Class 125 Fittings

At Maxx Supply, we provide cost-effective, durable Class 125 fittings ideal for industrial piping systems where reliability matters. When it comes to industrial piping, quality and durability are of paramount importance — and our Class 125 fittings deliver both.

Our selection of fittings is diverse and comprehensive, guaranteeing that you will find the right fitting for any job. Whether you need a coupling, elbow, tee, or flange, our fittings are built to withstand high-pressure applications with ease.

If you're in the market for a cost-effective option for large-diameter high-pressure PVC fittings, Class 125 fittings could be just the thing. Not only are these high-pressure PVC fittings more budget-friendly than typical Schedule 40 fittings, but they also offer excellent temperature and pressure resistance — tested to withstand up to 125 PSI and 140°F (60°C).

Class 125 PVC fittings are manufactured to the same dimensions as Schedule 40, making them compatible with standard PVC systems. However, they do not undergo the same safety testing prior to sale, which significantly reduces their overall cost — without compromising performance in non-critical settings.

So, whether you need something industrial or domestic, investing in Class 125 fittings can help provide a reliable solution while keeping your pocket happy!

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Common Applications for Class 125 Fittings

When selecting components for your industrial plumbing system, understanding where Class 125 fittings deliver the most value is key. They strike the ideal balance between performance and cost-efficiency — especially for systems that don't require certification or extreme pressure ratings.

Where Are Class 125 Fittings Typically Used?

Class 125 PVC fittings are often chosen for systems that require durable flow control but operate in less demanding environments. Common examples include:

  • Irrigation Systems: Ideal for agricultural and landscaping projects that benefit from large-diameter, high-flow PVC components.
  • Non-Potable Water Systems: Frequently used in systems carrying water not intended for consumption, such as graywater reuse systems.
  • Drainage and Low-Risk Wastewater: Suitable for gravity-fed or low-pressure wastewater and stormwater systems where certification isn't required.
  • Light-Duty HVAC Systems: Used in auxiliary HVAC components such as drainage lines or secondary fluid routing.
  • General-Purpose Industrial Plumbing: An economical choice for industrial operations where NSF certification or stringent pressure standards aren't necessary.

When to Choose Class 125 Over Schedule 40 or 80

If your system doesn’t require certified pressure testing or potable water safety ratings, Class 125 fittings offer a smart alternative to Schedule 40 or Schedule 80. They provide:

  • Cost savings without sacrificing functionality in non-critical systems
  • Dimensional compatibility with Schedule 40 PVC piping
  • Reliable performance in systems operating up to 125 PSI and 140°F

Know the Limits

While Class 125 PVC pipe fittings offer a versatile solution, they are not suitable for:

  • Potable water applications (due to lack of NSF certification)
  • High-pressure systems that exceed 125 PSI
  • Critical infrastructure where system failure could pose serious risk