Product Advisories


8″ Model DDX and EX Valves

  • 8″ model DDX and EX Valves manufactured between 2008 – June 2025 require the clapper’s striker plate to be replaced.
  • 8″ model DDX and EX Valves are installed in these types of systems:
    • Low Pressure Dry
    • Deluge
    • Preaction
  • Replacement striker plate and installation tool will be furnished at no cost.

Advisory Bulletin

Replacement Instructions