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  • Writer's pictureRepipe Champions

Type A PEX vs Type B PEX

Updated: Sep 8, 2023

When it comes to repiping your home, choosing the right piping material is crucial for ensuring the long-term integrity and performance of your plumbing system. In recent years, cross-linked polyethylene (PEX) has gained immense popularity due to its flexibility, durability, and ease of installation. However, not all PEX pipes are created equal. In this blog post, we will delve into the comparison of two common types of PEX pipes - Type A PEX and Type B PEX - to help you make an informed decision when repiping your home.

Type A PEX: Type A PEX, often referred to as PEX-A, is one of the most advanced and reliable piping materials available today. It is manufactured using the Engel method, which involves cross-linking the polyethylene material in a high-pressure, high-temperature environment. This process results in a superior product with enhanced flexibility, allowing it to withstand significant stress without compromising its structural integrity.

Advantages of Type A PEX:

  1. Excellent flexibility: Type A PEX exhibits remarkable flexibility, making it highly resistant to freezing, thawing, and impact. This flexibility simplifies the installation process, especially when navigating around tight corners and obstructions in your home's structure.

  2. Reduced expansion and contraction: Type A PEX has a lower coefficient of expansion compared to Type B PEX, meaning it expands and contracts less when exposed to temperature fluctuations. This characteristic reduces stress on fittings and minimizes the likelihood of leaks over time.

  3. Improved flow rates: The smooth interior surface of Type A PEX pipes helps maintain high flow rates and minimizes pressure loss, allowing for efficient water distribution throughout your home.

  4. Enhanced durability: Type A PEX is highly resistant to corrosion, scale buildup, and chemical reactions, ensuring a longer lifespan for your plumbing system. Its ability to withstand freezing temperatures also prevents pipe bursts during harsh winters.

Type B PEX: Type B PEX, also known as PEX-B, is another commonly used variant of cross-linked polyethylene. It is manufactured using the Silane method, which involves adding a catalyst to the polyethylene material and then subjecting it to heat and pressure. This process creates a slightly different molecular structure compared to Type A PEX.

Advantages of Type B PEX:

  1. Cost-effective: Type B PEX is generally less expensive than Type A PEX, making it an attractive option for budget-conscious homeowners.

  2. Rigidity and stability: Type B PEX pipes have a slightly higher degree of rigidity, which can be advantageous in certain situations where extra stability is required, such as underground installations or areas prone to potential impact damage.

  3. Easy to work with: Type B PEX is easier to cut and shape due to its increased stiffness. This characteristic may be beneficial for DIY enthusiasts or contractors who prefer a more rigid piping material during installation.

Choosing the Right Option: The decision between Type A PEX and Type B PEX ultimately depends on your specific needs and priorities. While Type A PEX offers superior flexibility, durability, and long-term performance, Type B PEX may be a viable option for those seeking a more cost-effective solution or specific rigidity requirements.

At Repipe Champions, we specialize in repiping homes using Type A PEX, leveraging its exceptional qualities to ensure reliable and efficient plumbing systems for our clients. Our team of experienced professionals can assess your unique requirements and provide expert guidance on the most suitable choice for your repiping project.

Conclusion: When it comes to repiping your home, selecting the right type of PEX pipe is essential for the longevity and functionality of your plumbing system. Both Type A PEX and Type B PEX offer their own advantages, but it is crucial to consider factors such as flexibility, durability, cost, and specific installation needs. By partnering with a reputable repiping company like Repipe Champions, you can rest assured that you will receive expert advice and high-quality installations using Type A PEX, ensuring a plumbing system that stands the test of time.

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