Alexei Volkov
Plastic pipe tubing, also known as PEX, is widely used in plumbing and radiant floor heating. To connect two pieces of PEX pipe, plumbers use metal rings to secure plastic pipes onto fittings. The rings are then squeezed or crimped using a one- or two-hand manual crimping tool. Alternatively, some fittings can be hand-tightened, such as those offered by SharkBite. This article will provide a step-by-step guide on how to crimp a plastic tube using both manual and hand-tightening methods.
| Characteristics | Values |
|---|---|
| Purpose | To connect two pieces of same-sized PEX pipe |
| Angle | 90 degrees |
| Distance of crimp ring from the end of the PEX | 1/8 to 1/4 of an inch |
| Tools | PEX crimping tool, removal tool, depth tool, one-size crimping tool |
| Fittings | SharkBite, Shark or Gator, copper, plastic hand-tightened fittings |
| Cost | One-size crimping tool: $30, Fittings: cheap, Shark or Gator fitting: $8 |
Explore related products
What You'll Learn
Using a crimping tool
When using a crimping tool, the process typically involves two notches or stations on the crimping pliers. The first station, farthest from the tip of the pliers, has a dimple that is used to squeeze the crimp into a figure-eight shape. This step should not be too tight, allowing for some movement. Next, the crimp is moved to the second station, where it is squeezed again to bring the two sides of the "U" together, forming a tube shape. It is important to apply sufficient pressure when crimping, but a death grip should be avoided as it can weaken the crimp.
In addition to the standard crimping pliers, powered crimping tools are also available. These tools are beneficial in tight and awkward spaces, as manual crimping often requires awkward postures and excessive grip force, which can lead to injury. However, the weight and size of powered crimpers can be a concern, especially when working in confined areas.
When working with plastic tubing, it is important to consider the limitations of the workspace. In some cases, a standard crimping tool may not be practical due to space constraints. Additionally, the pipe system being used can influence the choice of tools. For example, PEX tubing is commonly used in plumbing and radiant floor heating, but it requires specific tools and fittings, such as SharkBite products, which are readily available in hardware stores.
The Plastic Mesh in Sod: What's the Deal?
You may want to see also
Explore related products
Using a removal tool
First, it is important to choose the right removal tool for the job. Some tools are designed specifically for removing pipe fittings, such as diagonal cutters or outside snap ring tools. These tools can be purchased from hardware stores or online. It is beneficial to invest in a good-quality removal tool that can make the job easier and faster.
Next, before using the removal tool, it is essential to prepare the plastic tube. This includes measuring and marking the tube to ensure an accurate cut. It is also crucial to consider the workspace and ensure that there is enough room to operate the tool comfortably. In confined spaces, some removal tools may not be suitable, so it is essential to choose a tool that fits the work area.
Once the tube is marked, the user can start cutting. Using the chosen removal tool, cut the plastic tube square with a sharp blade or knife. It is important to cut only the pipe and avoid cutting too deeply, as this may affect the performance of the fitting. A steady hand and a new, sharp blade will help ensure a clean and precise cut.
After cutting the tube, the user can now remove the fitting. In some cases, the fitting can be simply pulled off by hand. If the fitting is tight, the user can use the removal tool to grip the fitting and turn it until it pops open. Alternatively, a heat gun can be used to soften the plastic and loosen the fitting, making it easier to remove. However, caution must be exercised when using a heat gun to avoid overheating and releasing unhealthy fumes.
Finally, once the fitting is removed, it is important to clean up the work area. This includes disposing of any plastic shavings or debris safely and responsibly. It is also good practice to inspect the tube and fitting to ensure a proper seal and no leaks. If there are any issues, it may be necessary to repeat the process or seek professional assistance.
Plastic Beads: Why Do They Have Bubbles?
You may want to see also
Explore related products
Using a depth tool
First, ensure that you have the correct size of the crimp tool for your tube. For 1mm tubes, a Micro Crimper is recommended, while a Bead Crimper Tool is suitable for 2mm tubes. For larger tubes of 3mm and 4mm, a Mighty Crimper or Bent Chain Nose Pliers are suggested. Bent Chain Nose Pliers are also recommended for round and twisted crimp tubes.
Before beginning the crimping process, it is important to turn off the water supply if you are working on pipes connected to the water system. Cut the PEX pipes to the desired length, ensuring precise edges. Using a PEX pipe cutter suitable for the pipe size can help achieve better results.
Determine the right crimp ring size by matching it to the size of the PEX pipe. Slide the crimp ring to the end of the pipe, positioning it accurately to avoid compromising the connection. Insert the connector joint into the end of the PEX pipe, where the crimp ring is located.
Now, you can begin the crimping process using the PEX crimp tool. Open the jaws of the tool and place them around the crimp ring. Squeeze the handles to exert pressure on the joint until you hear a clicking sound. This indicates a secure connection.
To make a joint between two pipes, insert the connector fixed on the first pipe into the second pipe. Place the jaws of the crimping tool over the crimp ring and apply pressure until you hear the clicking sound again. You can use a crimp gauge to confirm if the connection is secure. Slide the "go" side of the gauge over the crimp ring; if it passes through while the "no go" side doesn't, this signifies a successful crimp.
By following these steps and using the appropriate depth tool, you can effectively crimp plastic tubes, ensuring secure connections for your project.
Cats Chewing Plastic: Understanding Their Strange Habit
You may want to see also
Explore related products
Using a clamp
If you choose to use a hose clamp with PEX tubing, you must first heat the tubing with a heat gun or hair dryer to soften the end. Then, tighten the clamp. Alternatively, you can cut the tubing square with a sharp knife and use a hand-tightened fitting, such as a SharkBite fitting. These fittings are slightly longer than the crimped variety and can be purchased at hardware stores such as Ace, Home Depot, and Lowes.
If you plan on doing a lot of PEX work in the future, it may be worth investing in a one-size crimping tool, which typically costs around $30. With this tool, you can also purchase inexpensive fittings, such as shark or gator fittings for $8 each. This option may be more cost-effective in the long run if you anticipate doing multiple projects.
When using a clamp to crimp a plastic tube, it is important to consider the size and thickness of the tube and the amount of clamping force required. You may need to adjust the width of the clamp to ensure a secure fit. Additionally, you can link multiple clamps together or use rubber bands to increase the clamping force.
Building a Corrugated Plastic Roof: DIY Guide
You may want to see also
Explore related products
Using a hand-tightened fitting
Plastic compression fittings are found at any location with a sink or a source of tubing that holds water, gas or lubricant. They are useful for repairs, but they also make repairs necessary more often. Plastic compression fittings wear out faster if they are in a location where they are moved often, such as the back of the refrigerator or a movable dishwasher.
To crimp a plastic tube using a hand-tightened fitting, you can use a brand such as SharkBite, which can be found at Ace or Home Depot. You can also use copper fittings for PEX tubing, which are considered the best. However, you can also use hose clamps if you heat the PEX tubing with a heat gun or hairdryer to soften the end and then tighten the clamp.
To install a hand-tightened fitting, begin by cutting the PEX tubing square. Then, slip the crimp ring onto the tubing and insert the fitting, ensuring it is fully seated. Before crimping the ring, position it about 1/8 inch to 1/4 inch from the end of the tubing, aiming to have the ring over the fitting's central ribs. If using a manual tool, ensure it is square to the tubing and squeeze the handles fully. Power tools must also be held square, and the tool should cycle fully before releasing it.
It is important to note that compression fittings should only be tightened until you feel resistance when turning them. Overtightening can cause the plastic pipe to crack and leak. Additionally, metal compression rings should not be used with plastic pipes, as they can cause instant splits and leaks.
Sanitizing Plastic Algae Jars: A Step-by-Step Guide
You may want to see also
Frequently asked questions
You will need a crimping tool. You can buy a one-size crimping tool for around $30, or a crimping tool with four interchangeable jaw sizes. You can also rent a PEX crimping tool kit.
First, cut the pipe cleanly and squarely, ensuring it is free of scratches and debris. Insert the barb fitting onto the pipe and position the crimp or clamp ring 1/8 or 1/4 inches from the fitting shoulder. Position the open jaws of the PEX crimp tool over the centre of the crimp ring at a 90-degree angle and close the handles completely.
The SharkBite system has a gauge to test the tightness of the crimp ring. The 'GO' slot should fit over the crimp ring, and the 'NO-GO' slot should not fit over it.
You can use SharkBite fittings, which are more expensive but work well in tight spaces. You can also use hand-tightened fittings, which can be removed by cutting the tubing square with a sharp knife.
