The FEBCO Series LF860U 3/4 inch Lead Free Reduced Pressure Zone Backflow Preventer Assembly protects potable water from high hazard contaminants. Designed for industrial plants, hospitals, irrigation systems, and boiler feed lines, it prevents reverse flow due to backsiphonage and backpressure. This unit features a lead-free bronze body, quarter-turn union ball valves, and an integrated flood sensor on the relief valve for early discharge detection. It operates up to 175 psi and withstands temperatures from 32°F to 140°F, meeting ASSE 1013, CSA B64.4, and NSF/ANSI 61-G standards.
Help Me Connect
Connections
This assembly features threaded quarter turn ball valves with union connections, simplifying installation and removal.
The end connections are designed to include NPT (National Pipe Taper) ANSI/ASME B1.20.1, ensuring compatibility with standard threaded piping systems.
The FEBCO Series LF860U 3/4 inch Lead Free Reduced Pressure Zone Backflow Preventer Assembly is designed to prevent the reverse flow of high hazard (toxic) fluids into the potable water supply. It provides protection against backsiphonage and backpressure in accordance with national plumbing codes and water authority requirements.
This assembly is ideal for water services in industrial plants, hospitals, morgues, mortuaries, chemical plants, irrigation systems, boiler feed, and other installations requiring maximum protection.
Construction & Features
Features a lead free bronze body for health-hazard applications.
Includes threaded quarter turn ball valves with union connections and top-mounted test cocks.
Equipped with spring-loaded check valves and a pressure differential relief valve.
Designed as an inline serviceable assembly, requiring no special tools for maintenance.
Integrated sensor on the relief valve for flood detection, capable of activating flood alerts with an add-on connection kit compatible with BMS and cellular communication.
Provides potable water protection against cross-connection contamination.
Specifications
Size: 3/4 inch
Body Material: Lead Free Cast Copper Silicon Alloy (Bronze)
Valve Type: Reduced Pressure Zone (RPZ)
Connection Type: Threaded NPT with Union Ball Valves
Shutoff Valves: Quarter Turn Ball Valves
Flood Sensor: Integrated on relief valve
Pressure & Temperature
Maximum 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
Elastomers: Silicone
Springs: Stainless Steel
Seat: Noryl®
Seat Disc: Silicone Rubber
Diaphragm: Rubber/Fabric
Certificates & Approvals
ANSI/AWWA Conformance: C511
Approved by: Foundation for Cross-Connection Control and Hydraulic Research at the University of Southern California
ASSE Standard: 1013
CSA Standard: B64.4
NSF Certified: NSF/ANSI 61-G
FAQs
What is the primary function of the FEBCO LF860U backflow preventer?
Its primary function is to prevent the reverse flow of high hazard (toxic) fluids from contaminating the potable drinking water supply, protecting against both backsiphonage and backpressure conditions.
What materials are used in the construction of this assembly?
The body is constructed from lead-free cast copper silicon alloy (bronze). It also uses silicone for elastomers, stainless steel for springs, and Noryl® for seats.
What is the maximum operating pressure and temperature range for this backflow preventer?
This assembly has a maximum working pressure of 175 psi (12.1 bar) and operates efficiently within a temperature range of 32°F to 140°F (0°C to 60°C).
Does this model include a flood detection feature?
Yes, the FEBCO LF860U includes an integrated flood sensor on the relief valve, designed to detect excessive water discharges. An add-on connection kit can activate flood alerts.
What type of connections does this backflow preventer use?
This assembly features threaded NPT (National Pipe Taper) end connections with union ball valves. The union connections facilitate easier installation and removal for maintenance.
