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DWV Expansion Joints

To help protect your PVC pipeline from thermal expansion, DWV expansion joints are commonly used to relieve pressure buildup. This piece works by enabling the pipe to expand and contract at the joint. Designed specifically for drain, waste, and vent applications, this small part plays a significant role in proper flow through a pipe system.
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While they are similar in appearance to schedule 40 PVC products, DWV fittings are typically a less expensive option. Additionally, DWV fittings are more commonly available in larger sizes than the standard schedule 40 PVC fittings.

Key features of DWV expansion joints:

  • Typically more cost-effective
  • Composed of durable PVC material
  • Resistant to corrosion and high temperatures

Browse our full selection of DWV expansion joints to see the different sizes and styles we have available.