WATTS® Pressure Zone Assembly, Reduced, Series LF909, 3 in Nominal Size, 175 psi, 33 to 110 deg F, 7.5 fps, Cast Iron Body, Epoxy Coated, 42-1/4 in L
Series LF909 Reduced Pressure Zone Assemblies are designed to provide cross-connection control protection of the potable water supply in accordance with national plumbing codes. This series can be utilized in a variety of installations, including health hazard crossconnections in plumbing systems or for containment at the service line entrance. With its exclusive relief valve design incorporating the "air-in/water-out" principle, it provides substantially improved relief valve discharge performance during the emergency conditions of combined backsiphonage and backpressure with both checks fouled. The LF909 features Lead Free* construction to comply with Lead Free* installation requirements.