2 1/2 LF860-NRS RP-FS

Item Number: F122932
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$9,452.84
Special Order
When Will it Ship: Contact for Lead Time
Estimated transit time: 2 to 5 Business Days

Brand - Febco
  • Size: 2 1/2 inch
  • Lead Free Construction: Yes
  • Body Material: Ductile Iron Grade 65-45-12
  • Corrosion Protection: ArmorTek® 3-part advanced epoxy coating
  • Shutoff Valves: Non-Rising Stem (NRS)
  • Flood Detection: SentryPlus Alert® technology with flood sensor
  • Max. Working Pressure: 175 psi
  • Temperature Range: 33°F - 140°F

Description

This 2 1/2 inch FEBCO MasterSeries LF860-NRS Reduced Pressure Zone Backflow Preventer Assembly is designed to protect potable water systems from high hazard/toxic fluids. Featuring lead-free construction and a durable ductile iron body with ArmorTek® advanced epoxy coating for superior corrosion resistance, this assembly ensures long-term performance. It includes non-rising stem shutoff valves and a flood sensor with SentryPlus Alert® technology to detect excessive relief valve discharge, providing enhanced protection for industrial and health hazard applications. Item number F122932.

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Flood Sensor Connectivity

The integrated flood sensor with SentryPlus Alert® technology requires an add-on connection kit to be fully activated for communication and alerts. Without this kit, the sensor operates as a passive component. Available connection kit options include integration with Building Automation Systems (BAS) via RS-485 Modbus, cellular network communication, or connection to the Nexa® platform through Wi-Fi.

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Additional Details

This 2 1/2 inch Lead Free MasterSeries® LF860 Reduced Pressure Zone Backflow Preventer Assembly is designed to protect potable drinking water systems against backpressure and backsiphonage conditions from high hazard/toxic fluids in industrial applications, complying with Local Governing Water Utility Code.

The assembly features a ductile iron body fused with a patented ArmorTek® 3-part advanced epoxy coating system for integrated protection against electrochemical corrosion and microbial-induced growth. It also includes an integrated flood sensor with SentryPlus Alert® technology to detect excessive water discharges from the relief valve.

Key Features

  • Lead Free construction to comply with low lead installation requirements.
  • Ductile iron valve body with patented ArmorTek® coating technology to resist corrosion of internals.
  • Stainless steel relief valve seat and stainless steel check components for maximum performance and durability.
  • Inline serviceable assembly; no special tools required for servicing relief valve and check modules.
  • Non-rising stem (NRS) shutoff valves for reliable isolation.
  • Integrated flood sensor with SentryPlus Alert® technology to detect excessive water discharges from the relief valve.
  • Modular and repairable pressure differential relief valve, clapper check assembly, and captured O-ring design.
  • Captured modular spring assembly, and reversible and replaceable discs for easy maintenance.

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. Watts® is not responsible for the failure of alerts due to connectivity issues, power outages, or improper installation.

Specifications

General

  • Product Type: Reduced Pressure Zone Backflow Preventer
  • Assembly Size: 2 1/2 inch
  • Model: LF860-NRS RP-FS
  • Application: High Hazard (Toxic)
  • Shutoff Valves: Non-Rising Stem (NRS)
  • Flood Sensor: Integrated with SentryPlus Alert® technology

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 Valve Material: Resilient wedge gate valve
  • Check Seats: Stainless steel
  • Relief Valve Seat: Stainless steel
  • Disc Holder: Stainless steel
  • Elastomer Disc: Silicone
  • Spring: 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: Foundation for Cross-Connection Control and Hydraulic Research at The University of Southern California (FCCCHR-USC)
  • Listing: ASSE 1013 Listed
  • Certification: UL Classified (US & Canada)
  • Approval: FM Approved
  • Standard: IAPMO
  • Compliance: AWWA Standard C511
  • End Connections: Compliant to ASME B16.1 Class 125 & AWWA Class D Flange
  • Standard: CSA B64.4
  • Certification: NSF Certified to NSF/ANSI 61-G

FAQs

What is the primary purpose of the LF860-NRS backflow preventer?

The primary purpose of this backflow preventer is to protect potable drinking water systems from contamination by high hazard (toxic) fluids caused by backpressure or backsiphonage, especially in industrial installations.

Is this backflow preventer lead-free?

Yes, the LF860-NRS assembly features lead-free construction, meaning the wetted surface contacted by consumable water contains less than 0.25% of lead by weight, complying with low lead installation requirements.

How does the ArmorTek® coating benefit this assembly?

The patented ArmorTek® 3-part advanced epoxy coating system is applied to the ductile iron body to reduce microbial-induced corrosion (MIC) and protect exposed metal substrates, significantly extending the assembly's lifespan and dependability.

What is the function of the integrated flood sensor?

The integrated flood sensor with SentryPlus Alert® technology detects excessive water discharges from the relief valve. When paired with an add-on connection kit, it can relay signals for potential flooding events via call, email, text, or integrate with Building Automation Systems.

What type of shutoff valves are included with this assembly?

This assembly is fitted with Non-Rising Stem (NRS) shutoff valves. These valves are compliant with AWWA C509 standards.

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