Pex ball valves for compression fittings

How to Secure Pex Shut Off Valve: 5 Steps [DIY]

Last Updated on May 16, 2023

When installing a PEX shut-off valve, safety and preventing leaks should be a top priority. You need to follow the right steps to ensure the installation is secure and leak-free.

To start, turn off your home’s water supply, drain the pipes, and cut the PEX tubing. Proceed by attaching the shut-off valve and testing for any leaks before switching the water supply back on.

Let’s discover a foolproof method for installing a secure PEX shut-off valve with our step-by-step guide. Gain peace of mind knowing your plumbing is properly set up by following our comprehensive instructions. Keep reading to learn more.

A Step-by-Step Guide on How to Secure Pex Shut Off Valve

How to Secure PEX Shut Off Valve

To securely install a PEX shut-off valve, a few crucial steps must be taken. Please follow these guidelines carefully:

Step 1: Turn Off the Water Supply

Locate your home’s main shut-off valve to turn off the water supply. This valve may be located near your home’s water meter or in a utility room. Turn the valve clockwise until it stops rotating, indicating that the water supply has been successfully turned off.

Step 2: Drain the Pipes

Locate the lowest faucet in your home and open it fully to release any trapped water. Open all other faucets in your home and flush toilets until no more water flows out. Then, turn on any outside spigots or bibs and let them run until they stop flowing.

Step 3: Cut the PEX Tubing

Now you have to cut the PEX tubing. Choose the appropriate tool for cutting the tubing. A PEX tubing cutter is the best option, as it’s designed specifically for this purpose and ensures a clean, straight cut.

But a utility knife or saw can also be used in a pinch. If using a knife or saw, be sure to make a straight, clean cut to avoid damaging the tubing.

To use a PEX tubing cutter, simply open the cutter jaws, place the tubing inside, and close the jaws firmly. Rotate the cutter around the tubing until the blade cuts all the way through.

Keeping the cutter perpendicular to the tubing is important to ensure a straight cut. If the cut is not straight, it may cause leaks or difficulty when fitting the tubing.

After cutting the tubing, removing any burrs or rough edges is important to prevent damage to the fittings or any other plumbing or heating system components.

Step 4: Attach the Shut-off Valve

Slide the PEX fitting onto the shut-off valve, making sure it’s fully seated before crimping them together with a crimping tool.

Ensure that the crimp ring is placed over the PEX tubing and the fitting’s barbs, then use the crimping tool to compress the crimp ring. This creates a secure connection between the valve and the PEX tubing.

Next, attach the compression nut and ferrule onto the PEX tubing before sliding it onto the valve’s other end. Position the nut and ferrule over the PEX tubing and thread the nut onto the valve.

Use a pipe wrench to tighten the nut, being careful not to over tighten it, which could damage the components. Teflon tape may also be needed around the compression nut for additional security.

Step 5: Test for Leaks

Before turning on the water supply, it is crucial to thoroughly test for leaks in all connections and fittings of the newly installed piping system to prevent any potential damage or hazards.

This step should be taken seriously to ensure that there are no leaks or damages that could cause further problems down the line.

Here are a few ways to effectively conduct a leak test:

  • Check all fittings: Make sure that every fitting is tight and secure.
  • Apply pressure: Pump up the system with air or nitrogen, then monitor it for changes in pressure.
  • Inspect visually: Look for signs of moisture around the joints, which can indicate a leak.
  • Listen carefully: If there is still air in your pipes, listen closely for any hissing sounds that may indicate air escaping through an unsealed joint.

Can You Put a Pex Shut-Off Valve on Plastic Pipes?

Can You Put a Pex Shut-Off Valve on Plastic Pipes

The compatibility of PEX shut-off valves with plastic pipes depends on the specific type of plastic pipe being used, as some are rated for use with PEX fittings while others are not.

If you have a plastic pipe rated for use with PEX fittings, such as CPVC or PVC pipes, then installing a PEX shut-off valve without any issues is safe.

These plastic pipes have been tested and approved for use with PEX fittings, ensuring they can withstand plumbing systems’ pressure and temperature changes.

But, if you have a plastic pipe that is not rated for use with PEX fittings, then installing a PEX shut-off valve can cause leaks and damage to the pipe.

This is because these plastic pipes may not be able to handle pressure and temperature changes when combined with incompatible materials like PEX fittings.

At What Temperature will Pex Shut Off Valve Tubing Withstand?

PEX tubing has impressive heat resistance, being able to withstand temperatures of up to 200 degrees Fahrenheit. This makes it suitable for various hot water applications in residential and commercial settings. But, it is important to note that the temperature limits may vary depending on the PEX type and manufacturer.

To ensure that PEX tubing is used within its temperature limit, it is crucial to consult the product specifications provided by the manufacturer.

The specifications will provide information on the maximum temperature limits as well as other factors, such as pressure ratings and compatibility with different types of fittings.

It is also recommended to work with a licensed plumber or contractor who can help ensure that all installation procedures follow industry standards and local building codes.

How can you find a quality and affordable shower valve for PEX?

How can you find a quality and affordable shower valve for PEX

Discovering a high-quality and reasonably-priced PEX shower valve may be difficult but achievable. Conducting thorough research and seeking out reliable brands that provide products that meet your requirements is vital.

But you don’t have to look far, as we have already reviewed some quality and affordable shower valves for PEX. You can easily find the most affordable shower valve for PEX that meets your needs and budget by checking out our review. Remember to consider factors such as durability, ease of installation, and compatibility with your plumbing system.

How often should you check the PEX shut off valve for security?

Ensuring the safety of your plumbing system requires regular maintenance, and it is recommended to inspect the shut-off valve connected to your PEX tubing at least once every year. This valve controls water flow throughout your home, allowing you to turn off the water supply to specific areas when necessary.

Checking the security of this valve involves examining it for any signs of leaks or damage that could potentially cause significant water damage if left unchecked.

If you notice any leaks or damage during your inspection, replacing the valve as soon as possible is essential. Even small leaks can accumulate over time and lead to costly repairs.

Besides yearly inspections, it’s also wise to check this valve periodically if you suspect there may be an issue with your plumbing system.

For example, if you have recently experienced low water pressure or discolored water coming from your tap, these could be signs of a problem with either the shut-off valve or other components in your plumbing system.

Will PEX fittings freeze and bust?

In colder temperatures, there is a risk of damage to the fittings in a home’s plumbing system due to freezing. PEX fittings are no exception, but they do have an advantage over other materials.

The PEX is made of flexible plastic that can expand under pressure during a freeze, significantly lowering the likelihood of bursting.

Install and Secure Your PEX Shut-Off Valve with Ease

Securing a PEX shut-off valve is an essential step in maintaining the integrity of your plumbing system. By following the above steps, you can install a shut-off valve easily and securely.

Remember to shut off the water supply to your home, drain the pipes, cut the PEX tubing accurately, attach the shut-off valve with secure fittings, and test for leaks before turning the water supply back on.

If you encounter any issues, seek the help of a professional plumber. By following these instructions, you’ll have a leak-free and safe plumbing system for a long time.

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