LF860-FS Large

Lead Free MasterSeries In-Line Reduced Pressure Zone Assembly Backflow Preventer, OSY Gates and Flood Sensor
Adding activation kit to flood sensor
Lead Free MasterSeries In-Line Reduced Pressure Zone Assembly Backflow Preventer, OSY Gates and Flood Sensor
Lead Free MasterSeries In-Line Reduced Pressure Zone Assembly Backflow Preventer, OSY Gates and Flood Sensor
Lead Free MasterSeries In-Line Reduced Pressure Zone Assembly Backflow Preventer, OSY Gates and Flood Sensor
Adding activation kit to flood sensor
Lead Free MasterSeries In-Line Reduced Pressure Zone Assembly Backflow Preventer, OSY Gates and Flood Sensor
Lead Free MasterSeries In-Line Reduced Pressure Zone Assembly Backflow Preventer, OSY Gates and Flood Sensor
V_HowtoActivateFloodDetection_09142022

Lead Free* MasterSeries In-Line Reduced Pressure Zone Assembly Backflow Preventers with Flood Sensor - Large Diameter 2-1/2 - 10 IN Sizes

Find SentryPlus Alert® Technology Connection Kits

MasterSeries LF860-FS Large Lead Free* reduced pressure zone assembly backflow preventers help protect against high hazard (toxic) fluids in water services to industrial installations and applications.

Improved with a stainless-steel relief valve seat, this rugged assembly yields greater dependability and extended valve life. Available with OSY shutoff valves. Maximum working pressure is 175 psi (12.1 bar).

The ductile iron body is fused with ArmorTek™ coating technology to resist corrosion due to microbial induced corrosion (MIC) or exposed metal substrate.

This series features SentryPlus Alert® technology to detect excessive water discharges from the relief valve. When activated through an add-on sensor connection kit, the integrated flood sensor can trigger the alert system to notify personnel about potential flooding. Add-on sensor connection kits are available for BMS and cellular communication.

Features

  • Advanced ArmorTek coating technology with built-in electrochemical corrosion inhibitor and microbial inhibitor to resist corrosion of internal parts
  • Stainless-steel relief valve seat and stainless-steel check components for maximum performance and durability
  • Highly suitable for potable drinking water systems where code mandates protection from backpressure and backsiphonage conditions
  • Potable water protection against cross-connection contamination of high hazard (toxic) fluids in water services
  • Integrated sensor to detect potential flooding and trigger alerts, activated with add-on connection kit for building management systems or cellular communication

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Approval Information

For product-specific approval information, please refer to the product’s specification sheet or ask a Watts representative. For general information regarding any approval certification partners identified in the specification sheet, please visit our certification partners’ websites:


ASSE CSA FM Approvals NSF
UL ULC USC WQA