8 LF860-OSY-FS

Item Number: F122943
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$36,106.36
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 (less than 0.25% lead by weight)
  • ArmorTek® advanced epoxy coating for corrosion resistance
  • Stainless steel relief valve seat and check components
  • SentryPlus Alert® flood sensor for discharge detection
  • Ductile iron valve body for durability
  • OSY (Outside Stem and Yoke) shutoff valves
  • Maximum Working Pressure: 175 PSI

Description

The 8 inch FEBCO LF860 MasterSeries Reduced Pressure Zone backflow preventer assembly provides critical protection against backpressure and backsiphonage of high hazard/toxic fluids in potable water systems. Featuring lead-free construction, a durable ductile iron body with ArmorTek® advanced epoxy coating for corrosion resistance, and stainless steel internal components for reliability. It includes OSY shutoff valves and a SentryPlus Alert® flood sensor to detect relief valve discharges, enhancing system safety and maintenance. The assembly is designed for easy inline serviceability.
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Additional Details

This 8 inch Lead Free MasterSeries® Reduced Pressure Zone backflow preventer assembly is designed to protect potable drinking water systems against backpressure and backsiphonage conditions from high hazard/toxic fluids, commonly used in industrial installations.

Lead Free Construction

  • Features Lead Free construction, ensuring the wetted surface contacted by consumable water contains less than 0.25% of lead by weight, meeting low lead installation requirements.

ArmorTek® Advanced Coating

  • The ductile iron valve body and internal components are coated with ArmorTek®, a patented three-part advanced epoxy system.
  • This coating is engineered to reduce microbial-induced corrosion (MIC) and protect exposed metal substrates, extending the valve's life and dependability.

Durable Components

  • Equipped with a stainless steel relief valve seat and stainless steel check components for maximum performance and durability.
  • Features a ductile iron valve body design for robust construction.
  • OSY (Outside Stem and Yoke) shutoff valves are UL Classified and FM Approved.
  • Includes inline serviceable assembly, requiring no special tools for maintenance.
  • Components like the captured modular spring assembly, reversible and replaceable discs, field replaceable seats, modular and repairable pressure differential relief valve, clapper check assembly, and captured O-ring design contribute to ease of service and longevity.

SentryPlus Alert® Flood Sensor

  • Includes a flood sensor with SentryPlus Alert® technology to detect excessive water discharges from the relief valve.
  • When activated by an add-on connection kit (sold separately), the sensor relays a signal to trigger a multichannel alert (call, email, text) to notify personnel about potential flooding events.
  • 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. Watts® is not responsible for the failure of alerts due to connectivity issues, power outages, or improper installation.

Specifications

  • Size: 8 inch
  • Product Type: Reduced Pressure Zone Backflow Preventer
  • Series: LF860 MasterSeries®

Materials

  • Main Valve Body: Ductile iron Grade 65-45-12
  • Relief Valve Body: Ductile iron Grade 65-45-12
  • Coating: ArmorTek powder coating, applied to 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: Stainless steel
  • Clamp: Stainless steel

Pressure & Temperature

  • 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 Listed

FAQs

What is the primary application for the FEBCO 8 inch LF860 backflow preventer?

This backflow preventer is designed for high hazard/toxic applications on potable drinking water systems to protect against backpressure and backsiphonage conditions, commonly in industrial installations.

What does the ArmorTek® coating provide?

ArmorTek® is a patented three-part advanced epoxy system applied to the ductile iron body and internals. It protects against microbial-induced corrosion (MIC) and safeguards exposed metal substrate, enhancing the assembly's durability and lifespan.

How does the SentryPlus Alert® flood sensor function?

The flood sensor detects excessive water discharges from the relief valve. When connected with an add-on connection kit, it relays a signal to trigger multichannel alerts (call, email, text) to notify personnel of potential flooding.

Are the shutoff valves included with this assembly?

Yes, this assembly includes OSY (Outside Stem and Yoke) resilient wedge gate shutoff valves, which are UL Classified and FM Approved per AWWA C515 standards.

What are the key material components used for durability in this backflow preventer?

The assembly features a durable ductile iron main valve and relief valve body, ArmorTek® powder coating, and stainless steel for the relief valve seat, check components, disc holder, and springs, all contributing to its robust design and long-term performance.

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