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Zurn Industries 8'' 450 Double Check Valve Assembly With OsAndY Gate Valves

SKU: 8-450OSY

$28,189.00

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Product Details

Zurn Industries 8-450OSY

The 8'' 450OSY Double Check Backflow Assembly, with OSandY gate valves, is utilized in low health hazard applications for protection against both back siphonage and backpressure of polluted water into the potable water supply. Shaped in the n-Pattern, the Model 450 is ideal for both new and retrofit installations in compact locations. The patented, center-stem guided Compound Check provides low headloss and reliable, superior performance. It also features a convenient single access cover to reduce maintenance downtime. Materials include a corrosion-resistant, epoxy-coated ductile iron body and access covers, and stainless steel fasteners and springs.


The 8'''' 450OSY Double Check Backflow Assembly, with OS&Y gate valves, is utilized in low health hazard applications for protection against both backsiphonage and backpressure of polluted water into the potable water supply. Shaped in the n-Pattern, the Model 450 is ideal for both new and retrofit installations in compact locations. The patented, center-stem guided Compound Check provides low headloss and reliable, superior performance. It also features a convenient single access cover to reduce maintenance downtime. Materials include a corrosion-resistant, epoxy-coated ductile iron body and access covers, and stainless steel fasteners and springs.


  • Collection 450
  • UPC 612052048826
  • Online Product ID 5729368
  • Length 55"
  • Width 45"
  • Height 54"
  • Weight 962 lbs.
  • Made In USA
  • Made in USA yes
  • Low Lead Compliant yes
  • Listing UL, C-UL
  • Unit Of Measure Each
  • Prop65 Warning Cancer and Reproductive Harm - www.P65Warnings.ca.gov
  • Minimum Order Quantity 1
  • Shipping L:48"x W:55"x H:55" 890 lbs.

Additional information

  • Compact size ensures easy retrofit applications in tight spaces
  • Patented Compound Check offers reliable performance and improved flow characteristics
  • n-Pattern allows for use in compact enclosures
  • Epoxy-coated ductile iron body protects against corrosion
  • Lead-free
  • ASSE® Listed
  • IAPMO® Listed
  • AWWA Compliant
  • UL® Classified
  • C-UL® Classified

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