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Types of PEX Fittings:
- Crimp Fittings: These are the most common type of PEX fittings. They require a crimp tool to compress a metal ring (crimp ring) around the PEX pipe and fitting, creating a secure connection.
- Push-Fit Fittings: Also known as push-to-connect or quick-connect fittings, these fittings don't require any special tools. They have a ring inside that grips the PEX pipe securely when pushed together.
- Compression Fittings: These fittings use compression nuts and rings to create a watertight seal. They are commonly used for repairs or when transitioning between PEX and other types of pipes.
- Expansion Fittings: Expansion fittings use a specialized tool to expand the PEX pipe, allowing the fitting to slide inside. When the pipe returns to its original size, it creates a tight seal around the fitting.
Installation Steps:
- Prepare the Pipe: Cut the PEX pipe to the required length using a PEX pipe cutter. Ensure that the cut is clean and square.
- Deburr the Pipe: Use a deburring tool to remove any rough edges or burrs from the cut end of the pipe. This ensures a smooth connection and prevents damage to the fitting.
- Insert the Fitting: For crimp fittings, slide the crimp ring onto the pipe first, then insert the fitting into the end of the pipe until it reaches the shoulder of the fitting.
- Crimp the Ring: Position the crimp ring over the fitting and pipe joint, ensuring it is centered. Use a crimp tool to compress the ring firmly around the pipe. Check the manufacturer's specifications for the correct crimping tool and technique.
- Check the Connection: After crimping, visually inspect the connection to ensure that the crimp ring is fully compressed and there are no gaps between the pipe and fitting.
- Pressure Test: Once all fittings are installed, pressure test the system to ensure there are no leaks. This involves pressurizing the system with air or water and checking for any drops in pressure over a period of time.
Charactor Club
Reviewed in the United States on August 14, 2023
I read the reviews prior to ordering and there were red flags about leaking...let's just say that the reviews were correct. 5 out of 10 of these fittings leaked, therefore I would not recommend them. I lost time and money having to replace the leaky fittings, replace the pipe and all the crimps attached...it was also quite annoying to have to re-do plumbing work that was finished.
Paulie
Reviewed in the United States on June 18, 2022
We own a mobile rv repair company. We go through pex fitting like most people go thru cigarettes. Much cheaper and appear to be the same quality you buy at the big box stores.
Danny P. Crain
Reviewed in the United States on November 26, 2022
The fittings seem fine but the sealing washers do not fit the part. Almost all of them leaked no matter how you installed them. Terrible quality. Many hours of work lost- will have to be replaced unless I can find the correct sealing washers
Kim
Reviewed in the United States on March 7, 2021
Good quality. Good price.
Ryan Pirila
Reviewed in the United States on November 9, 2021
A few of the fittings the plastic threads were off and wouldn’t thread on tight swap with another fitting and no problem seems like cheap parts low quality
R. Everton
Reviewed in the United States on June 29, 2020
Nice
larry barello
Reviewed in the United States on October 28, 2020
One out of 10 failed. I never determined what, exactly the problem was, but it leaked between the seal and the fitting. All others sealed with reasonable (finger) tightening to NPT and BSP nipples and seem reliable with vibration, etc. of normal driving and rough roads (camper van). Definitely an improvement over adapters and couplers in that it was easy and removable for maintenance, etc.
Denis C.
Reviewed in the United States on May 3, 2019
great price and a good quality
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