Table of Contents

Introduction

Nowdays, Pex pipes are widely used all over the world. But do you know how many types of fittings for pex pipe connection with pex plumbing fittings? This article will share this information with you. For pex pipe connection, we most use plastic pex fittings and brass pex fittings. The plastic pipe fittings, made from high-performance plastic, these fittings are corrosion-resistant and suitable for potable water applications. They also come in various styles such as tees, couplings, and elbows. But brass pex fittings are more popular, so we will share more details for the brass pex fittings as below:

Pex Fittings	Standard	Brass Material	Connection Tools	Pipe Size	Main Country
Push Fit /Push in/ Shark bit Fittings	F2854	C46500	No tools required	1/2" to 2"	US
Push Fit /Push in/ Shark bit Fittings	ISO 15875	DZR CW602N	No tools required	16x2.0, 20x2.0, 25x2.5, 32x3.0	Australia, England, etc
Compression Fittings	ISO 15875	CW617N, HPB58-3A	Wrench	16x2.0, 20x2.0, 25x2.5, 32x3.0	Europe, Africa, Mid East, etc
Expansion Fittings	F1960	C46500, CW617N	Expander Tool + PEX A Sleeves	PEX A 1/2" to 2"	US, Russia, Spain, etc
Crimp Fittings	F1807	C46500 or C37000	Crimp (Crimp Tool + Crimp Rings)	1/2" to 2"	US, Mexico
Clamp Fittings	F1807	C46500 or C37000	Clamp (Cinch Tool + Cinch Clamps)	1/2" to 2"	US, Mexico
Press Fittings	ISO 15875	DZR CW602N, CW617N, HPB58-3A	Press (Press Tool + Steel Sleeves)	16x2.0, 20x2.0, 25x2.5, 32x3.0	US, Australia, and countries in Europe, Africa, Mid East
Sliding Fittings （Barbi style）	ISO 15875	CW617N, HPB58-3A	Sliding Press Tool + Brass Ring	16x1.8, 20x1.9,25x2.3, 32x2.9	Spain,Portugal, France, Italy, Brazil, Argentian, etc
Sliding Fittings (Rehau style)	ISO 15875	CW617N, HPB58-3A	Sliding Press Tool + Brass Ring	16x2.2, 20x2.8,25x3.5, 32x4.4	Russia, Ukraine, Germany, Australia, etc

Pex Push fit/ push in fittings - F2854 / ISO 15875

Brass PEX push-in fittings, often known as push-to-connect fittings, represent a significant evolution in plumbing technology due to their innovative design and easy installation process. They are crafted from durable brass for enhanced strength and corrosion resistance, making them an excellent choice for robust plumbing systems.

To install a brass PEX push-in fitting, all you have to do is push the pipe into the fitting. A stainless steel teeth mechanism secures the pipe, while an O-ring within the fitting ensures a watertight seal. This negates the need for any tools, crimps, or solvents, significantly reducing installation time and making it reachable to DIY enthusiasts, as well as professionals.

Brass PEX push-in fittings are versatile and can be used in hot and cold water applications, as well as hydronic heating systems. They are available in many different types such as elbows, tees, adapters, and couplings, catering to a wide array of plumbing layouts.

One of the key benefits of these fittings is their flexibility of use with different types of pipes including PEX, PEX AL PEX, copper, and CPVC. It's also noteworthy to mention their quick and effortless disassembly process, making maintenance or modification of the plumbing system easier. With these benefits, brass PEX push-in fittings represent a modern, efficient solution for robust and leak-free connections in plumbing systems.

Pex compression fittings - ISO 15875

PEX compression fittings are specially designed for connecting PEX tubing. These fittings are ideal for both professional and DIY plumbing projects due to their relative simplicity in installation, requiring no special tools or processes, making them a convenient option for a variety of applications.

PEX compression fittings are typically composed of three parts: a compression nut, a compression ring, and a compression seat. The standout feature of these fittings is their ability to form a tight seal without the need for heat or soldering.

To install a PEX compression fitting, first, the nut is threaded onto the pipe, then the ring is slipped onto the pipe end. The pipe is then fit onto the seat and the assembly is completed by tightening the nut. As the nut is tightened, it causes the ring to compress against the pipe and the seat, creating a watertight joint.

Fabricated from resilient materials like brass and plastic polymers, PEX compression fittings prove to be durable, resilient to high temperatures, and resistant against corrosion. This offers longevity to your plumbing installations. What’s more, the pex compression fittings is reusable.

Pex expansion fittings (for pex a) - F1906

Brass PEX expansion fittings, also known as PEX expansion couplings, are designed specifically for use with PEX-A tubing. Unlike PEX compression fittings, which create a seal by tightening a nut, these fittings employ an expansion tool to expand the tubing and an insert to secure the connection, thereby creating a leak-proof seal as the tubing naturally contracts.

Here's how it works:

First, a PEX expansion ring is slipped onto the end of the tubing. This ring is then expanded with a special tool, creating a space that the fitting can slip into. Once the fitting is inserted, the ring and tubing contract back towards their original sizes, creating a tight, secure bond around the fitting. Because of the elastic properties of PEX-A tubing, this connection becomes stronger over time.

Brass PEX expansion fittings come in various forms - including elbows, tees, couplings, and adapters - to accommodate different plumbing requirements. These fittings are typically made of brass, making them durable and resistant to corrosion.

Given the specific tools and technique required, installation of PEX expansion fittings is often performed by professionals, although experienced DIY-ers can also successfully install them. The result is a secure and durable connection that can withstand high water pressure and temperature.

Pex crimp and clamp/pinch fittings - F1807

Brass PEX crimp fittings are known for their easy installation and secure connections. They are virtually leak-proof if installed correctly. The process involves slipping a crimp ring over the end of the PEX tubing, inserting the crimp fitting into the tubing, then using a special crimping tool to tighten the ring, securing the tubing to the fitting.

PEX Press Fittings - ISO 15875

Brass PEX press fittings are universally used in many countries due to their durability, reliability, and ease of assembly. Some of the countries that widely use these fittings in their plumbing and heating systems include:

United States: PEX tubing and its corresponding brass fittings have been popular in the U.S. since the 1980s for residential, commercial, and industrial applications.

Australia: Australia uses PEX plumbing systems extensively, especially in new builds.

European Countries: In Europe, countries like the UK, Germany, France, and many Scandinavian countries extensively use PEX tubing and brass fittings due to their high performance and flexibility in cold conditions.

In summary, the usage of brass PEX press fittings is not confined to a few countries but has global acceptance due to its manifold advantages in residential and industrial plumbing and heating systems.

Pex sliding fittings - ISO 15875

The sliding sleeve system is the traditional connection system used by the installers in their PEX and multilayer pipes installations.

Apart from the economic advantage (the tool the sliding sleeve system requires is really cheap) and its compatibility with both PEX-A and PEX-B pipes, other advantages of Vpexco’s sliding sleeve connection system are the following:

Quality guarantee: They have been designed and produced according with the requirements of the European Norm UNE EN ISO 15875.

Tightness guarantee: Vpexco fittings meet the most demanding regulations which guarantee the tightness of the unions.

Low leaded brass: The brass alloy used in the production of Vpexco sliding sleeve fittings has low lead content and meets the most demanding European regulations concerning materials in contact with drinking water.