WATTS® LF909 Reduced Pressure Zone Assembly, 3/4 in, 7.5 fps, Cast Iron

1211479 MFG #: 0122771
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WATTS® Pressure Zone Assembly, Reduced, Series LF909, 3/4 in Nominal Size, 33 to 110 deg F, 7.5 fps, Cast Iron Body

Series LF909 Reduced Pressure Zone Assemblies are designed to provide cross-connection control protection of the potable water supply in accordance with national plumbing codes. This series can be utilized in a variety of installations, including health hazard crossconnections in plumbing systems or for containment at the service line entrance. With its exclusive relief valve design incorporating the "air-in/water-out" principle, it provides substantially improved relief valve discharge performance during the emergency conditions of combined backsiphonage and backpressure with both checks fouled. The LF909 features Lead Free* construction to comply with Lead Free* installation requirements.

  • Features
  • Replaceable seats
  • Stainless steel internal parts
  • No special tools required for servicing
  • Captured spring check assemblies
  • Fused epoxy coated and lined checks
  • Industrial strength sensing hose
  • Field reversible relief valve
  • Air-in/water-out relief valve design provides maximum capacity during emergency conditions
  • Stainless steel seats
  • Stainless steel trim
  • Standard/Approvals: ASSE 1013, AWWA C511-92, CSA B64.4, FM Approved, IAPMO PS 31, SBCCI, USC manual for Cross-Connection Control, 8th Edition, cULUS Classified