8 LF886W-DOSY-LM-FS

Item Number: F8007402
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$44,835.74
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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
  • Valve Type: Reduced Pressure Zone Detector Assembly (Type II)
  • Lay Length: Competitor N-Pattern
  • Main Valve Body Material: Ductile Iron Grade 65-45-12
  • Coating: ArmorTek® corrosion-resistant epoxy
  • Relief Valve Seat: Stainless Steel
  • Check Components: Stainless Steel
  • Includes: SentryPlus Alert® Flood Sensor
  • Max Working Pressure: 175 psi

Description

The 8 inch FEBCO MasterSeries LF886W Reduced Pressure Detector Assembly is a lead-free backflow preventer designed for high hazard (toxic) applications in industrial water services. Featuring a longer N-pattern lay-length, it allows for direct replacement of competitor valves. The assembly includes a ductile iron body with ArmorTek® corrosion-resistant coating, stainless steel check seats, and a stainless steel relief valve seat for enhanced durability. A SentryPlus Alert® flood sensor is integrated to detect excessive relief valve discharge, providing alerts when connected with an add-on kit. This Type II RPDA offers reliable protection against backpressure and backsiphonage.

Help Me Connect

Flood Sensor Connectivity

  • 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.
  • Connection kit options include BMS (Building Management System), cellular communication, and the Sensor Control Monitor.
  • The Sensor Control Monitor enables integration with BMS via RS-485 Modbus or the Nexa® platform through Wi-Fi.
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Additional Details

This 8 inch lead free MasterSeries® reduced pressure detector backflow preventer assembly (LF886W) protects against high hazard (toxic) fluids in water services for industrial installations and applications. It is designed with a longer lay-length for drop-in replacement of competitor’s N-pattern valves.

This assembly includes a ductile iron body with ArmorTek® corrosion-resistant coating, replaceable stainless steel check seats, a stainless steel relief valve seat, bypass, and ball valve test cocks. It features a SentryPlus Alert® flood sensor to detect excessive water discharges from the relief valve. When paired with an add-on connection kit, the sensor is activated to relay alerts for potential flooding events.

Main Valve Features

  • Stainless steel relief valve seat and stainless steel check components for maximum performance and durability
  • Longer gate-to-gate length for drop-in replacement of longer valves
  • Inline serviceable assembly; no special tools required
  • Captured modular spring assembly
  • Reversible and replaceable discs
  • Field replaceable seats
  • Ductile iron valve body design
  • ArmorTek coating technology to resist corrosion of internals
  • Modular and repairable pressure differential relief valve
  • Clapper check assembly
  • Captured O-ring design
  • Sensor on relief valve for flood detection, activated by add-on connection kit for BMS or cellular network communication

Auxiliary Bypass Features

  • Compact design; remains in main valve assembly profile
  • Inline serviceable 3/4" check assembly; no special tools required
  • No special tools required for servicing
  • Field replaceable seat and disc
  • Detect potential underground water leaks
  • Detect 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.

Specifications

  • Model: LF886W
  • Size: 8 inch
  • Valve Type: Reduced Pressure Zone Detector Assembly (Type II)
  • Flow Orientation: N-Pattern (Horizontal)

Materials

  • Main Valve Body: Ductile iron Grade 65-45-12
  • Relief Valve Body: Ductile iron Grade 65-45-12
  • Coating: ArmorTek powder coating, applied to internal and external surfaces
  • Shutoff Valves: OSY resilient wedge gate valve AWWA C515 (UL Classified and FM Approved)
  • Check Seats: Stainless steel
  • Relief Valve Seat: Stainless steel
  • Disc Holder: Stainless steel
  • Elastomer Disc: Silicone
  • Spring: Stainless steel
  • Clamp: AWWA C606

Pressure - Temperature

  • Max. Working Pressure: 175 psi (12.1 bar)
  • Min. Working Pressure: 20 psi (1.4 bar)
  • Hydrostatic Test Pressure: 350 psi (24.1 bar)
  • Hydrostatic Safety Pressure: 700 psi (48.3 bar)
  • Temperature Range: 33°F - 140°F (0.5°C ~ 60°C) continuous

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
  • End Connections: Compliant to ASME B16.1 Class 125 & AWWA Class D Flange
  • CSA B64.4

FAQs

What is the primary use of this backflow preventer?

This backflow preventer is primarily used to protect potable water systems from high hazard (toxic) fluids due to backpressure and backsiphonage in industrial installations and applications.

What is the significance of the "N-pattern lay-length"?

The N-pattern lay-length means this assembly is designed to be a direct, drop-in replacement for competitor valves with a similar N-pattern configuration, simplifying installation.

Does this assembly include a flood sensor?

Yes, it includes a SentryPlus Alert® flood sensor on the relief valve to detect excessive water discharges. An add-on connection kit is required to activate its alert capabilities.

What material is the main valve body made from?

The main valve body is constructed from ductile iron Grade 65-45-12 and coated with ArmorTek® advanced epoxy for corrosion resistance.

What are the maximum operating pressure and temperature range?

The maximum working pressure is 175 psi (12.1 bar). The continuous operating temperature range is 33°F to 140°F (0.5°C to 60°C).

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