8 LF860-DOSY-FS

Item Number: F683102
1 1
$36,096.98
Special Order
When Will it Ship: Contact for Lead Time
Estimated transit time: 2 to 5 Business Days

Brand - Febco
  • Size: 8 inch
  • Weight: 1050.0 lb
  • Lead Free Construction: Yes
  • Body Material: Ductile Iron Grade 65-45-12
  • Coating: ArmorTek® Advanced Epoxy
  • Shutoff Valves: Domestic OSY Gate Valves
  • Max. Working Pressure: 175 PSI
  • Flood Sensor with SentryPlus Alert® Technology
  • Inline Serviceable: No special tools required

Description

The 8 inch FEBCO MasterSeries LF860 Lead Free Reduced Pressure Zone backflow preventer is engineered for high hazard/toxic applications, safeguarding potable water systems from contamination due to backpressure or backsiphonage. This robust assembly features an ArmorTek® epoxy-coated ductile iron body for superior corrosion resistance and includes stainless-steel relief valve seats and check components for long-term durability. Domestic OSY resilient seated gate valves provide reliable shutoff. An integrated SentryPlus Alert® flood sensor provides early detection of water discharge, enhancing system safety. It is serviceable inline without special tools.

Help Me Connect

This 8 inch Lead Free Reduced Pressure Zone assembly is designed for installation on potable water supply lines to protect against backpressure and backsiphonage in high hazard/toxic applications. It connects to the main water line via flanged connections that are compliant with ASME B16.1 Class 125 and AWWA Class D Flange standards. An add-on connection kit (sold separately) is required to activate the integrated flood sensor for communication with Building Automation Systems (BAS), cellular networks, or the Nexa® platform.

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Additional Details

The FEBCO MasterSeries LF860 Reduced Pressure Zone assembly is an 8 inch backflow preventer designed to protect potable drinking water systems from high hazard/toxic backpressure and backsiphonage conditions, commonly found in industrial installations and applications. This assembly helps ensure compliance with Local Governing Water Utility Codes by preventing non-potable water from entering the clean water supply.

The unit features Lead Free construction and an ArmorTek® epoxy coating for advanced corrosion resistance.

Design and Construction

  • Features an epoxy coated ductile iron body, offering robust protection against electrochemical corrosion and microbial-induced growth.
  • Equipped with domestic outside stem and yoke (OSY) resilient seated gate valves for reliable shutoff.
  • Includes stainless-steel relief valve seat and stainless-steel check components for enhanced durability and performance.
  • Designed for inline serviceability without the need for special tools.
  • Incorporates a pressure differential relief valve and spring-loaded check valves to maintain proper function.

Flood Detection and Alerting

  • A built-in flood sensor with SentryPlus Alert® technology detects excessive water discharges from the relief valve.
  • When activated with an add-on connection kit (sold separately), the sensor relays signals to trigger multichannel alerts (call, email, text) for potential flooding events.
  • Connection kit options allow integration with Building Automation Systems (BAS) via RS‑485 Modbus or the Nexa® platform through Wi-Fi, as well as cellular communication.

Specifications

  • Size: 8 inch
  • Body Material: Ductile Iron Grade 65-45-12
  • Valve Type: Reduced Pressure Zone (RPZ) Backflow Preventer
  • Shutoff Valves: Domestic OSY Resilient Seated Gate Valves (AWWA C515)
  • Coating: ArmorTek® 3-part Advanced Epoxy System
  • Relief Valve Seat Material: Stainless Steel
  • Check Components: Stainless Steel
  • Elastomer Disc Material: Silicone
  • Spring Material: Stainless Steel
  • 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

  • Approved by the Foundation for Cross-Connection Control and Hydraulic Research at The University of Southern California (FCCCHR-USC)
  • ASSE 1013 Listed
  • UL Classified (US & Canada)
  • FM Approved
  • IAPMO
  • AWWA Standard C511 Compliant
  • End Connections: Compliant to ASME B16.1 Class 125 & AWWA Class D Flange
  • CSA B64.4
  • NSF Certified to NSF/ANSI 61-G

FAQs

What is the primary purpose of the FEBCO MasterSeries LF860 assembly?

The primary purpose of this assembly is to protect potable drinking water systems from contamination caused by backpressure or backsiphonage of high hazard/toxic fluids, ensuring compliance with local water utility codes.

Is this backflow preventer assembly lead-free?

Yes, the FEBCO MasterSeries LF860 features Lead Free construction, meaning the wetted surfaces contain less than 0.25% lead by weight, complying with low lead installation requirements.

What is ArmorTek® coating and why is it used?

ArmorTek® is a patented three-part advanced epoxy coating system applied to the ductile iron body. It is engineered to reduce microbial-induced corrosion (MIC) and protect exposed metal substrates, enhancing the longevity and durability of the backflow preventer.

How does the flood sensor function?

The integrated flood sensor with SentryPlus Alert® technology detects excessive water discharges from the relief valve. To activate its alerting capabilities, an add-on connection kit (sold separately) is required, which enables multichannel notifications via call, email, text, or integration with BAS.

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

This 8-inch assembly has a maximum working pressure of 175 psi (12.1 bar) and operates continuously within a temperature range of 33°F to 140°F (0.5°C to 60°C).