8" Double Check Detector Assembly Backflow Preventer

The 450DA Double Check Detector Backflow Assembly protects against both backsiphonage and backpressure on water lines in low health hazard, fire protection applications. Shaped in the n-Pattern, the 450DA is ideal for both new and retrofit installations in tight locations. It features an innovative metered bypass system to efficiently and effectively detect leaks and any unauthorized water use and the epoxy-coated ductile iron body protects against corrosion. The 450DA utlizes the Zurn Wilkins Compound Check which provides low headloss, and multiple gate valve end connection options are available for versatile installation.

• Compact size ensures easy retrofit applications in tight spaces
• Effectively detect leaks and any unauthorized water use
• Patented Compound Check offers reliable performance and improved flow characteristics
• n-Pattern allows for use in compact enclosures
• Valve assembly comes standard with OS&Y gate valves
• Epoxy-coated ductile iron body protects against corrosion