The 8" 475DA Reduced Pressure Detector Backflow Assembly, with OS&Y gate valves, is utilized in high hazard, fire protection applications to protect against both backsiphonage and backpressure. The 475DA is shaped in the n-Pattern design and is ideal for new or retrofit installations in compact spaces. The models small footprint is ideal for fire protection applications, as well as a metered bypass system to detect leaks and any unauthorized water use, saving you valuable time and money on repairs and maintenance costs.

• 8" reduced pressure detector assembly
• Small footprint for easy fire protection new or retrofit installations
• For use in high health hazard applications
• 475DA assembled in n-Pattern
• 475DAV allows for vertical up flow in a z-Pattern
• OS&Y gate valves come standard on the 475DA/475DAV with additional gate valve options and connections available to provide installation versatility
• ASSE® Listed
• AWWA Compliant
• UL® Classified
• C-UL® Classified