Schedule 80 PVC Couplings

As a trusted distributor in the plumbing and industrial supply space, Maxx Supply understands the importance of durability, reliability, and performance in every component you use. That’s why we provide only top-tier Schedule 80 PVC couplings — built for strength, longevity, and consistent performance in high-pressure systems.

Schedule 80 PVC couplings are essential PVC fittings designed to join two pipes together or facilitate directional changes in piping systems. These couplings are made from high-quality PVC material and are ideal for use in chemical processing, water treatment, municipal systems, and heavy-duty plumbing.

There’s a wide selection of coupling types and sizes available, such as:

  • Slip x Slip couplings for solvent-welded permanent connections
  • FPT x FPT couplings for threaded, removable setups
  • Reducer couplings to connect pipes of differing diameters
  • Reinforced couplings engineered for high-pressure, high-temperature conditions
  • Specialized fittings such as the male adapter and repair coupling for unique system needs

All Schedule 80 PVC fittings in this category meet or exceed ASTM D1784 and NSF standards for safety and performance, providing the leak resistance, chemical compatibility, and long-term stability that demanding jobs require.

Engineered for both professionals and advanced DIY users, these Schedule 80 PVC fittings are easy to install — offering slip-on or threaded options to suit your specific project needs. No specialized tools are needed for installation, and minimal maintenance is required over time.

Whether you're performing a quick repair or managing a large-scale installation, Maxx Supply's selection of Schedule 80 couplings and stellar customer service help ensure a secure, high-performance pipeline every time.

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Choosing the Right Schedule 80 Coupling

Different couplings have different use cases; choosing the right type of Schedule 80 coupling for your application maximizes performance and safety in your system.

Here's a breakdown of the key distinctions:

  • Slip x Slip Couplings: Perfect for permanent solvent-welded installations. These provide a smooth, uninterrupted flow path and are ideal for systems where dismantling is not required.
  • FPT x FPT Couplings: Featuring female pipe threads, these allow for easier disassembly, future replacements, and compatibility with other threaded components. Ideal for modular systems or setups that require periodic maintenance.
  • Reducer Couplings: Also known as reducing couplings, these are used when transitioning between pipes of different diameters. They ensure a strong seal without sacrificing structural integrity or performance.
  • Reinforced Couplings: These couplings offer extra-thick walls and strengthened bodies, making them well-suited for high-pressure or high-temperature applications in commercial, industrial, or municipal systems.

Compared to lighter-duty options like Schedule 40, Sch 80 PVC couplings are engineered for higher pressure and temperature thresholds. They are ideal for:

  • Chemical processing systems
  • Municipal infrastructure
  • Heavy-duty water transport
  • Commercial plumbing applications

Each PVC Schedule 80 coupling is crafted with ASTM D-compliant PVC that delivers a balance of mechanical strength, corrosion resistance, and low maintenance to meet today's complex plumbing and construction challenges.