Wilkins: 4" 475DA Series Lead Free Reduced Pressure Detector Assembly with OSY Gate Valves and Gallons per Minute Meter
SKU 4-475DA {A}
Designed for installation on water lines in fire protection systems to protect against both backsiphonage and backpressure of contaminated water into the potable water supply. The Model 475DA/475DAV shall provide protection where a potential health hazard exists. Incorporates metered by-pass to detect leaks and unauthorized water use.