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WATTS LF 957 - 8" - Reduced Pressure Assembly RP w/NRS gate valves - (0111606) -  UPC 098268122657 - 957-NRS8


Lead Free: YES

8 In Ss Reduced Pressure Zone Assembly, Nrs Shutoff Valves


This 8 inch stainless steel reduced pressure zone assembly is designed to prevent the reverse flow of contaminated water from being pumped or siphoned into the potable water supply due to backsiphonage and or backpressure in accordance with national plumbing codes and water authority requirements. This extremely compact and lighter than a traditional designed assembly is approved for horizontal installation in accordance with the direction of the flow arrow. 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 stainless steel body with a quick access sleeve, torsion spring check valves, resilient seated gate valves with non-rising stem, test cocks, and a corrosive resistant stainless steel bottom mounted pressure relief valve.



  • Stainless steel housing and sleeve
  • Health hazard application
  • Compact design allows small enclosures to be used
  • Groove couplings for ease of installation and pipe alignment
  • The maximum working pressure is 175 psi (12.06 bar)
  • Patented torsion spring check modules for ease of serviceability
  • No special tools required for servicing
  • Bottom mounted cast stainless steel relief valve
  • Non-rising stem gate valves




Backflow Preventer Type Reduced Pressure Zone Assembly
Body Finish Stainless Steel
Body Material Stainless Steel
Body Pattern Inline
Brand Name Watts
Buy American Act Compliant YES
Bypass No
Cap And Tether No
EAN 098268122657
Elbow Fitting No
Hazard Protection Level Health Hazard
Hot And Harsh Water No
Hydrant Connection No
Inlet Connection Size 8 IN
Inlet Connection Size-Metric 200 MM
Inlet Connection Type Grooved Joint
Inlet Shutoff Valve Type Non Rising Stem Gate Valve
Inlet Thread Type Does Not Apply To Product
Lead Free YES
Maximum Temperature-Fahrenheit 110
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 8 IN
Outlet Connection Type Grooved Joint
Outlet Shutoff Valve Type Non Rising Stem Gate Valve
Outlet Thread Type Does Not Apply To Product
Part Number 0111606
Polymer Coating No
Pressure Operation Continuous
Protection Type Backpressure and Backsiphonage
Seat Material Engineered Plastic
Series 957
Strainer No
Tradename None
Type Kit



WATTS LF957 - 8" - Reduced Pressure Assembly RP w/NRS gate valves - (0111606)

SKU: 0111606