6 LF866-LG-CFM-FS

Item Number: F683159
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$15,309.76
Special Order
When Will it Ship: Contact for Lead Time
Estimated transit time: 2 to 5 Business Days

Brand - Febco
  • Size: 6 inch
  • Weight: 235.0 lb
  • Product Type: Reduced Pressure Zone Detector Assembly (Type II)
  • Body Material: Lead Free Ductile Iron with ArmorTek Coating
  • Maximum Working Pressure: 175 psi
  • Temperature Range: 33°F - 140°F
  • Relief Valve Features: Flood sensor with SentryPlus Alert technology
  • Bypass Meter: Totalizing cubic ft/min (CFM)
  • Certifications: ASSE 1047, UL Classified, FM Approved, NSF 61/372

Description

The FEBCO MasterSeries LF866 is a 6 inch Lead Free Reduced Pressure Zone Detector Assembly designed to protect potable water systems from high hazard backpressure and backsiphonage in industrial settings. Its ductile iron body features ArmorTek® coating for advanced corrosion resistance and includes stainless steel check components for durability. This assembly comes without shutoff valves and incorporates a cubic feet per minute (CFM) metered bypass to detect leaks or unauthorized water usage. An integrated flood sensor with SentryPlus Alert® technology signals excessive relief valve discharge, requiring an optional connection kit for activation. It is ASSE 1047, UL Classified, FM Approved, and NSF certified.

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Flood Sensor Connectivity

  • The integrated flood sensor with SentryPlus Alert® technology requires an add-on connection kit to be activated for remote alerts.
  • Connection kit options include those compatible with BMS (Building Management Systems), cellular communication, or the Sensor Control Monitor.
  • The Sensor Control Monitor enables integration with BAS via RS-485 Modbus or the Nexa® platform through Wi-Fi for comprehensive monitoring.
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Additional Details

The 6 inch FEBCO MasterSeries LF866 Lead Free Reduced Pressure Zone Detector Assembly is engineered to protect potable water systems from backpressure and backsiphonage conditions in high hazard/toxic industrial installations. This assembly is supplied without shutoff valves and includes a cubic feet per minute (CFM) metered bypass.

This backflow preventer features a flood sensor with SentryPlus Alert® technology to detect excessive water discharges from the relief valve. When paired with an optional add-on connection kit, the sensor activates to relay alerts for potential flooding events.

Construction & Features

  • Ductile iron body with ArmorTek® patented three-part advanced epoxy coating for superior resistance against microbial-induced corrosion (MIC) and exposed metal substrate corrosion.
  • Lead Free construction complies with low lead installation requirements and local governing codes.
  • Stainless steel relief valve seat and stainless steel check components ensure maximum performance and durability.
  • Inline serviceable assembly design allows for maintenance without special tools.
  • Features a modular and repairable pressure differential relief valve.
  • Includes accessible ball valve test cocks for simplified testing.

Auxiliary Bypass

  • Compact design with an inline serviceable 3/4 inch check assembly.
  • Equipped with a totalizing 5/8" x 3/4" water meter for cubic feet per minute (CFM) measurement.
  • Designed to detect potential underground water leaks and unauthorized water usage.

Note: This assembly is supplied without shutoff valves and is NOT an APPROVED ASSEMBLY for all configurations. Consult local codes and standards for requirements.

Specifications

General

  • Product Type: Reduced Pressure Zone Detector Assembly
  • 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 (internal and external surfaces)
  • Relief Valve Seat Material: Stainless steel
  • Check Seats Material: Stainless steel
  • Disc Holder Material: Stainless steel
  • Elastomer Disc Material: Silicone
  • Spring Material: Stainless steel
  • Bypass Meter Type: 5/8" x 3/4" Totalizing cubic ft/min water meter (CFM)

Performance

  • 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)

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
  • NSF Certified to NSF/ANSI/CAN 61 & 372
  • End Connections: Compliant to ASME B16.1 Class 125 & AWWA Class D Flange

FAQs

What is the primary function of the FEBCO MasterSeries LF866 assembly?

This assembly is designed to protect potable drinking water systems from contamination due to backpressure and backsiphonage, specifically in high hazard/toxic applications within industrial installations.

What does "Lead Free" mean for this product?

"Lead Free" indicates that the wetted surface of this product, which contacts consumable water, contains less than 0.25% of lead by weight, complying with low lead installation requirements and state codes.

How does the ArmorTek® coating benefit this backflow preventer?

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

How does the flood sensor work, and what is required for it to be active?

The flood sensor detects excessive water discharges from the relief valve. To activate its alert capabilities for potential flooding events, an add-on connection kit is required. This kit enables communication via BMS, cellular, or Wi-Fi through a Sensor Control Monitor.

What is included with this specific LF866 assembly?

This 6 inch LF866 assembly includes a ductile iron body with ArmorTek coating, replaceable stainless steel check seats, a flood sensor, and a 5/8" x 3/4" cubic feet per minute (CFM) metered bypass. It is supplied without shutoff valves.

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