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WATTS LF909M1-QT - 1 1/4" - Reduced Pressure Zone Assembly RP - (0391010) 


Lead Free: YES

1 1/4 In Lead Free Silicon Bronze Reduced Pressure Zone Assembly, Quarter Turn Shutoff Valves


This 1 1/4 inch 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 a lead free silicon bronze body, quarter turn ball valve shutoffs with lever handles, check modules, replaceable seats, top mounted test cocks, and a pressure differential relief valve.


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


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 098268051193
Elbow Fitting No
Hazard Protection Level Health Hazard
Hot And Harsh Water No
Hydrant Connection No
Inlet Connection Size 1 1/4 IN
Inlet Connection Size-Metric 32 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 1/4 IN
Outlet Connection Type Female Threaded
Outlet Shutoff Valve Type Quarter Turn Ball Valve
Outlet Thread Type NPT
Part Number 0391010
Polymer Coating No
Pressure Operation Continuous
Protection Type Backpressure and Backsiphonage
Seat Material Engineered Plastic
Series LF909 Small
Strainer No
Tradename None
Type Kit



WATTS LF909M1-QT - 1 1/4" - Reduced Pressure Zone Assembly RP - (0391010)

SKU: 0391010