Watts 0061657, SD-3-MF, 0.37" Dual Check Valve Backflow Preventer, Atmospheric Vent, Wye Pattern Strainer, SAE Male Flare Outlet Connection

Series SD-3 Dual Check Valves with Atmospheric Port & Strainer for Carbonated Beverage Machines prevent the reverse flow of polluted water, such as carbon dioxide gas and carbonated water, from entering into the potable water supply due to backpressure backflow. It consists of stainless steel body construction with internal rubber components and is designed for continuous or intermittent pressure applications. Series SD-3 has an atmospheric port that provides visual indication of failure of the second check and a wye pattern strainer. Series SD-3 is available in a variety of models and is ideal for use on post-mix carbonated beverage equipment and dispensing equipment for tea and coffee. Maximum Working Pressure: 150psi (10 bar).