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WATTS - LF909-QT 1 - 1" -  Reduced Pressure Zone Assembly - (0391009) - LF909-QT 1 - UPC 098268051186


Shipping Size: 16x10x6in


Lead Free: YES

1 In Lead Free Silicon Bronze Reduced Pressure Zone Assembly, Quarter Turn Shutoff Valves


This 1 inch lead free silicon bronze reduced pressure zone assembly with its exclusive design incorporating the patented air-in and water-out principle for protection during an emergency condition prevents 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 for in-line repairs. It can be installed horizontal or vertical 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 quarter turn ball valve shutoffs with tee handles, check modules, replaceable seats, top mounted test cocks, and a pressure differential relief valve.



  • Unique patented air-in and water-out design provides high capacity relief valve discharge performance during emergency conditions
  • Quarter-turn ball valves with tee handles
  • Horizontal or vertical (up or down) installation
  • No special tools are required for servicing
  • Replaceable seats
  • Top mounted test cocks
  • Compact for easy installation
  • Single access cover
  • Lead free bronze body


Backflow Preventer Type Reduced Pressure Zone Assembly
Body Finish Cast Bronze
Body Material Lead Free Bronze
Body Pattern Inline
Brand Name Watts
Buy American Act Compliant YES
Bypass No
Cap And Tether No
Disc Material Silicone
EAN 098268051186
Elbow Fitting No
Hazard Protection Level Health Hazard
Hot And Harsh Water No
Hydrant Connection No
Inlet Connection Size 1 IN
Inlet Connection Size-Metric 25 MM
Inlet Connection Type Female Threaded
Inlet Shutoff Valve Type Quarter Turn Ball Valve
Inlet Thread Type NPT
Lead Free YES
Maximum Temperature-Fahrenheit 140
Maximum Working Pressure-BAR 12.10
Maximum Working Pressure-PSI 175
Meter Type No Meter
Minimum Temperature - Celsius 0.50
Minimum Temperature-Fahrenheit 33
Outlet Connection Size 1 IN
Outlet Connection Type Female Threaded
Outlet Shutoff Valve Type Quarter Turn Ball Valve
Outlet Thread Type NPT
Part Number 0391009
Polymer Coating No
Pressure Operation Continuous
Protection Type Backpressure and Backsiphonage
Seat Material Engineered Plastic
Series LF909 Small
Strainer No
Tradename None





WATTS LF909-QT 1 - 1" - Reduced Pressure Zone Assembly RP - (0391009)

SKU: 0391009