Schedule 40 PVC Crosses

Schedule 40 PVC Crosses are four-way connectors that join four sections of pipe at 90-degree angles, making them ideal for distributing fluid in multiple directions within a plumbing system. These pipe fittings are a staple in both residential and commercial applications, offering a reliable solution for complex layouts that require multi-branch routing.

Available in sizes ranging from ½” up to 4”, Schedule 40 Crosses are designed to handle moderate temperature and pressure applications. Their standard wall thickness and durable construction meet ASTM D standards and are often NSF-rated for potable water use. Most are white in color and compatible with all Schedule 40 PVC pipe systems.

The Slip x Slip x Slip x Slip design allows for solvent welding, creating leak-free, rigid connections without the need for thread sealants. This type of connection also enhances flow efficiency and reduces the risk of leaks over time. In some systems, Schedule 40 Crosses may also be paired with insert fittings for specific low-pressure or irrigation applications.

Planning is paramount when using PVC crosses in a system layout. Because these fittings direct flow in multiple paths, they can concentrate hydraulic stress if not properly supported. Be sure to secure pipes near the fitting from multiple directions to prevent strain and maintain system integrity.

This category includes both standard and reducing crosses, making it easy to find the right solution—from connecting equal-sized pipes to branching off into smaller lines. Sizes like 3" x 2" and 4" x 2" are ideal for transitioning from a main line to a secondary zone.

Whether you're a seasoned plumber or tackling a weekend plumbing project, Maxx Supply offers a full selection of PVC fittings to support your needs. Choose from a range of configurations and fitting sizes to ensure a seamless and durable installation.

Subcategories:

How to Select the Right Schedule 40 PVC Cross for Your Project

Choosing the right Schedule 40 PVC Cross depends on several factors, such as the size of your system, the type of connection you need, and the overall layout of your plumbing or irrigation network. Here's how to make the best choice:

Standard vs. Reducing Crosses

  • Standard Crosses: Feature four equal-sized inlets and outlets, making them ideal for symmetrical layouts such as water distribution or irrigation systems where even flow is essential.
  • Reducing Crosses: Include one or more smaller outlet legs, perfect for systems where a main line branches into secondary zones with different pipe sizes.

Connection Types

Most Schedule 40 Crosses use a slip-style design for solvent welding. This method:

  • Creates a strong, watertight seal
  • Requires no thread sealants
  • Ensures a rigid, long-lasting connection

Choosing the Correct Size

  • Match the fitting to the nominal PVC pipe size, not the outside diameter.
  • For reducing crosses, confirm that the outlet size is compatible with your branch lines to maintain proper flow and pressure balance.

Installation Tips

  • Always use primer and solvent cement during installation to meet pressure ratings and prevent future leaks.
  • Never use a cross to directly change pipe direction, as they’re intended for straight branching.
  • Support all connected pipes from multiple angles near the fitting to reduce stress and prevent fractures.
  • Avoid over-tightening or forcing pipes into the cross, especially in high-flow systems.

Common Use Cases

  • Water Distribution Systems: Perfect for splitting water flow into different rooms or building zones.
  • Irrigation Systems: Ideal for drip or sprinkler layouts where multiple zones stem from a single feed.
  • Hydroponics and Aquaponics: Use crosses to manage directional flow from a central reservoir.
  • Drainage or Venting: In low-pressure setups, crosses can provide auxiliary outflow or air admittance.

By selecting the right PVC pipe cross for your application, you can build a more efficient and reliable system—whether you're managing cold water supply lines, setting up outdoor applications, or supporting a large-scale commercial build. Maxx Supply offers both standard and pressure fittings that meet the highest industry standards.