8 LF886W-DOSY-GPM-FS

Item Number: F8007401
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$44,899.42
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When Will it Ship: Contact for Lead Time
Estimated transit time: 2 to 5 Business Days

Brand - Febco
  • Size: 8 inch
  • Weight: 662.0 lb
  • Pattern: N-Pattern
  • Flood Sensor: SentryPlus Alert® Technology
  • Body Material: Ductile iron with ArmorTek® coating
  • Shutoff Valves: Domestic OSY
  • Bypass Meter: Gallons Per Minute (GPM)
  • Maximum Working Pressure: 175 psi
  • Temperature Range: 33°F - 140°F

Description

The 8 inch FEBCO MasterSeries LF886W/WZ Reduced Pressure Detector Backflow Preventer Assembly provides crucial protection against high hazard backpressure and backsiphonage in industrial and commercial potable water systems. This N-pattern valve is designed for competitor drop-in replacement, featuring a durable ductile iron body with ArmorTek® corrosion-resistant coating and domestic OSY shutoff valves. It incorporates a stainless steel relief valve seat and check components for extended life. An integrated SentryPlus Alert® flood sensor detects discharge and can relay alerts via various communication methods when paired with an add-on kit. The GPM metered bypass also helps detect leaks, ensuring reliable system integrity at a 175 PSI maximum working pressure.

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Connections & Compatibility

This FEBCO MasterSeries Reduced Pressure Zone Detector Assembly is designed for drop-in replacement of existing competitor's N-pattern backflow preventers due to its longer gate-to-gate length. It features domestic OSY (Outside Stem and Yoke) shutoff valves and standard flanged end connections compliant with ASME B16.1 Class 125 & AWWA Class D Flange standards.

The integrated SentryPlus Alert® flood sensor requires an add-on connection kit (sold separately) to enable communication. This kit allows the sensor to relay alerts via Building Management Systems (BMS), cellular networks, RS-485 Modbus, or through the Nexa® platform using Wi-Fi connectivity.

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Additional Details

The 8 inch FEBCO MasterSeries LF886W/WZ Reduced Pressure Detector Backflow Preventer Assembly is designed to protect potable water systems from high hazard (toxic) fluids caused by backpressure and backsiphonage, commonly found in industrial installations and applications.

This assembly provides a drop-in replacement for competitor's N-pattern valves due to its longer gate-to-gate length and includes domestic outside stem and yoke (OSY) shutoff valves.

Key Features

  • Features a flood sensor with SentryPlus Alert® technology to detect continuous discharge from the relief valve.
  • Sensor functionality is activated by an add-on connection kit, enabling alerts via BMS, cellular communication, RS-485 Modbus, or Nexa® Wi-Fi platform.
  • Ductile iron body coated with ArmorTek® advanced epoxy system for corrosion resistance, applied to internal and external surfaces.
  • Incorporates a stainless steel relief valve seat and stainless steel check components for maximum performance and durability.
  • Inline serviceable assembly for main valve and 3/4 inch bypass check, requiring no special tools for maintenance.
  • Reversible and replaceable discs with field replaceable seats for extended valve life.
  • Gallons per minute (GPM) metered bypass accurately detects potential underground water leaks and unauthorized water usage.

NOTICE: An add-on connection kit is required to activate the flood sensor. Without the connection kit, the flood sensor is a passive component that does not communicate with any other device. The information contained herein is not intended to replace the full product installation and safety information available or the experience of a trained product installer.

Specifications

  • Product Type: Reduced Pressure Zone Detector Assembly (RPDA)
  • Size: 8 inch
  • Pattern: N-Pattern
  • Shutoff Valves: Domestic OSY
  • Bypass Meter: Gallons Per Minute (GPM)
  • Flood Sensor: SentryPlus Alert® Technology

Materials

  • Main Valve Body: Ductile iron Grade 65-45-12
  • Relief Valve Body: Ductile iron Grade 65-45-12
  • Coating: ArmorTek® Powder Coating (Internal & External)
  • Shutoff Valve Type: OSY Resilient Wedge Gate Valve
  • Check Seats: Stainless Steel
  • Relief Valve Seat: Stainless Steel
  • Disc Holder: Stainless Steel
  • Elastomer Disc: Silicone
  • Spring: Stainless Steel
  • Clamp: AWWA C606

Performance Ratings

  • Maximum Working Pressure: 175 psi
  • Minimum Working Pressure: 20 psi
  • Hydrostatic Test Pressure: 350 psi
  • Hydrostatic Safety Pressure: 700 psi
  • Temperature Range: 33°F - 140°F (0.5°C - 60°C)

Certificates & Approvals

  • Foundation for Cross-Connection Control and Hydraulic Research at The University of Southern California (FCCCHR-USC)
  • ASSE 1047
  • UL Classified (US & Canada)
  • FM Approved
  • IAPMO/CUPC
  • AWWA Standard C511 Compliant
  • CSA B64.4
  • End Connections: Compliant to ASME B16.1 Class 125 & AWWA Class D Flange

FAQs

What is the primary function of the FEBCO 8 inch LF886W/WZ backflow preventer?

Its primary function is to protect potable water supplies from contamination by high hazard (toxic) fluids due to backpressure and backsiphonage, commonly in industrial and commercial applications.

What does the "N-Pattern" designation signify for this assembly?

The "N-Pattern" designation indicates the valve's configuration, which allows for a longer gate-to-gate length, making it suitable as a drop-in replacement for competitor valves with a similar N-pattern orientation.

How does the SentryPlus Alert® flood sensor operate, and what additional components are needed for full functionality?

The SentryPlus Alert® flood sensor detects excessive water discharge from the relief valve. To activate its alert capabilities, an add-on connection kit (sold separately) is required, which enables communication through BMS, cellular networks, or Wi-Fi.

What materials are used to ensure the durability and corrosion resistance of this backflow preventer?

The main and relief valve bodies are constructed from ductile iron Grade 65-45-12, coated with ArmorTek® advanced epoxy for internal and external corrosion resistance. Key internal components like check seats, relief valve seats, and springs are made of stainless steel, with silicone elastomer discs.

What type of shutoff valves are included with this 8 inch backflow preventer assembly?

This assembly includes domestic OSY (Outside Stem and Yoke) resilient wedge gate shutoff valves, which are UL Classified and FM Approved according to AWWA Standard C515.

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