Wilkins 450DA-OSY 4" Double Check Detector Assembly
Details
Details
Wilkins 450DA 4" N pattern double check detector assembly protects against both backsiphonage and backpressure. A 3/4 inch 950XLD by-pass assembly is added to detect leaks and unauthorized water use.
Manufacturer: Wilkins
Size: 4 Inch
Product model: 450DA
Gate Valve Type: OSY Valve
Size: 4 Inch
Product model: 450DA
Gate Valve Type: OSY Valve
Installation and Maintenance Instructions 4" - 6" Specification Sheet Specification Sheet for Valve Setters Repair Parts Guide 
Zurn Wilkins Backflow Prevention Detector Assemblies - How it Works
Zurn Wilkins Backflow Prevention Model 49 Butterfly Valve - How to Adjust Opening and Closing Stop
Zurn Wilkins Backflow Prevention - Why does Zurn call it a Compound Check?