Double Check Backflow Preventer - 350 ADA

Double Check Backflow Preventer - 350 ADA

Water backflow preventer 350ADA has a double check valve which is ideal for fire protection applications. This backflow preventer sprinkler system comes with a metered by-pass to detect leaks and unauthorized water use.

The backflow device allows horizontal or vertical installation making it versatile and reduces installation time. The patented compound check provides performance and improved flow characteristics.

Product Resources

Spec Sheets & Install

BIM / 3D Models / 2D Drawings

Back to Top

Popular Models

Popular Options

4-350ADA - Double Check Detector Backflow Preventer

4-350ADA

The Zurn Wilkins 350ADA Double Check Detector Backflow Preventer is ideal for fire protection applications. Its metered bypass detects leaks and unauthorized water use. Used in low health hazard applications.

To view all options, see the Specification Sheet - 350ADA

6-350ADA - Double Check Detector Backflow Preventer

6-350ADA

The Zurn Wilkins 350ADA Double Check Detector Backflow Preventer is ideal for fire protection applications. Its metered bypass detects leaks and unauthorized water use. Used in low health hazard applications.

To view all options, see the Specification Sheet - 350ADA

8-350ADA - Double Check Detector Backflow Preventer

8-350ADA

The Zurn Wilkins 350ADA Double Check Detector Backflow Preventer is ideal for fire protection applications. Its metered bypass detects leaks and unauthorized water use. Used in low health hazard applications.

To view all options, see the Specification Sheet - 350ADA

No Matching Products
Back to Top

Features And Benefits

  • Short lay-length for small space installation
  • Reliable performance and improved flow characteristics from patented Compound Check
  • Resilient wedge OS&Y gate valves standard
  • Approved in horizontal and vertical positions
  • Available in flanged, grooved, or grooved x flanged end connections for installation versatility
  • No threads or taps in body or cover, eliminating exposure to corrosion
  • Single access cover reduces maintenance down time
Lead Free
Retrofit or Replacement
MasterSPEC
Zurn Wilkins

Backflow Attributes

  • Grooved for steel pipe, flanged
  • Epoxy coated ductile iron
  • 2-1/2"*, 3"* , 4", 6", 8", 10"
Back to Top
Back to Top

FAQS

What's the difference between the 350ADA and the 350DA?

  • ​The 350ADA and the 350DA are both Double Check Detector Assemblies.  The 350DA utilizes shut-off valves that are attached to the main body via flanges.  The 350ADA utilizes grooved couplings for the attachment of the shut-off valves.  Therefore, due to the elimination of the flanges, the 350ADA is lighter in weight than the 350DA.
Back to Top