The Zurn Wilkins 475STDA Stainless Steel n-Pattern Reduced Pressure Detector Assembly (RPDA) withstands the corrosive effects of water and is ideal for new or direct drop-in replacement delivering convenience without compromise.  For fire protection applications, with a metered by-pass to detect leaks and other water use.

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BIM / 3D Models / 2D Drawings

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Features And Benefits

  • Superior stainless steel body to resist corrosion and extend the product life
  • Smaller footprint for direct drop-in replacement
  • Time-tested check and relief valve components ensure easy maintenance and more water system uptime
  • Patented compound checks provide ultra-low pressure drop as documented by approval authorities, reducing the need for a booster pump
  • Can utilize the new backflow setter which eliminates the need for concrete thrust blocks, allowing for easier installation and lower cost
  • Available as a 475STDAV for RP protection in a vertical upward flow path
  • Available in sizes 4"-10"
  • OS&Y Gate Valves (Standard)
  • Butterfly Valves (Optional)
  • Metered by-pass to detect leaks and other water use
Lead Free
Retrofit or Replacement
Zurn Wilkins
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