How many types of brass fittings for pex pipe connection?

different types pex pipe fittings connection

How many types of plastic fittings for pex pipe connection?

There’re 4 main types for pex plastic fittings:

plastic pex crimp fittings

1. Plastic Crimp Fittings

These use crimp rings or bands that are tightened around the PEX pipe and fitting with a crimping tool to create a secure connection. Crimp fittings work with PEX-B and PEX-C tubing.

2. Plastic Expansion Fittings (PEX-A only)

pex pipe expansion fittings in plastic

Also called cold expansion fittings, these use an expansion tool to expand the end of the PEX-A pipe, which is then pushed over a barbed fitting piece. When the pipe contracts, it grips the fitting tightly.

3. Plastic Push-Fit Fittings 

pex plastic push fittings

These allow the PEX pipe to be simply pushed into the fitting, which has a teethed ring that grips the pipe when inserted. Push-fit fittings work with PEX-A, PEX-B and PEX-C.

4. Plastic Press Fittings

pex press fittings compression fittings

Similar to push-fit, these use a compression ring that is tightened around the pipe to grip it against the fitting body. Usable with all PEX types.

Brass PEX Fittings vs Plastic Pex Fittings

Here is a table comparing brass vs plastic PEX fittings:

Brass PEX Fittings:

*Made of solid brass material, more durable and longer-lasting than plastic

*Can withstand higher temperatures and pressures

*More expensive than plastic fittings

*Used with crimp rings to secure the PEX pipe connection

*Suitable for both plumbing and hydronic heating applications

*Provide a sturdy, reliable connection

Plastic PEX Fittings:

*Made from polymers like PPSU, polysulfone or reinforced polyethylene

*More affordable than brass fittings

*Have lower temperature and pressure ratings compared to brass

*Used with crimp rings, clamps or expansion fittings to join PEX pipes

*Mainly used for plumbing applications, not as common in hydronic heating

*Some plastic fittings may be prone to cracking or degradation over time.

In summary, the key advantages of brass PEX fittings are higher durability, ability to handle higher temperatures/pressures, suitability for both plumbing and heating applications, and longer service life. However, they come at a higher upfront cost compared to plastic PEX fittings, which are more economical but may have limitations in terms of durability and maximum temperature/pressure ratings.

pex fittings 16 to 32mm

Why brass pex fittings is better than plastic pex fittings?

Choosing between brass and plastic PEX fittings is often a matter of specific application, budget, and personal preference. However, there are several reasons why one might opt for brass fittings over plastic ones:

Durability & Strength

Brass PEX fittings are typically stronger and more durable than their plastic counterparts. They can withstand higher temperatures and pressures, which makes them suitable for heavy-duty commercial applications.

Compatibility

Brass fittings are versatile and compatible with various types of pipes, including copper and iron. This can render installation and repairs more straightforward in a mixed-material system.

Resilience

Despite being subject to potential corrosion, high-quality brass fittings generally demonstrate long-standing performance. They usually don't warp, crack or degrade over the years.

Structural Integrity

Brass fittings are notorious for maintaining their shape and structure, even under stress. They provide a secure and tight connection, minimizing the risk of leaks.

brass compression fittings for pex pipe

The choice depends on factors like the application, local codes, desired service life, and weighing the upfront cost against long-term reliability and performance requirements. But in general, brass PEX fittings are considered the more robust and longer-lasting option. For more information or inquiry or the brass pex fittings, welcome to contact us.