The difference between PEX A and PEX B can be distinguished by their unique production techniques, properties, flexibility, workability, radiant heating, cross-linking processes, cost-effectiveness, and high and low-temperature handling.
Cross-linked polyethylene PEX is a type of flexible plastic tube that is a widely used material for plumbing. However, PEX is currently replacing traditional copper and galvanized steel as a water supply in different projects.
In this article, we’ll discuss the differences between PEX A and PEX B, how to recognize them, and proper guidance on their use in construction.
What is PEX?
Cross-linked polyethylene known as PEX was invented in the 1960s. PEX is typically used in radiant heating or also in plumbing systems. Due to its cross-linking structure, it is widely used for a range of water distribution in both hot and cold water applications.
There are three types of PEX: PEX A, PEX B, and PEX C. These are different from each other due to their unique flexibility, lifespan, production process, or properties. PEX is mostly popular in the construction sector due to its strong features, easy method of installation, and resilience to freezing.
What is PEX A?
Cross-linked polyethylene plumbing tubing is known as PEX-A which is usable due to its remarkable flexibility, and reliable performance. Most importantly, it has strong resistance to freezing that ensures less chance of damage. It is expensive but a recommended choice.
What is PEX B?
PEX B refers to a silane process, or water vapour or moisture cross-linked polyethylene pipeline. It makes installation quick and easy, solid and affordable, and the joining method is not damaged by hot or cold temperatures.
What is PEX C?
PEC C is made by using the electron beam. The high electrons are used to substance the polyethylene. So, PEC C is a strong tubing product that has properties that fall between PEX A and PEX B. Their unique properties make them the best option in many plumbing and building projects.
What is the difference Between PEX A and PEX B
These PEX types look the same and people are confused about the difference between them but they are different from each other. Let’s discuss the difference between them.
|Features||PEX A||PEX B|
|Production Method||It is made by using the peroxide or Engel technique. Therefore, during the process of extrusion, the molecules are combined together.||That is created using the moisture cure or silane method. So, polyethylene is cross-linked following the extrusion process.|
|Cross- Linking||Cross-linking is more uniform, and durable, and improves tubing flexibility.||Offers less cross-linking due to a slightly stiffer product.|
|Flexibility||PEX A is popular due to its strong liability as a result of cross-linking during the extrusion process. In the cold temperature, it makes it easier to work.||It offers less flexibility. In cold temperatures, it is more challenging to work.|
|Damage||It can better resist damage or freezing in cold temperatures.||The chances of damage or freezing are increased in the cold temperature.|
|Strength||Due to its flexibility it offers resistance to strong chemicals and chlorine. So, the chances of cracks or ruptures are reduced.||It offers good strength but is a little less resistant to damage and ruptures in harsh environments.|
|Durability||It offers more long-lasting.||Offers durability but less compared to PEX A.|
|Cost||PEX A is more expensive due to its durability, flexibility, and production process.||PEX B is less expensive.|
Do PEX A and PEX B use different fittings?
PEX A and PEX B are two different products but are the same size. So, use the different fittings according to their properties, usage, production methods, flexibility, and durability. Let’s understand the difference between PEX A and PEX B.
|PEX A||PEX B|
|Uses an extension style fitting.||Uses an insert style fitting.|
|Fittings are too large in diameter. So, it requires an expansion tool.||The fitting is not too big.|
|Using the extension tool, you slide the pipe and sleeve into the fitting in sequence.||Using a copper crimp tool.|
|The extended end should be inserted into a suitable extended fitting.||Insert the fitting into the tubing.|
|Check for secure fitting.||Connect PEX tubing using copper crimp rings or stainless steel clamps.|
|Make sure there are no obvious gaps or leaks.||Make sure there are no obvious gaps or leaks.|
|Carefully support, and secure the PEX tubing||Check support, and secure PEX tubing.|
What are the uses of PEX A and PEX B in Construction?
These are used in different ways in PEX construction projects. Mostly used in plumbing to control cooling and heating systems. Let’s talk about usage in construction.
|PEX A||PEX B|
|It is suitable in areas where high flexibility is required.||PEX B is suitable where high flexibility is not required.|
|It is the most usable choice in cold regions where resistance to freezing and cracking is required.||It can be used in both hot and cold places.|
|Due to their flexibility and rigidity, radiant floors are frequently used in heating systems.||Often used in hydronic heating systems and snow melting systems due to their reliable strength and toughness.|
How do I know if I have PEX A or PEX B pipe?
Several steps are mentioned here so that you can easily distinguish between them if you have or want to buy a PEX A or PEX B pipe.
|PEX A||PEX B|
|Check out the flexibility that forms easily.||It cannot be shaped easily.|
|PEX A is mostly labeled with the symbol “PEX A” or “A”.||PEX B may be labeled with the letter “PEX B” or “B”.|
|Check the fitting point in which it uses the extension fitting.||It uses a copper crimp or clamp fitting.|
|It’s expensive.||Not more expensive.|
If you are confused about the difference between PEX A and PEX B. So, after learning and understanding the instructions mentioned above you can recognize the difference between PEX A and PEX B. Both of these are commonly used in different compositions.
When you shop, always keep in mind the plumbing or heating system of both of these. Ensure budget, need for flexibility, stability, and resilience in all situations according to the project requirements.