3 LF866-OSY-GPM-FS

Item Number: F683176
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$13,917.60
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When Will it Ship: Contact for Lead Time
Estimated transit time: 2 to 5 Business Days

Brand - Febco
  • Size: 3 inch
  • Weight: 245.0 lb
  • Body Material: Ductile Iron with ArmorTek Coating
  • Lead Free Construction: Wetted surface <0.25% lead
  • Shutoff Valves: UL Classified & FM Approved OS&Y Gate Valves
  • Flood Sensor: SentryPlus Alert Technology
  • Bypass Meter: Gallons Per Minute (GPM)
  • Maximum Working Pressure: 175 PSI
  • Temperature Range: 33°F - 140°F

Description

The FEBCO MasterSeries LF866 is a 3 inch lead free reduced pressure detector backflow preventer assembly designed for high hazard/toxic applications. It protects potable drinking water systems from backpressure and backsiphonage. Featuring a durable ductile iron body with ArmorTek advanced epoxy coating for corrosion resistance, and stainless steel check components for longevity. This assembly includes UL/FM Approved OS&Y shutoff valves, a GPM metered bypass for leak detection, and a SentryPlus Alert flood sensor for discharge monitoring. It meets strict lead-free requirements and multiple industry standards. Item number F683176.

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Flood Sensor Connectivity

  • An add-on connection kit is required to activate the integrated flood sensor. Without this kit, the sensor functions as a passive component and does not communicate with other devices.
  • Connection kit options provide various communication methods, including BMS, cellular communication, and the Sensor Control Monitor for integration with Building Automation Systems (BAS) via RS-485 Modbus or the Nexa® platform through Wi-Fi.

Bypass Assembly Functionality

  • The auxiliary bypass line, which includes a 5/8" x 3/4" water meter, is designed to detect potential leaks or unauthorized water usage within the water system.
  • This bypass also provides protection against backpressure and backsiphonage conditions in high hazard/toxic applications.
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Additional Details

This 3 inch lead free MasterSeries® LF866 Reduced Pressure Zone Detector Assembly is designed to protect potable drinking water systems against backpressure and backsiphonage conditions for high hazard/toxic applications, in accordance with Local Governing Water Utility Codes.

Construction & Design

  • Features a ductile iron body coated with ArmorTek®, a patented three-part advanced epoxy system engineered to reduce microbial-induced corrosion (MIC) and protect exposed metal substrate.
  • Equipped with UL Classified and FM Approved OS&Y (Outside Stem and Yoke) resilient seated shutoff valves that comply with AWWA C515.
  • Includes replaceable stainless steel check seats, a stainless steel relief valve seat, and ball valve test cocks.
  • Incorporates Lead Free construction, ensuring the wetted surface contains less than 0.25% of lead by weight, meeting low lead installation requirements.

Integrated Flood Sensor

  • Contains a flood sensor with SentryPlus Alert® technology on the relief valve to detect excessive water discharges.
  • When paired with an add-on connection kit, the sensor is activated to relay alerts (call, email, text) for potential flooding.
  • 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.

Auxiliary Bypass Assembly

  • Includes a gallons per minute (GPM) metered bypass with a 5/8" x 3/4" water meter, compliant with ANSI/AWWA Standard C700.
  • The bypass line detects potential underground water leaks and unauthorized water usage, while protecting against backpressure and backsiphonage conditions.
  • Features an inline serviceable 3/4" check assembly with field replaceable seat and disc; no special tools required for servicing.

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.

Use of the flood sensor does not replace the need to comply with all required instructions, codes, and regulations related to installation, operation, and maintenance of this product, including the need to provide proper drainage in the event of a discharge.

Specifications

  • Size: 3 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 (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 Material: Stainless Steel
  • 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
  • Wetted Surface Lead Content: Less than 0.25% by weight

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 this backflow preventer?

This FEBCO MasterSeries LF866 backflow preventer is designed to protect potable drinking water systems from backpressure and backsiphonage conditions, especially in high hazard/toxic applications like industrial installations, ensuring water safety.

What is the ArmorTek coating and why is it important?

ArmorTek is a patented three-part advanced epoxy coating system applied to the ductile iron body. It's engineered to reduce microbial-induced corrosion (MIC) and protect exposed metal substrates, significantly extending the product's lifespan and reliability.

How does the SentryPlus Alert flood sensor feature work?

The assembly includes a SentryPlus Alert flood sensor on the relief valve to detect excessive water discharges. When activated with an add-on connection kit, it relays alerts via call, email, or text for potential flooding events to notify personnel.

What type of shutoff valves are included with this assembly?

This assembly is fitted with UL Classified and FM Approved OS&Y (Outside Stem and Yoke) resilient seated gate shutoff valves, which comply with AWWA C515 for reliable operation.

Is this backflow preventer compliant with lead-free standards?

Yes, this MasterSeries LF866 assembly features Lead Free construction. The wetted surface of the product contains less than 0.25% lead by weight, complying with low lead installation requirements and relevant state codes.

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