6 LF866-DOSY-GPM-FS

Item Number: F683168
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$24,484.67
Special Order
When Will it Ship: Contact for Lead Time
Estimated transit time: 2 to 5 Business Days

Brand - Febco
  • Size: 6 inch
  • Weight: 520.0 lb
  • Lead Free Construction: Yes
  • Body Material: Ductile Iron Grade 65-45-12
  • Corrosion Protection: ArmorTek® powder coating
  • Max Working Pressure: 175 psi
  • Temperature Range: 33°F - 140°F
  • Flood Detection: Integrated SentryPlus Alert® sensor
  • Bypass Meter: 5/8" x 3/4" GPM

Description

The 6 inch FEBCO LF866-DOSY-GPM-FS is a Lead Free Reduced Pressure Zone Detector Assembly designed to protect potable water systems from backpressure and backsiphonage in high hazard applications. Its ductile iron body features ArmorTek® coating for superior corrosion resistance and includes stainless steel internal components for durability. An integrated flood sensor with SentryPlus Alert® technology detects excessive relief valve discharge, requiring an add-on connection kit for activation. The assembly also incorporates UL Classified/FM Approved OS&Y shutoff valves and a GPM metered bypass to detect leaks. Item number F683168.

Help Me Connect

Flood Sensor Activation

  • The integrated flood sensor requires an add-on connection kit to become active and communicate alerts.
  • Without a connection kit, the sensor is passive and will not relay signals for potential flooding.
  • Connection kit options include compatibility with BMS, cellular communication, or the Sensor Control Monitor.
  • The Sensor Control Monitor enables integration with Building Automation Systems (BAS) via RS-485 Modbus or the Nexa® platform through Wi-Fi.
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Additional Details

This 6 inch Lead Free MasterSeries® Reduced Pressure Zone Detector Assembly (Type II) is designed to protect potable water systems from backpressure and backsiphonage conditions in high hazard/toxic applications. It includes a flood sensor to detect excessive water discharges from the relief valve.

Construction & Coating

  • Ductile iron main valve and relief valve bodies (Grade 65-45-12)
  • Patented ArmorTek® powder coating applied to internal and external surfaces for advanced protection against microbial-induced corrosion (MIC) and exposed metal substrate corrosion
  • Lead Free construction to comply with low lead installation requirements

Valve Components

  • Stainless steel relief valve seat and stainless steel check components for maximum performance and durability
  • Inline serviceable assembly, requiring no special tools
  • Captured modular spring assembly
  • Reversible and replaceable discs
  • Field replaceable seats
  • Ductile iron valve body design
  • Modular and repairable pressure differential relief valve
  • Clapper check assembly
  • Captured O-ring design

Shutoff Valves & Test Cocks

  • Fitted with UL Classified and FM Approved OS&Y resilient wedge gate valves compliant to AWWA C515
  • Contains four properly located resilient seated ball valve test cocks

Flood Detection System

  • Integrated flood sensor with SentryPlus Alert® technology to detect continuous discharge from the relief valve
  • 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, cellular communication, and the Sensor Control Monitor for integration with BAS via RS-485 Modbus or the Nexa® platform through Wi-Fi.

Bypass Assembly

  • Detector bypass assembly with a gallons per minute (GPM) meter (5/8" x 3/4" water meter, ANSI/AWWA C700 Compliant)
  • Designed to detect potential underground water leaks and unauthorized water usage

The information provided here is not intended to replace the full product installation and safety information. It is required to thoroughly read all installation instructions and product safety information before beginning installation. Inquire with governing authorities for local installation requirements.

Specifications

  • Product Type: Reduced Pressure Zone Detector Assembly (Type II)
  • Size: 6 inch
  • Main Valve Body Material: Ductile iron Grade 65-45-12
  • Relief Valve Body Material: Ductile iron Grade 65-45-12
  • Coating: ArmorTek powder coating
  • Check Seats Material: Stainless steel
  • Relief Valve Seat Material: Stainless steel
  • Disc Holder Material: Stainless steel
  • Elastomer Disc Material: Silicone
  • Spring Material: Stainless steel
  • Shutoff Valves: OSY resilient wedge gate valve (UL Classified and FM Approved)
  • Bypass Meter: 5/8" x 3/4" GPM water meter

Performance Data

  • Maximum Working Pressure: 175 psi (12.1 bar)
  • Minimum 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
  • Assembly Flow Orientation: Horizontal

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
  • NSF Certified to NSF/ANSI/CAN 61 & 372

FAQs

What is the primary purpose of the FEBCO 6 inch LF866 Reduced Pressure Zone Detector Assembly?

This assembly is designed to protect potable drinking water systems from contamination due to backpressure and backsiphonage from high hazard/toxic sources. It also includes a flood sensor to detect excessive water discharges.

Is this backflow preventer suitable for all water systems?

It is specifically designed for potable drinking water systems and high hazard/toxic applications where local governing codes mandate protection from non-potable quality water being pumped or siphoned back into the system.

How does the ArmorTek® coating benefit this product?

The ArmorTek® patented three-part advanced epoxy coating system is applied to the ductile iron components to reduce microbial-induced corrosion (MIC) and protect exposed metal substrates, enhancing the assembly's longevity.

How does the flood sensor function, and what is needed for it to work?

The integrated flood sensor with SentryPlus Alert® technology detects excessive water discharges from the relief valve. To activate the sensor and enable alert notifications (call, email, text), an add-on connection kit is required; without it, the sensor remains passive.

What is the maximum operating pressure and temperature range for this assembly?

The maximum working pressure for this 6 inch assembly is 175 psi (12.1 bar). It can operate continuously within a temperature range of 33°F to 140°F (0.5°C to 60°C).

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