6 LF866-OSY-GPM-FS

Item Number: F683180
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$24,489.60
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
  • Coating: ArmorTek® 3-part advanced epoxy system
  • Max. Working Pressure: 175 psi
  • Flood Detection: Integrated flood sensor with SentryPlus Alert®
  • Bypass Meter: 5/8" x 3/4" GPM water meter
  • Shutoff Valves: OS&Y resilient seated gate valves
  • Approvals: ASSE 1047, UL Classified, FM Approved, AWWA C511

Description

The FEBCO 6 inch Lead Free MasterSeries Reduced Pressure Detector Backflow Preventer Assembly, model LF866, protects potable drinking water systems from high hazard backpressure and backsiphonage. Featuring a durable ductile iron body with ArmorTek® advanced epoxy coating for corrosion resistance, it ensures long-term reliability. Key components like the relief valve seat and check components are stainless steel. An integrated flood sensor with SentryPlus Alert® technology detects excessive water discharges, while a GPM metered bypass identifies leaks and unauthorized usage. This assembly includes OS&Y shutoff valves and meets ASSE 1047, UL, FM, and AWWA C511 standards, making it suitable for demanding industrial applications.

Help Me Connect

Flood Sensor Activation

  • The integrated flood sensor requires an add-on connection kit to activate its alert capabilities. Without this kit, the sensor is passive and will not communicate with other devices.
  • Connection kit options include those for Building Management Systems (BMS), cellular communication, or the Sensor Control Monitor which allows integration with a Building Automation System (BAS) via RS-485 Modbus or the Nexa® platform through Wi-Fi.

Main Connections

  • This assembly is designed for installation on potable water supply lines. The end connections are compliant with ASME B16.1 Class 125 and AWWA Class D Flange standards.
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Additional Details

The 6 inch Lead Free MasterSeries® LF866 Reduced Pressure Zone Detector Assembly (Type II) is engineered to safeguard potable drinking water systems from backpressure and backsiphonage in high hazard/toxic fluid applications. This assembly is ideal for industrial installations and ensures compliance with local governing water utility codes.

Key Features

  • Lead Free Construction: Wetted surfaces contain less than 0.25% lead by weight for safe use with consumable water.
  • ArmorTek® Coating: Features a patented three-part advanced epoxy system to resist microbial-induced corrosion (MIC) and protect exposed metal substrates, enhancing durability and extending service life.
  • Flood Sensor with SentryPlus Alert® Technology: Detects excessive water discharges from the relief valve, providing early notification of potential flooding. Note: An add-on connection kit is required to activate the flood sensor's alert capabilities. Without it, the sensor operates as a passive component.
  • Stainless Steel Components: Relief valve seat and check components are constructed from stainless steel for maximum performance and durability.
  • Ductile Iron Body: Provides robust and reliable structural integrity.
  • Detector Bypass Assembly: Includes a gallons per minute (GPM) water meter to detect potential underground leaks or unauthorized water usage.
  • Inline Serviceable: Designed for easy maintenance without special tools.
  • OS&Y Shutoff Valves: Equipped with UL Classified and FM Approved outside stem and yoke resilient seated shutoff valves for reliable isolation.

Specifications

  • Product Type: Reduced Pressure Zone Detector Assembly
  • Model: LF866V
  • 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
  • Lead Content: Less than 0.25% by weight (wetted surfaces)
  • 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
  • Shutoff Valves: OS&Y Resilient Wedge Gate Valve (UL Classified and FM Approved, ANSI/AWWA C515 Compliant)
  • Check Seats Material: Stainless Steel
  • Relief Valve Seat Material: Stainless Steel
  • Disc Holder Material: Stainless Steel
  • Elastomer Disc Material: Silicone
  • Spring Material: Stainless Steel

Bypass Assembly

  • Bypass Meter Type: 5/8" x 3/4" Gallons per Minute (GPM) water meter (ANSI/AWWA C700 Compliant)
  • Bypass Check Assembly: Inline serviceable 3/4" check assembly

Certificates & Approvals

  • Foundation for Cross-Connection Control and Hydraulic Research (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 LF866 backflow preventer?

Its primary purpose is to protect potable drinking water systems from contamination due to backpressure and backsiphonage of high hazard (toxic) fluids, commonly used in industrial installations.

Is this backflow preventer considered "lead free"?

Yes, it features Lead Free construction, meaning the wetted surface of the product that contacts consumable water contains less than 0.25% of lead by weight, complying with low lead installation requirements.

How does the ArmorTek® coating benefit the assembly?

ArmorTek® is a patented three-part advanced epoxy system applied to the iron components. It is engineered to reduce microbial-induced corrosion (MIC) and protect exposed metal substrates, thereby extending the life and dependability of the backflow preventer.

What does the flood sensor do, and how is it activated?

The flood sensor detects excessive water discharges from the relief valve. It features SentryPlus Alert® technology to relay signals for potential flooding. To activate these alerts, an add-on connection kit is required; without it, the sensor is a passive component.

What is the maximum operating pressure for this 6 inch LF866 assembly?

The maximum working pressure for this 6 inch FEBCO LF866 backflow preventer is 175 psi (12.1 bar).

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