how to cut pvc pipe straight

 Doing projects with PVC pipe will often require the pipe to be cut. One of the advantages of PVC is that it can be cut easily, with a wide variety of tools, which makes the job relatively simple. You don’t need a complicated setup or fancy tools to cut PVC pipe. A variety of different tools can be used, including hacksaws, pipe cutters, and a miter saw to get the job done right.

1 Cutting pvc pipe with a hacksaw

(1) Clamp the pvc pipe in a vise. The most basic and useful tool for cutting pipes, PVC or other materials is the hacksaw. Even so, it is very important to use a vise to prevent it from moving and the risk of cutting yourself with a movement of the blade. Be extremely careful and take the necessary precautions when holding the tube.
You can use another type of work handle in place of the vise to hold the pvc pipe on your workbench. Use what you have available.
Hold it a few inches from the cutout to give yourself plenty of clearance. If possible, hold on to both sides of the cut, but with a handle, a few inches from the intended location will be secure enough.

 

(2) Mark the PVC pipe where you are going to cut. Use a permanent marker to clearly indicate the part of the tube that you will cut. Don’t worry if the mark stays, as you can clean it later with a little rubbing alcohol if you want a good finish.

（3）Insert the saw teeth into the pvc pipe. Place the hacksaw on the mark and hold it firmly by the grip. Next, use your other hand to press down on the top of the saw, sinking the teeth into the tube. It is advisable to start at the correct point, as this will not start with messy cuts.

 

（4）Saw the pvc pipe firmly. Start sawing, making sure to watch carefully as you cut and not let the saw drift from the mark you originally made. Saw fast enough to cut without stopping, but not so slowly that your teeth jump off the mark. You should be able to cut the PVC pipe relatively quickly.

2 Use a pipe cutter to cut pvc pipe

（1）Get a plastic pipe cutter. There are two types of PVC pipe cutters: scissor style and ratchet style. Scissor style cutters are ideal for 1.3cm to 2.5cm PVC pipe, but are sometimes too difficult to use on larger pipes. Instead, use a ratcheting plastic pipe cutter, ideal for larger pipes and effective for smaller ones as well. It is much more secure and reliable.
The force required to use the scissor-style cutter is sometimes a bit extreme, and it is easier to use a saw of any type. Investing in a ratchet mower will make the job much easier.

（2）Place the pvc pipe in the lower half-moon shaped part of the cutter. Tube cutters have a rounded, open edge for placing the tube, and a blade that extends as you press the trigger on the handle. Mark the place where you want to cut, mount the pvc pipe in the mouth of the cutter and start cutting.

（3）Fit the blade against the tube. Press the trigger on the clipper handle to extend the blade and cut the tube in half. Use your other hand to hold the tube firmly when cutting. It shouldn’t be a very difficult job.

 

3.Cut pvc pipe with a miter saw

（1）Consider using a miter box to make more specific cuts. You can use a miter saw on PVC projects that require a lot of specific and detailed cuts. Use a blade with the appropriate number of teeth for the cut and available saws. When in doubt, use a standard 10 tooth per inch (TPI) wood saw, which is included in most miter saws. However, it will depend on the particular brand and style of saw you have.

（2）Place the PVC pipe under the sheet where you need to cut. Miter boxes are the easiest thing to use in the world, as you have cut lines indicated on the box. You cannot fail.

（3）Secure the tube with a working clamp. Activate the blade and lower it at a fairly low speed. Once you’ve made the cut, you can easily repeat the process, making any additional cuts needed.

4 If you don’t have the tools above, you can use white paper and a hacksaw

First prepare white paper and sawtooth, then draw mark on PVC pipe. Wrap the PVC pipe with white paper to make the PVC pipe more straight. Please see the video for details.

 

Pvc pipe and fitting size chart

 

Tips

Regular wood saws have teeth too far apart and will not cut PVC properly.
Cutting PVC pipe with any of the following tools is not recommended:
Table Saw: Never use a table saw to cut PVC pipe. This material is curved. The surface of a table saw is flat and often smooth to allow wood to pass through easily. Pushing a PVC pipe into a table saw can cause it to slip and cause serious injury to the user.
Band saw: A band saw blade moves too slowly and unless you use a fine tooth blade it can cling to the inside diameter of the tube, causing cracks and chips that are a potential hazard.

Warnings

Always wear eye protection when cutting PVC pipe. If the tube is old and brittle, it may crack and fragments may fly out.

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How to distinguish the quality of PVC pipe and fitting?

 

4 steps to distinguish the quality of PVC pipes and fittings

       1. Judging from the appearance

       a. From the color point of view, standard high-quality PVC-U pipes and fittings are light beige, with good surface gloss and oiliness, which are high-quality products. The inner wall is also very smooth. The PVC pipe fittings are well designed to realize the inner The surface connection is smooth and smooth, and the PVC water supply pipe and drainage are very smooth.
　　
      b. If the color of PVC pipes and fittings is too pale, it means that the calcium powder added to the product may be excessive, which is a substandard product.
　　
  c. If the PVC pipes and pipe fittings are black and yellow, and there are many spots, it means that the manufacturer may have added too many miscellaneous materials and recycled materials to the product.

      2. Judging from the weight

       a. Compare the weight of two pipes with the same diameter and wall thickness. The weight of the calcium powder is too much, the material is impure, and it cannot meet the requirements.
　　
　　b. PVC pipes and pipe fittings with heavy hand feel have a lot of calcium powder added. According to national standards, PVC pipes and pipe fittings for different purposes are subject to corresponding standards. There are certain restrictions on adding calcium powder, which is reflected in the proportion of finished products. Some manufacturers desperately add calcium powder in order to reduce costs, which affects other performance indicators.
　　
　　c. Some pipes are evacuated, and the wall thickness at both ends meets the requirements, but the middle wall thickness is thinner, which does not meet the requirements for use. At the same time, the cost is reduced through the method of evacuating.

　 3. Judging from the hardness

         a. Test the quality of PVC pipes and fittings by stepping on them. If possible, you can step on the edges of the PVC pipes and fittings with your feet to see if they can be easily broken. As long as the hardness and toughness of any good PVC pipe are very strong, even if it is rolled by a car, it will only be flat and not broken.
　　
　　b. Inferior PVC pipes and fittings are mixed with excessive calcium powder during production, and they are easily broken when subjected to heavy pressure. In order to save costs and increase profits, some manufacturers add excessive amounts of calcium powder to the production of pipes. Such pipes are cheap, but their hardness is much lower, fragile, and unqualified.

4. Judging from the inspection report

   a. The product test report is an intuitive presentation of product quality. Regular manufacturers will conduct regular product tests. You can directly ask the manufacturer for product test reports to check the authenticity.

1. Test report: The test report of the pipe and the test report of its health indicators should be obtained. It is best to look at the original.

2. Technical indicators;

3. Vicat softening temperature ≥ 80 ° C;

4. Longitudinal retraction rate ≤5%;

5. There is no change in the impregnation surface;

6. drop weight impact test (0 ° C) TIR ≤ 5c / o;

7. Hydraulic test in 20 degree environment, the ring stress is 36MPa/38Mpa, no crack after 1 hour, no leakage.

 b. Ignite it with fire to see if it has a pungent smell and whether it is self-extinguishing from the fire. If it has a pungent smell, it means it is not environmentally friendly and harmful to the human body. Whether it is self-extinguishing from the fire is to judge whether it is flame retardant. It is also a very important indicator.

The PVC pipes and fittings produced by Shijiazhuang Xingyin Import and Export Trade Co., Ltd. are of very good quality, using the latest and greatest virgin materials

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What is a pe water supply pipe?

 PE water supply pipe is a pipe made of special polyethylene as raw material and extruded by a plastic extruder at one time. It has good weldability, environmental strain resistance, and rapid stress cracking resistance. It can be used safely for more than 50 years under rated temperature and pressure. Except for a few strong oxidants, it can withstand various chemical media. PE water supply pipe has good toughness, high impact resistance, and will not break the pipe due to external gravity. The strength of the hot melt or electric melt interface is higher than that of the pipe body, and the joint will not be broken due to soil movement or live load. The pipeline is light in quality, simple in welding, convenient in construction, and greatly reduces the project cost. The small diameter PE water supply pipe can be coiled, which reduces the number of interfaces and is convenient to connect. Mainly used in urban and rural tap water supply pipelines; gas pipelines (natural gas, liquefied gas, man-made gas, etc.); coal mine ventilation pipelines, slurry pipelines; centralized heating jackets; seawater and corrosive media pipelines; petroleum and chemical pipelines; sewage Pipe, cable sheath; water conservancy and farmland irrigation, etc.

 

 

 

Product specifications

Features of pe water supply pipe:

Corrosion resistance

Polyethylene is a non-inert material, except for a small number of strong oxidants, it can withstand a variety of chemicals, and is not easy to breed bacteria. It is well known that the reason why steel pipes and cast iron pipes are replaced by plastic pipes is not only because plastic pipes have lower water consumption, lower life energy consumption, lightweight, small water flow resistance, simple and rapid installation, low cost, long life, and heat preservation function. It is also better than steel pipes and cast iron pipes because of its corrosion resistance and microbial resistance.

Flexibility

Polyethylene has unique flexibility and excellent scratch resistance. The flexibility of the polyethylene piping system has huge technical and economic value. The flexibility of polyethylene is an important property, which greatly improves the value of the material for pipeline engineering. The good flexibility allows the polyethylene pipe to be coiled and supplied in a longer length, avoiding a large number of joints and pipe fittings.

Low-temperature resistance

Polyethylene has very outstanding low-temperature resistance. The low-temperature embrittlement point of pe water supply pipe is -70℃, which is better than other pipes. Infield construction in winter, polyvinyl chloride (PVC-U) pipes are prone to brittle cracks. An experience summarized in the pilot project of laying polyvinyl chloride (PVC-U) buried water supply pipes in the Beijing area is that the temperature is not suitable for operations below zero. The laying of polyvinyl chloride (PVC-U) pipe was constructed.

Fracture toughness

Polyethylene has good fracture toughness with rapid crack growth. In the event of rapid crack growth and destruction, the crack can rapidly expand from several hundred meters to ten kilometers at a speed of 100-45m/s, causing damage to long-distance pipelines, large-scale leakage accidents, and subsequent combustion explosions (gas transmission) or floods ( Water delivery) accident.

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