8 LF860-NRS-FS

Item Number: F122936
1 1
$33,846.70
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When Will it Ship: Contact for Lead Time
Estimated transit time: 2 to 5 Business Days

Brand - Febco
  • Size: 8 inch
  • Weight: 1040.0 lb
  • Lead Free construction (less than 0.25% lead by weight)
  • Ductile iron body with ArmorTek® advanced epoxy coating
  • NRS (Non-Rising Stem) shutoff valves
  • Integrated flood sensor with SentryPlus Alert® technology
  • Maximum Working Pressure: 175 psi
  • Continuous Temperature Range: 33°F - 140°F
  • Stainless steel relief valve seat and check components

Description

This 8 inch FEBCO MasterSeries LF860 reduced pressure zone backflow preventer assembly with NRS shutoff valves protects potable water systems from high hazard/toxic backpressure and backsiphonage. Its lead-free ductile iron body features ArmorTek® advanced epoxy coating for superior corrosion resistance and extended life. The assembly includes a stainless steel relief valve seat, stainless steel check components, and an integrated flood sensor with SentryPlus Alert® technology for discharge detection. Suitable for industrial installations where local codes mandate robust backflow prevention, it ensures maximum performance and durability. Item number F122936.

Help Me Connect

This 8 inch LF860-NRS-FS backflow preventer assembly is designed for horizontal installation on potable water supply lines at points of cross-connection where protection against high hazard/toxic fluids is required.

Connections

  • Equipped with NRS resilient wedge gate shutoff valves for inlet and outlet control.
  • End connections are compliant to ASME B16.1 Class 125 and AWWA Class D Flange standards.
  • The integrated flood sensor requires an add-on connection kit to activate its alert functions, enabling communication with Building Management Systems (BMS), cellular networks, or integration with BAS via RS-485 Modbus or the Nexa® platform through Wi-Fi.

Inquire with governing authorities for local installation requirements. Proper drainage must be designed for discharge events.

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Additional Details

This 8 inch lead free MasterSeries® LF860 reduced pressure zone backflow preventer assembly protects potable water systems from backpressure and backsiphonage of high hazard/toxic fluids. It is designed for industrial installations and applications where local codes mandate protection from non-potable water.

Key Features

  • Features Non-Rising Stem (NRS) shutoff valves for reliable flow control.
  • Integrated flood sensor with SentryPlus Alert® technology detects excessive water discharges from the relief valve.
  • When paired with an add-on connection kit, the sensor is activated to relay alerts for potential flooding events via BMS, cellular communication, or the Sensor Control Monitor for integration with BAS via RS-485 Modbus or the Nexa® platform through Wi-Fi.
  • Durable ductile iron body construction with patented ArmorTek® 3-part advanced epoxy coating system to resist microbial-induced corrosion (MIC) and protect exposed metal substrate.
  • Utilizes a stainless steel relief valve seat and stainless steel check components for maximum performance and extended durability.
  • Designed as an inline serviceable assembly, allowing maintenance of check modules and the pressure differential relief valve without special tools.
  • Lead free construction ensures compliance with low lead installation requirements, with wetted surfaces containing less than 0.25% lead by weight.

An add-on connection kit is required to activate the flood sensor's alert functions; without it, the sensor is a passive component that does not communicate with other devices.

Specifications

  • Size: 8 inch
  • Product Type: Reduced Pressure Zone Backflow Preventer Assembly
  • SKU: F122936

Materials

  • Main Valve Body: Ductile Iron Grade 65-45-12
  • Relief Valve Body: Ductile Iron Grade 65-45-12
  • Coating: ArmorTek Powder Coating (internal and external surfaces)
  • Shutoff Valves: NRS Resilient Wedge Gate Valve (AWWA C509)
  • Check Seats: Stainless Steel
  • Relief Valve Seat: Stainless Steel
  • Disc Holder: Stainless Steel
  • Elastomer Disc: Silicone
  • Spring: Stainless Steel

Pressure & Temperature

  • 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

Dimensions & Weight (NRS Gate Valves)

  • Overall Length (A): 65 in (1651 mm)
  • Length (B): 41 3/4 in (1061 mm)
  • Width (C): 15 5/8 in (397 mm)
  • Depth (D): 13 5/8 in (345 mm)
  • Height (E): 23 1/2 in (597 mm)
  • Height (G): 7 in (178 mm)
  • Height (H): 11 1/8 in (283 mm)
  • Weight: 807 lb (366 kg)

Certificates & Approvals

  • Approved by 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

FAQs

What is the primary use of the FEBCO 8 LF860-NRS-FS backflow preventer?

Its primary use is to protect potable drinking water systems from backpressure and backsiphonage conditions caused by high hazard or toxic fluids, typically in industrial installations where local codes require such protection.

Is this backflow preventer lead-free?

Yes, the FEBCO 8 LF860-NRS-FS is designed with lead-free construction, meaning the wetted surfaces that contact consumable water contain less than 0.25% lead by weight, complying with low lead installation requirements.

How does the ArmorTek® coating benefit this assembly?

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, significantly extending the life and durability of the backflow preventer.

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 to trigger multichannel alerts (call, email, text) to notify personnel of potential flooding.

What type of shutoff valves are included with this assembly?

This assembly is fitted with Non-Rising Stem (NRS) resilient wedge gate shutoff valves, which comply with AWWA C509 standards. These valves are used for controlling the flow at the inlet and outlet of the backflow preventer.