Do PEX crimp rings leak?

Asked By: Waseem Goicocheta | Last Updated: 11th February, 2020
Category: home and garden home appliances
4.2/5 (1,721 Views . 25 Votes)
Repairing PEX Tubing
As with any other pipes, PEX is not prone to leaking. If you're using a crimp or clamp connection systems (both being very popular), using brass PEX fittings with copper or stainless steel crimp rings is the most inexpensive method of repairing PEX tubing.

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Herein, are PEX crimp rings reliable?

PEX crimp and PEX clamp connections use the same fittings, normally referred to as “crimp” or “barbed” PEX fittings. Stainless steel clamp rings resist corrosion more effectively than copper crimp rings, which can be a major benefit in direct-burial applications. PEX clamps also tend to be easier to remove.

Beside above, which PEX crimp ring is best? The stainless steel Cinch Clamps are stronger than the copper Crimp Rings. I know this from personal experience after working with frozen water lines. When the fitted connection freezes with water in the line it will cause the copper Crimp Ring to expand just enough to cause a leak when it thaws.

Then, why do my PEX fittings leak?

As with any other pipes, PEX is not prone to leaking. Nearly all of the plumbing leaks occur at joints (connection spots) and most of them are due to incorrect installation. Much like installing PEX tubing, repairing it is also an easy process.

Why is PEX banned in California?

Church, executive director of the Plastic Pipe and Fittings Association. Uponor Wirsbo said its PEX pipe was introduced in California in 1990 and that the product helps solve problems in areas with aggressive soil conditions that copper pipe cannot solve.

37 Related Question Answers Found

Why is PEX plumbing bad?

PEX failures
Piping fails when the pipes are exposed to chlorine that is within the water, exposure to direct sunlight before its installation. Furthermore PEX pipe is vulnerable when it comes in contact with such solutions as petroleum products and oxygen. It can leach toxic chemicals from pipe material also.

What are the disadvantages of PEX?

PEX Plumbing Disadvantages
  • PEX may leach BPA and other toxic chemicals.
  • PEX is extremely sensitive to UV light.
  • PEX can be damaged by chemicals and pests.
  • PEX can't be installed in high heat areas.
  • PEX is semi-permeable, which means liquid can enter the pipe.

Can you use crimp rings on SharkBite PEX?

The crimp system uses copper crimps to connect PEX pipe to SharkBite barb fittings and is very cost effective, especially for large jobs. Place the correct sized crimp tool over the crimp ring and squeeze fully. Use a go/no-go gauge to check that the connection is correct.

Can I use hose clamp on PEX?


Yeah they are not for use on gas and no hose clamps will not work you don"t get even compression all the way around with hose clamps so it will leak.

Can you use PEX for water meter to house?

PEX tubing is rated for potable water and is safe for use in drinking water applications. The installation process for the tubing pipes requires less labor, which makes the systems less expensive. PEX is less expensive, and fast to install, while copper is more expensive and can burst in cold weather.

Does PEX reduce water flow?

Pex/plastic pipe have higher flow rates than copper. However pex fittings ID (inside diameter) is smaller than the pipe of the same size, so it actually does impede water flow.

How do you fix a pinhole leak in PEX?

Pinhole leaks are commonplace and the only way to properly fix them is by removing the leaking section of pipe and replacing it, with either copper, PEX, or PVC pipe. Copper and PEX piping are the preferred alternatives and can be used in place of the leaking pipe by using sharkbite couplings.

Are SharkBite fittings reliable?

If you need to repair or replace copper plumbing in your home, a SharkBite fitting is an excellent choice. Sharkbites are approved for use underground and behind walls, but installing them there could be risky. A SharkBite fitting contains a rubber O-ring, which is not best for permanent connections.

Can you crimp PEX?


PEX Crimp Fittings
Crimp fittings require copper or stainless steel crimp rings and a PEX crimp or clamp tool. Some manufacturers use O-rings on their metal fittings (manufactured to ASTM 2434 standards) to make the seal with the tubing. Crimp fittings are compatible with all types of PEX tubing, except for PEX-AL-PEX.

Can you crimp PEX with pliers?

Yes, you should use the proper crimping tool that crimps the stainless steel PEX clamp you pictured. Good luck crimping that stainless steel clamp with pliers. You can rent or buy the tool. You can cut the clamps at the crimp point with diagonal cutting pliers or end cutting pliers.

What are the different types of PEX fittings?

Various types of PEX fittings and connection systems
PEX Fitting Type Material* Manufacturers/ brands
Push (Push-fit, Push-to-connect) Brass OmniGrip SharkBite TecTite ProBite GatorBite
Poly John Guest Watts
Expansion Brass Uponor (Wirsbo) Sioux Chief

Do you need special tools for PEX?

PEX tools. To work with PEX tubing using the standard crimping method, three basic tools are needed: the main crimping tool(s), a pipe cutter, and a de-crimping tool. The pipe cutter is used to make a clean, square cut before inserting the tubing into the fitting.

Which is better PEX A or B?

Flexibility - PEX-A is the most flexible, allowing for it to be fastened by cold expansion, which allows the end to be fluted prior to inserting the fitting. PEX B is not expandable and you should never expand the end of a PEX-B pipe. Kink-Resistance - PEX-A has the greatest resistance, PEX-B the lowest.

Can SharkBite be used on PEX?


SharkBite Universal brass push-to-connect fittings are compatible with PEX, Copper, CPVC, PE-RT and HDPE pipe. SharkBite fittings come with a PEX stiffener pre-loaded into the fitting for PEX, PE-RT and HDPE. The PEX stiffener does not need to be removed for Copper or CPVC applications.

How do you cut PEX rings?

To remove crimp rings, you will need a PEX ring cutter tool. First, cut the fitting out of the system as close to the end of the fitting as possible. Then, insert the cutter tool into the fitting and squeeze the handles together to cut the crimp ring band.

What size PEX should I use?

PEX tubes range in diameter from 3/8-inch to 1-inch for residential applications. For adequate water flow, it's a good idea to install 1/2-inch or 3/4-inch PEX for your main lines.