3/4 LF860-QT-RP-FS

Item Number: F683001
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$947.21
In Stock (10)
Estimated transit time: 2 to 5 Business Days Eligible for Express Shipping

Brand - Febco
  • 3/4 inch Lead Free Reduced Pressure Zone Backflow Preventer
  • Flood sensor with SentryPlus Alert technology for discharge detection
  • Lead Free* cast copper silicon alloy body
  • Max. Working Pressure: 175 psi
  • Temperature Range: 32°F to 140°F
  • Inline serviceable assembly for easy maintenance
  • Quarter turn shutoff ball valves
  • ASSE 1013 and CSA B64.4 approved

Description

This 3/4 inch FEBCO LF860 Series Lead Free Reduced Pressure Zone Backflow Preventer Assembly is engineered for health-hazard applications, safeguarding potable water from contamination due to backpressure and backsiphonage. It features lead free cast copper silicon alloy construction, threaded quarter-turn shutoff valves, and an inline serviceable design for easy maintenance. An integrated SentryPlus Alert flood sensor detects excessive relief valve discharge, with optional connectivity to BMS, cellular, or Wi-Fi systems for remote alerts. Rated for 175 psi max working pressure and temperatures from 32°F to 140°F, it meets ASSE 1013 and CSA B64.4 standards for reliable performance.

Help Me Connect

This FEBCO LF860 series assembly is designed for use in potable drinking water systems requiring protection from backpressure and backsiphonage conditions. It is ideal for installations in industrial plants, hospitals, morgues, mortuaries, chemical plants, irrigation systems, boiler feed, and water lines. The integral flood sensor can be activated with an add-on connection kit (sold separately) to relay alerts to facility personnel. Connection kit options include BMS, cellular communication, and the Sensor Control Monitor for integration with BAS via RS-485 Modbus or the Nexa platform through Wi-Fi.

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Additional Details

This 3/4 inch lead free reduced pressure zone backflow preventer assembly prevents the reverse flow of high hazard (toxic) fluids from entering the potable water supply due to backsiphonage and/or backpressure. It is primarily used in potable drinking water systems requiring maximum protection in industrial plants, hospitals, morgues, mortuaries, chemical plants, irrigation systems, and boiler feed water lines.

Features

  • Lead Free* construction to comply with installation requirements
  • Potable water protection against cross-connection contamination of high hazard (toxic) fluids in water services
  • Inline serviceable assembly requiring no special tools for easy maintenance
  • Includes a flood sensor with SentryPlus Alert technology to detect excessive water discharges from the relief valve
  • Flood sensor is installed on the assembly exterior and does not alter assembly functions or certifications
  • Flood alerts feature activated with an add-on sensor connection kit (sold separately)
  • Sensor connection kit options include BMS, cellular communication, and the Sensor Control Monitor
  • Sensor Control Monitor enables integration with BAS via RS-485 Modbus or the Nexa platform by Wi-Fi connectivity
  • Equipped with threaded quarter turn ball valves
  • Modular relief valve and check valves for simplified maintenance

Specifications

  • SKU: F683001
  • Brand: FEBCO
  • Size: 3/4 inch
  • Assembly Type: Reduced Pressure Zone Backflow Preventer
  • Construction: Lead Free* cast copper silicon alloy body
  • Shutoff Valves: Threaded Quarter Turn Ball Valves

Pressure - Temperature

  • Max. Working Pressure: 175 psi (12.1 bar)
  • Hydrostatic Test Pressure: 350 psi (24.1 bar)
  • Temperature Range: 32°F to 140°F (0°C to 60°C)

Materials

  • Valve Body: Lead Free* cast copper silicon alloy
  • Elastomers: Silicone
  • Springs: Stainless steel
  • Seat: Noryl®
  • Seat Disc: Silicone Rubber
  • Diaphragm-RV: Rubber/Fabric
  • Cylinder-RV: Lead Free* Cast Copper Silicon Alloy

Certificates & Approvals

  • ANSI/AWWA Conformance (C511)
  • Approved by the Foundation for Cross-Connection Control and Hydraulic Research at the University of Southern California
  • ASSE 1013
  • CSA B64.4
  • NSF Certified to NSF/ANSI 61-G

FAQs

What is the primary use of this backflow preventer?

It is primarily used in potable drinking water systems to protect against cross-connection contamination from high-hazard (toxic) fluids due to backpressure and backsiphonage, commonly found in industrial, hospital, or irrigation applications.

Does this assembly include a flood detection sensor?

Yes, it includes a flood sensor with SentryPlus Alert technology to detect excessive water discharges from the relief valve.

How is the flood sensor activated for alerts?

An add-on connection kit is required to activate the flood sensor. Without the kit, the sensor is passive. Compatible kits support BMS, cellular communication, or the Sensor Control Monitor for BAS/Wi-Fi integration.

What materials are used in the construction of the valve body?

The mainline valve body and caps, including the relief valve body and cover, are constructed from Lead Free* cast copper silicon alloy.

What is the maximum operating pressure and temperature range?

This backflow preventer is rated for a maximum working pressure of 175 psi (12.1 bar) and a water temperature range from 32°F to 140°F (0°C to 60°C).

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