Watts® Series LF909 Reduced Pressure Zone Assemblies

Series LF909 Reduced Pressure Zone assemblies provide superior cross-connection control protection of the potable water supply in accordance with national plumbing codes and containment control for water authority requirements. This series can be utilized in a variety of installations, including health hazard cross-connections in plumbing systems or for containment at the service line entrance. The series features Lead Free* construction to comply with Lead Free* installation requirements. With its exclusive design incorporating the “air-in/water-out” principle, the series provides maximum relief valve discharge during the emergency conditions of combined backsiphonage and back-pressure with both checks fouled. Standardly furnished with full port, resilient-seated, and Lead Free* cast copper silicon alloy ball valve shutoffs. Sizes 3⁄4" and 1" shutoffs have tee handles.
This series includes a flood sensor to detect excessive water discharges from the relief valve. The sensor is installed on the assembly exterior and does not alter assembly functions or certifications. The sensor relays a signal that triggers notification to facility personnel, helping to avoid the possibility of ruinous flooding and costly damage.

Stroke

4 Stroke

Max Power

62kW/6000 (r/min)

Cylinders

2 Cylinder

Max Torque

101N·m/5000 (r/min)

Displacement (ml)

1000CC