Omar Khalid
Cross-linked polyethylene piping, or PEX, is a type of durable plastic that is widely used in plumbing. Its flexibility, strength, and ease of cutting and connecting make it a popular choice. However, one common challenge with PEX is its tendency to come in tightly coiled rolls, making it difficult to unroll and straighten. This has prompted the development of various methods and tools to facilitate the straightening process, ensuring proper installation and minimizing issues like pin-hole leaks. In this discussion, we will explore techniques for effectively unrolling and straightening black plastic pipe, addressing common challenges and providing practical solutions.
Characteristics and Values of Properly Unrolling Black Plastic Pipe
| Characteristics | Values |
|---|---|
| Type of Pipe | PEX PVC pipe, Poly Pipe |
| Properties | Flexible, durable, high-density polyethylene, cross-linked for strength |
| Issues | Difficult to unroll and straighten due to tight coils |
| Length | Typically 100 to 300 feet long |
| Methods | 4 common methods, including tools to fasten and adjust rolls |
| Heat | Using heat guns can cause physical changes, leading to breakage |
| Alternatives | Copper pipe with copper/brass vibrasorbers for commercial isolation |
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What You'll Learn
Common methods for unrolling PEX PVC pipe
PEX PVC pipes are known for their flexibility and ease of use. However, one common issue people face is not being able to straighten them out for installation. Here are some common methods for unrolling and straightening PEX PVC pipes:
Manual Unrolling
One way to unroll PEX is to start at the end of the roll and carefully unroll it, similar to how you would unroll a coil of electrical wire. Stand on one end of the tubing and slowly walk on the tubing as you unroll it. You can also have someone hold one end of the tube while you unroll it, maintaining tension to keep it straight.
Using a Piping Uncoiler
A piping uncoiler is a tool designed to help unroll and straighten PEX piping. Place the coil of PEX inside the uncoiler, grab one end of the tube, and pull on it as you unroll. This method is faster and easier but may be more expensive due to the cost of the uncoiler.
Using a Tabletop Straightening Tool
Tabletop PEX straightening tools are compact devices that fasten to a nearby surface, such as the floor. You run the PEX tubing through the tool as you unroll it, allowing you to straighten the pipe without having to manually apply pressure. This option is best if you frequently work with PEX.
Using Bungee Cords
If you want to control the unrolling process and prevent the coils from "exploding" in all directions, you can use bungee cords to keep the coils in check. Leave the cords on and unroll only the amount of tubing you need, maintaining control over the rest of the coil.
Remember, PEX PVC pipes come in rolls that are tightly bound, resulting in coils that can be challenging to unroll and straighten. These methods will help you effectively manage and straighten the piping for your installation needs.
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Using tools to unroll PEX pipe
PEX pipe typically comes in rolls that are 100 to 300 feet long. The rolls are bound together, resulting in tightly coiled PEX that can be challenging to unroll in a straight line. Here are some methods and tools to help you properly unroll and straighten PEX pipe:
Using a Piping Uncoiler
One effective method to unroll PEX pipe is to use a piping uncoiler. Place the coil of PEX inside the uncoiler, grab one end of the tube, and pull on it. While this method can be pricey, it is one of the fastest and easiest ways to straighten PEX pipe.
Manual Unrolling Techniques
If you prefer to unroll the PEX pipe manually, there are a few techniques you can use:
- Stand on one end of the PEX tubing and start unrolling it, walking on the tubing as you go. You can also have someone hold one end of the tube while you unroll it.
- Unroll the PEX pipe in the same way you would unroll a coil of electrical wire.
- As you unroll the PEX pipe, force-bend it in the opposite direction gently to straighten it out. Be careful not to kink the pipe.
Using Hot Water or Heat
Some people suggest using hot water or heat to soften the PEX pipe and make it easier to straighten. One method is to attach a fitting to one end of the pipe that can screw onto a hose bib on a water heater. Turn the water heater to maximum heat, run the hot water through the pipe to soften it, then let it cool while stretched out. However, be cautious when applying heat to PEX pipe, as too much heat can damage the material.
Tabletop PEX Straightening Tool
If you frequently install PEX pipe, investing in a tabletop PEX straightening tool can be useful. These tools fasten to the floor or a nearby surface, and you run the PEX tubing through them as you unroll it. They are compact and easy to use, and allow you to adjust the rolls to match different sizes of PEX.
Using a Pipe Clamp and PVC Pipe
Another DIY method to unroll PEX pipe is to use a pipe clamp and PVC pipe. Use a 3' long 3/4" pipe clamp, clamped on a 2x4" stud, and cover the pipe clamp with a piece of 1-1/2" PVC pipe to protect the PEX as it unrolls. Pull the length of PEX pipe you need, and if the coil is heavy, support the outer end with another pipe clamp. This creates an axle for the PEX coil to revolve around as you pull, making it easier to manage.
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Why it's important to keep PEX pipe straight
PEX pipe, or PEX PVC pipe, is a type of cross-linked polyethylene piping made of high-density polyethylene. It is a popular material for plumbing due to its flexibility, ease of use, and durability. However, one common issue with PEX pipe is that it often comes in tightly coiled rolls, making it challenging to unroll and keep straight during installation.
It is important to keep PEX pipe straight for several reasons. Firstly, straightening the pipe improves its overall appearance and makes it easier to work with during installation. Straight pipe sections are particularly useful for small repairs or when only short lengths of pipe need to be installed. Secondly, PEX pipe is naturally flexible, and if left in a tightly coiled state, it may develop kinks or bends that can affect water flow and cause blockages. Kinks in the pipe can lead to reduced water pressure and even pipe bursts if not addressed promptly.
Additionally, keeping PEX pipe straight helps to prevent pipe damage over time. PEX pipe expands and contracts with changes in temperature, and if it is not straight, it may rub against abrasive surfaces, leading to wear and tear. Straightening the pipe allows for the use of protective measures, such as abrasion clips or pipe insulation, to safeguard against potential damage. Furthermore, straight pipe sections are easier to cut and connect, ensuring a more secure and leak-proof installation.
While it is important to keep PEX pipe straight, it is also essential to note that PEX is flexible by nature and can bend around corners or obstacles. This flexibility can be advantageous in certain situations, such as when plumbing requires bends or when installing pipes in confined spaces. However, for longer straight runs, it is generally recommended to straighten the PEX pipe to avoid potential issues and ensure optimal water flow.
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How to prepare PEX pipe for installation
PEX pipe is loved for its flexibility and ease of use. It is also a softer material, which means it is easier to cut and make connections, but without compromising strength and durability. However, one of the only issues that people have when using PEX is not being able to straighten it out. PEX pipe typically comes in rolls, similar to a roll of tape or electrical wiring, and is often 100 to 300 feet long. The rolls are also bound together, which results in tightly coiled PEX that's difficult to unroll in a straight line.
- Design the pipe's configuration: Determine the layout of your design, the type of diverter, and the number and configuration of water. If you do not have experience in this area, consult a professional plumber.
- Select the appropriate fittings: Choose fittings that are specifically designed for use with PEX pipes. The type of fittings needed depends on the configuration of your PEX system. For instance, when branching off, you need tee fittings, and when changing the direction of PEX pipes, elbow fittings are essential.
- Cut the PEX tubing: Use a scissors-like cutter or a PEX pipe cutter to cut the PEX tubing to the desired length.
- Prepare the connections: There are several methods for connecting PEX pipes. One common method is to use stab-in fittings, such as SharkBite, which don't require soldering. Another method is to solder in a tee and a PEX supply adapter, then slip the PEX supply tubing over the adapter.
- Straighten the PEX pipe: There are several methods to straighten PEX pipe, including using a tool that fastens to the floor or a nearby surface and running the PEX tubing through it as you unroll the pipe.
- Test the system: Once you have installed the PEX water lines, pressure test the system to ensure there are no leaks. You can use compressed gas or hydrostatic testing.
Remember to check with your local plumbing inspector or building inspector to ensure that PEX and your chosen connection method are allowed in your area.
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The benefits of using PEX pipe
To properly unroll black plastic pipe, it is important to note that the pipe should be unrolled in a straight line. The pipe typically comes in rolls, similar to a roll of tape, and is often 100 to 300 feet long. The rolls are bound together, resulting in tightly coiled pipes that can be challenging to unroll.
Now, here is some information on the benefits of using PEX pipe:
Cross-linked polyethylene piping, or PEX, is a durable plastic that is revolutionizing the plumbing industry. PEX is a fantastic alternative to traditional copper or galvanized steel pipes for hot and cold water supply lines. It is flexible, easy to use, and strong, making it a popular choice for plumbing applications.
One of the most significant advantages of PEX is its longevity. PEX has a far longer life than copper, which can develop pinhole leaks within a few years due to normal operating conditions and mineral buildup. PEX manufacturers often offer 25-year warranties, whereas copper typically does not provide a warranty once it comes into contact with water.
Another benefit of PEX is its freeze resistance. In colder climates, PEX is less susceptible to damage from freezing temperatures, as seen in Texas when copper pipes blew out due to a hard freeze. PEX is also more flexible and available in long lengths, making it ideal for "fishing" through walls during remodelling projects.
Additionally, PEX is cost-effective and easy to install. It is generally less expensive than copper, with lower material and installation costs. The lightweight and flexible nature of PEX tubing simplifies installation in tight spaces and around obstacles, reducing the need for fittings and further lowering costs.
While PEX offers numerous benefits, it is important to consult with a licensed plumber to ensure it complies with local building codes and is suitable for your specific needs.
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Frequently asked questions
Black plastic pipes, also known as PEX pipes, typically come in tightly bound coils of 100 to 300 feet in length, making it challenging to unroll them in a straight line.
While there are several methods to straighten PEX PVC pipes, using a tool that fastens to the floor or a nearby surface is one common approach. The pipe is unrolled through this tool, and it can be adjusted to accommodate different pipe sizes.
Black plastic pipes, made of cross-linked polyethylene, offer a combination of hardness, flexibility, and durability. They are also loved for their ease of cutting, installation, and ability to make connections without sacrificing strength.
Black plastic pipes, or PEX, offer more flexibility compared to PVC pipes. Poly pipes, while flexible, are prone to pin hole leaks, which can lead to repairs.
Black plastic pipes are commonly used in plumbing applications, revolutionizing the industry with their flexibility and ease of use. They are often preferred for their ability to reduce noise and vibration transmission in structures.
