immediately put them aside. Next, we examine on the following signs:
- Need a strong powerful case.
- Lack of backlash. If the new scissors hang out, then the cut will not be even. And if you also work with them, you will have to hold everything with your hands for sure.
We examine the handles. The main thing is that they are convenient. We’ll have to squeeze them, so the sharp edges, inconveniently lying in the hand, too, we put off. The best option is rubberized or with rubber lining. But this is already a non.budget series.
What can be the blade
The main working part of the pipe cutting scissors is the blade. It can be made of instrumental (cheaper and soft type of steel) and alloy (more expensive and durable) steel. As a rule, a blade of alloy steel can cut plastic and copper pipes. Scissors for polypropylene pipes have a instrumental steel blade.
The type of steel is not all. We must look at the thickness of the blade. If it is thin, with a large diameter, the cut goes to the side and cuts the pipe at an angle. But we need it under 90 °.
Carzac mechanism for pipes type “Pistol”
Why cut it strictly at right angles? To make the connection strong and durable. This is important for pipes of any type, but critically important for metal.plastic and polypropylene, reinforced with foil.
The thicker the blade, the easier it is to work. By the way, there are models of scissors for polypropylene pipes with a removable blade, there are those in which the blade and the “ladder” of the ratchet mechanism. one whole. The second option is more durable. The fewer the connections, the longer the service life.
What else can you cut pipes
Sometimes you just need to make a pair of cuts on the pipe. Buying for such a case even inexpensive scissors for cutting pipes does not make sense. This is what else you can cut off plastic, metal.plastic and polypropylene pipes:
- Corner grinder with thin (1 mm) disk. The pipe is clamped in a vice. Conveniently cut off 1-2 mm. This is necessary when fitting. None of the cutters or scissors, such a small piece is not able to cut off.
- Miter saw. Cuts perfectly. If there is, you can work for her.
After working with this tool, you usually need to correct the cut. If there are burrs, remove them, pour the shavings. In general, the cut should be even, and the pipe is clean.
Conclusions and useful videos
In order for the assembly of the pipeline to be crowned with success, you need to choose the tool for cutting pipe from polypropylene correctly. Not every pipeline is suitable for such work.
They still need to learn how to use it, having previously tested it on an unnecessary piece of the pipe. The video reviews below will definitely help you navigate in choosing this equipment.
Review of various scissors for cutting polypropylene pipes:
Comparison of different methods of cutting pipes from plastic:
How to use a ratchet pipeline:
Look for a pipeline for home use? Or there are already experience working with similar equipment? Please leave your Комментарии и мнения владельцев, share your experience, ask the article in the block located below.
Scissors are suitable for PVC not the thickness of the inch
PVC pipes scissors are inexpensive and easy to use. They are available in most household stores or centers for landscaping a house in the plumbing section. However, they are limited in their cutting ability and can add a load on their hands, since they are ideal for small pipes. Scissors for plastic pipes should only be used for PVC with a thickness of 1 inch or less.
How to cut the pipe along
Is it possible at home without special equipment to cut along with the smoothness of the PVC pipe with a diameter of 100 mm 3 m long ?
Комментарии и мнения владельцев of users:
In order to cut exactly the pipe along, they usually use special equipment called a bracelet with a slot.But as I understand it, you do not have such equipment and you want to cut the pipe at home.This can be done more evenly and carefully, but not everyone has such a tool at home.In this case, you can use the usual file.The cut thanks to the jigsaw and the file is quite even, but you will have to spend a lot of time on it.The fastest way is the use of corner grinders, but the cut may not be as smooth as you would like.
I understood the question like this: nothing, but how to cut. I did it like that you put the pipe in an even place, packed it on both sides (with several segments of a massive corner), it is desirable for the bars along the entire length so that the pipe does not spin about. You note by the eye of the top and a lace of soaked in ink you beat off a flat fishing line for a trimmer. You count the length of the circle, make a template from a rope along the length of half a circle you tie the cloves and Dapeie should be clear. From the already drawn braid fishing line, you mark several points on the other side. But cut anything, I am a jigsaw.
Output two points and through them pull the rope. In order for the trimmer fishing line to be clearly visible and not clogged with sawdust, glue paper tape. One of its edge on a stretched thread and on this edge will go a cut. You can cut it with a jigsaw, but if it is not, then with a canvas from a hacksaw for metal, wrapping the edge of the canvas with a rag or foam, to keep it more conveniently.
Cut Machine,Pvc Pipe Cutter,Plastic Tube Cutting Machine
I have not tried this method yet, but I think you can do it like that. We take a sheet of paper A4, A3 depending on the length of the pipe, you can use the newspaper, it has a geometry is also not bad. Cut off the length of the pipeline circumference, draw a fishing line for a trimmer in the middle of the sheet and wrap up the pipe combining the edges of the sheet. Combined angles are points of the straight section, from the opposite side it is a point drawing a straight line. With this method of mowing fishing line, the axis of the pipe axis will be strictly parallel.
Take the pipe, take metal.Corner, larger or equal to the length of the pipe, fix the corner to the pipe and saw (the corner will not give the disk ‘walk’). Work in the same way with a sheet metal
Read How to cut a corrugated stainless pipe
Maybe someone will come in handy. I had to make a prefabricated pipe to the boiler in a greenhouse. Well, they cut off a piece in L-250 mm pipes, cut along the wall, expanded the cut place, welded a piece of L-250, h- equal to the optimal diameter, then welded to the main pipe, a pipe with a ‘skirt’ happened
financially wealthy plumbing have a small corner grinder with them. I’m not talking about Bosh, I’m talking about some cheaper. Now I will set it up for myself. And accordingly we cut the pipe.
The faster method compared to the first. When using it, more even edges are obtained. It also certainly depends on where the hands of the one who saws, but the edges are more even. There is one drawback compared to the first way. this is a chamfer. The chamfer is obtained with such burrs, and you have to process these edges additionally. Well, it will go. But the corner grinder is overgrown with such a web, chacha, and it is quite difficult to clean it.
Types of pipeline equipment
In stores, a tool for cutting polypropylene pipes (PP) is offered the most different. These are both manual mechanical and electrical devices.
Each of them has its own virtues. Choosing the most suitable equipment should be based on the volume of work and their complexity.
Polypropylene pipes can be cut using scissors or roller tools. the first option is cheaper, and the second is more effective in work
When choosing equipment for cutting polypropylene pipes, the main attention must be paid to two points:
- The blade must be made of alloy steel.
- Each pipeline model has two indicators. the minimum and maximum pipe size. This range should be selected so that it is enough to perform work.
The case of the case of such equipment is usually made of metal. And best when it is aluminum, not steel. A pipeline with aluminum handles is light by weight, work will take less strength to them. Soft polypropylene pipes do not require unnecessary efforts when cutting. Aluminum tool will cope with arising loads without problems.
A pipeline can have replaced or irreplaceable incisors. Sooner or later they will be worn out. In the second case, the tools will have to be bought again. However, if the cutting device is needed for one.time operation, it is better to take a cheaper model with an unprofitable equipment.
Pipelines. tools that allow with extremely high accuracy to cut the polypropylene pipes for their future connection
The pipe pp is cut during the repair of the old or the construction of a new pipeline of water supply systems, low.temperature heating, sewage, ventilation
Before buying a hand tool, it is important to try it, hold it in your hands and decide whether it will be convenient to work
Ergonomics. Not the most important characteristic for the power tool. However, it is also advisable to hold him, as a hand.made pipeline, in order to understand how simple and convenient it is to control
In the cutting of polymer pipes, which, in addition to the traditional unstable shape, also have lightness, it is important to decide whether to buy a pipeline with an mounted device for fixing or attach it in a vice or in a stupor
If it is supposed to cut the pipe of the canopy during the repair, it is better to buy a tool with a built.in device for reliable fixation of the pipe
If you have to carry out a one.time cut and numerous cutting operations are not planned, it is possible to cut off the pipe pipe with a jigsaw, ordinary hacksaw or electric saw, fixing it first in Stusl
Option #1. Guillotine
The simplest in design and the exact quality of the cut pipeline equipment is guillotine scissors. They can be manual and electric drive. Structurally, this is a blade that descends onto a pipe from polypropylene, which makes an even and strictly perpendicular to the longitudinal line.
In the simplest and cheapest performance, the guillotine pipeline resembles a small classic guillotine with a blade, a handle with a rod to increase the pressure force and an opening clamping clamp for the pipe from the bottom
Most of the manual guillotine is designed to cut pipe products with a cross section of up to 70 mm. But some models are subject to diameters of 100-150 mm. This is enough to perform installation work at home. Everything that is higher is already referred to as industrial equipment.
The knife as they press on the soft polypropylene easily open it. Pipe deformations do not occur due to the severity of the cutter coated with teflon and the smoothness of its movement. After the cut of polypropylene, additional processing of the end is no longer required. The pipe is completely ready for soldering and using fittings.
The only drawback of the guillotine that is worthy of mention is the low speed of work. Each time the blade needs to be returned to its original position by prolonged twisting the rod. But the cut is perfectly even, and for this you can twist the handle. However, if it is planned to cut polypropylene pipes, then it is better to choose a different type of pipeline.
Giliotin pipelines are equipped with metal knives made of hardened instrumental steel alloy
When giving a cutting element, it can easily and simply be replaced with a new detail. It is attached elementary. two or more bolts
The presented model cuts polymer pipes without metallic reinforcement. But easily copes with the cut of hoses and pipes with the strengthening of fiber fiber
Option #2. rattles
This class of a pipe.cutting tool in shape resembles ordinary scissors with two handles. Only their blade is on one side. The second half is made in the form of a semicircular stop where the pipe should be placed during cutting.
They are equipped with a ratchet mechanism (rattle) so that the knife moves smoothly, and at the same time they had to apply efforts to a minimum.
Rhistry pipelines are designed for cutting thin pipes with a cross section of 15-30 mm, with a blunt cut or harsh pressure, pipe walls made of polypropylene are simply crushed by this tool
The main disadvantages of this cutting equipment are a high probability of obtaining a oblique cut and a possible crump of pipe. In fact, these are big manual scissors. You need to use them skillfully. Our site has a detailed article on how to use this type of pipeline. Read more. follow the link.
By inexperience, the slightest slope in their hands leads to the formation of a crooked end, which then has to be undermined. And if the pipe is also crumpled, then it will need to be straightened out from the inside with a calibrator.
The same type includes pistol pipelines with a crack. It is much easier to work with them. There are very little efforts for cutting, and the cut is more even.
The knife return to their original position occurs at all as a result of pressing the button due to the spring. This is the best option for cutting polypropylene pipes with thick and more solid walls.
Than and how you should not cut polypropylene?
In addition to the above specialized pipelines, polypropylene pipes can be cut:
One “but”. The edges of the pipe as a result of using these “improvised” tools are torn. This is not only ugly, but also unacceptable.
Before soldering, the pipe ends must be cleaned from all burrs and leveled, otherwise the connection will turn out to be fragile. Such aggressive cutting almost always leads to problems on a mounted pipeline in the future.
It is not recommended to use corner grinder. Due to the high speed of its disk, the polypropylene pipe will begin to heat up and melt. A similar situation can occur when using an electric lobe, if you turn it on to the entire power.
These tools should be used to cut plastic only in extreme cases, when there is nothing at hand.
If the plastic pipe has to be cut with a hacksaw, then it is necessary to do this by installing it in the knock, it is extremely recommended to cut it on weight, it will be difficult to get an even neat edge
Regardless of the chosen tool, it is impossible to press it on a polypropylene pipe when cutting. This applies to the use of both corner grinders and professional pipelines.
Efforts should be increased gradually, otherwise the plastic can simply crack. With severe pressure in the pipe walls from PP, invisible to the eye of the destruction, which will then lead to a gust of pipeline.
There is another argument against a strong pressure of the cutting tool on a pipe made of polypropylene. deformation in terms of geometry. The walls in the place of such pressure begin to remember, which is why the cut in the cross section from the circle turns into an oval. And the end of the welding with fitting should be perfectly round. Then you have to straighten it with a calibrator, which will require time and effort.
In order to prevent the bending of the walls, a couple of round bars of wood of slightly smaller diameter should be inserted into the cut pipe. The knife will have to pass between them when cutting polypropylene. So the plastic will definitely not bend, but will be spread as it should.
It is categorically not to use a strip saw or circular for cutting. Polypropylene is too soft and at the same time too fragile for them. On the one hand, the pipe can be pulled out of the hands, and on the other, without chips and cracks at the site of the cut, it will definitely not cost here.
It is also not recommended to use pipelines intended for pipes from metals. Their knives are made of other material with slightly different characteristics.
They will not cut plastic, but tear. The exception is only universal tools for all types of pipelines. But they cost a lot, this is more option for professional plumbers.
The tool is made by the American company Ridgid Tools. Pipelines are key manufacturer products. The model considered is suitable for cutting blanks with a diameter of 50 to 110 millimeters.
This instrument has a quick feeding mechanism. His return to the initial position is performed in a second. This saves time when performing a large amount of work.
Setting up for a specific blank diameter occurs quickly. The handle has a place for a spare video. You do not need to spend a lot of time to replace the cutting element. The video is made of alloy steel. It is characterized by a long operation time.
The X-Cel handle is ergonomic. Therefore, when using the tool, the hands do not get tired quickly. In general, the model is practical in use and is easily served. It is ideal for professional use.
Milwaukee C12 PPC-0 battery
The model is made by the American company Milwaukee Electric Tool, specializing in the manufacture of professional tools. The cutter is suitable for working with pipes with a diameter of up to fifty millimeters. When cutting blanks, strong pressure is created. Therefore, working with a tool is easy. On a pipe from a PVC, the maximum permissible diameter pipeline for this, three seconds are leaving. The gearbox and gears are made of durable metal. Due to this, the maximum torque is achieved.
Cut speed can be adjusted. The device is equipped with a good battery. One charge is enough to carry out two hundred cuts. The battery is reliable. It is characterized by a long service life. For small diameter pipes, this tool will be the best choice. If you have no desire to buy a pipeline for blanks of each size, stop choosing more universal models.