1-1/2 In Lead Free Reduced Pressure Zone Assembly, Quarter Turn Ball Valves, Lever Handle

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This 1 1/2 inch lead free reduced pressure zone assembly is designed to prevent the flow of polluted water from entering into the potable water supply due to backsiphonage and or backpressure in accordance with national plumbing codes and water authority requirements. Its compact modular design facilitates easy maintenance with separate access covers for in-line repairs. It can be used in a variety of installations without the need of any special tools. It is ideal for protection in continuous pressure piping applications and at cross-connections identified as health hazards and from other contaminants found at the service line entrance. This assembly consists of a bronze body construction, NPT end connections, quarter turn ball valve shutoffs with lever handles, two poppet style check valves and replaceable check seats, top mounted test cocks and a bottom mounted relief valve for reduced space requirements.

Product Features:

  • EZ twist relief valve cover with quarter turn locking joint captures the spring load during repair to facilitate disassembly
  • Bottom mounted relief valve for reduced clearance installation
  • Quarter turn full port resilient seated ball valve shutoffs with lever handles
  • Compact, space saving design
  • Innovative check valve plastic cover bushing provides trouble free guiding of the check valve poppet
  • Lead free bronze body with NPT end connections
  • Top mounted screw driver slotted test cocks for easy testing and use in reduced clearance installation
  • No special tools are required for servicing
  • Separate access covers for the check valves and relief valve for ease of maintenance


  • Backflow Preventer Type: Reduced Pressure Zone Assembly
  • Body Finish: Cast Bronze
  • Body Material: Lead Free Bronze
  • Body Pattern: Inline
  • BrandName: Watts
  • Bypass: No
  • Bypass Size: Does Not Apply To Product
  • Cap And Tether: No
  • Disc Material: Silicone
  • Elbow Fitting: No
  • Hazard Protection Level: Health Hazard
  • Hot And Harsh Water: No
  • Hydrant Connection: No
  • Inlet Connection Size: 1 1/2 IN
  • Inlet Connection Type: Female Threaded
  • Inlet Shutoff Valve Type: Quarter Turn Ball Valve
  • Inlet Thread Type: NPT
  • LeadFree: YES
  • Maximum Temperature-Fahrenheit: 180
  • Maximum Working Pressure-BAR: 12.10
  • Maximum Working Pressure-PSI: 175
  • Meter Type: No Meter
  • Minimum Temperature-Fahrenheit: 33
  • ModelNumber: LF919-QT 1 1/2
  • Outlet Connection Size: 1 1/2 IN
  • Outlet Connection Type: Female Threaded
  • Outlet Shutoff Valve Type: Quarter Turn Ball Valve
  • Outlet Thread Type: NPT
  • Part Number: 0065375
  • Polymer Coating: No
  • Pressure Operation: Continuous
  • Protection Type: Backpressure and Backsiphonage
  • Seat Material: Engineered Plastic
  • Series: LF919
  • Strainer: No