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.

Can Zurn PEX B be expanded?

Considering that our PEX can be bent as tightly as any PEX on the market and it is expandable, we believe we have achieved the optimal balance.

Can you use PEX A for expansion fittings?

If necessary, relieve line pressure by opening a nearby faucet until the water stops flowing. For installing expansion fittings, it is recommended to use PEX-A tubing due to its flexibility and elastic memory.

Which PEX uses expansion?


PEX A uses an expansion-style fitting. These fittings are much larger in diameter the PEX B fittings, and require an expansion tool. Using the expansion tool, you enlarge the pipe and sleeve in order slide in the fitting.

Can you use crimp fittings on PEX B?

Crimp fittings are compatible with all types of PEX tubing, except for PEX-AL-PEX. Crimp fittings are preferred for many applications since they are widely available and are the most affordable.

Is PEX A or B better?

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Are PEX A and PEX B fittings interchangeable?

There are two parts to this transition: the PEX-A MIP adapter and the PEX-B FIP adapter. These parts will thread together and allow you to join PEX-A to PEX-B. The PEX-A side will require an expansion ring while the PEX-B side requires the crimp ring.

Can you crimp on PEX expansion fittings?

PEX Crimp Fittings Installation:

The standard method for connecting PEX pipe to PEX crimp fittings uses a crimp ring and a PEX crimping tool. The crimp ring is inserted over the pipe, the fitting is inserted inside the pipe, and the ring is crimped over the pipe and fitting using the PEX crimping tool.

Are PEX crimp and expansion fittings the same?

Cold-Expansion (F1960) Plastic PEX Fittings

Unlike Crimp, Cold-Expansion fittings are made to standard ASTM F1960 which covers both plastic and metal fittings. The flow passage requirements are very similar between plastic and metal fittings.

Does SharkBite work on PEX A and B?

SharkBite push-to-connect fittings listed to ASSE 1061 approved for PEX-A, PEX-B and PEX-C pipe.

What is PEX b used for?

PEX B. Technically referred to as a silane process, but is more often called steam or moisture cross-linking. Unlike the PEX-A process, it’s done after the HDPE is extruded into tube. Passing the finished product through steam in the presence of a silane catalyst encourages the polymers to form cross-links.

What is the difference between PEX A pipe and PEX B pipe?

Again, the main distinction lies in the manufacturing method, which is what assigns an A, B or C to PEX. PEX A is made using the Peroxide, or Engel, method. PEX B is formed using Silane, or Moisture Cure, method. This is the most common PEX pipe type out there.

What is the difference between PEX a PEX B and PEX C?

PEX B pipe is made using Silane or moisture cure method of cross-linking, the links between the molecules of the HDPE form after the extrusion process using a catalyst and exposing the PEX pipe to hot water. PEX C pipe is made using an electronic irradiation process to cross-link, known as “Cold cross-linking”.

Does PEX b freeze?

All types of PEX — a, b and c — share nearly the same capabilities too. And SharkBite makes a PEX-b that not only holds up to freezing but is also one of the strongest PEX types on the market.

Is SharkBite PEX type A or B?

Cross-linking is defined as polyethylene material that has undergone a change in molecular structure using a chemical or a physical process whereby the polymer chains are chemically linked. SharkBite non oxygen barrier pipe is manufacture as PEX-B and SharkBite oxygen barrier pipe is manufactured as PEX-C.

Is Apollo PEX A or B?

Apollo offers PEX-A (Expansion PEX) and PEX-B tubing. PEX-A tubing (Expansion PEX) is produced using the Peroxide or Engel method. Molecules of HDPE polymer are cross-linked during the extrusion process. PEX-B tubing is produced using the Silane or moisture-cured method.

How do you transition from PEX to PEX B?

Quote from the video:
Quote from Youtube video: The recommended method to transition is to use a pex b insert style fitting into both the pex a and pex b pipe we'll use the crimp ring on the pex.

How do you straighten PEX B?

Pex pipes are available in coils or straight units. The coils tend to stubbornly hold their shape. They can be straightened out by applying heat, laying them under the sun for a while, applying manual pressure, or using a pipe straightener until they take on the desired shape.