1 1/4 LF860U-QT RP
Item Number: 0122972Brand - Febco
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- Size: 1 1/4 inch
- Weight: 22.2 lb
- Body Material: Lead Free* Cast Copper Silicon Alloy
- Maximum Working Pressure: 175 psi
- Temperature Range: 32°F to 140°F
- Shutoff Valves: Quarter Turn with Union Connections
- Flood Sensor: Integrated for discharge detection
- Approvals: ASSE 1013, CSA B64.4, NSF 61-G
- Serviceable: Inline without special tools
Description
Description
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Help Me Connect
Connecting the LF860U-QT RP Backflow Preventer
- This 1 1/4 inch backflow preventer assembly features threaded quarter-turn ball valves with union connections.
- The end connections are designed to be installed with 1 1/4 inch male NPT (National Pipe Taper) threaded fittings, conforming to ANSI/ASME B1.20.1 standards.
- The union connections allow for easier installation and removal of the assembly for maintenance or repair.

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Additional Details
The FEBCO Series LF860 Small Reduced Pressure Zone backflow preventer assembly is designed to prevent the reverse flow of high hazard (toxic) fluids from entering potable water supplies due to backsiphonage or backpressure.
This assembly is used in critical applications such as industrial plants, hospitals, morgues, mortuaries, chemical plants, irrigation systems, boiler feed, and general water lines where maximum protection is required.
Features
- Provides potable water protection against cross-connection contamination.
- Inline serviceable assembly requires no special tools for maintenance.
- Includes a flood detection sensor on the relief valve to detect excessive water discharges.
- Flood alerts can be activated with an add-on sensor connection kit, compatible with BMS and cellular communication.
- Constructed with a lead-free* cast copper silicon alloy body.
- Features threaded quarter-turn ball valves with union connections.
- Includes top-mounted test cocks, spring-loaded check valves, and a pressure differential relief valve.
An add-on connection kit is required to activate the flood sensor's communication features; without it, the sensor is passive. It is critical to comply with all installation, operation, and maintenance instructions, codes, and regulations for this product.
Specifications
Performance
- 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
- Valve Body: Lead Free* Cast Copper Silicon Alloy
- Elastomers: Silicone
- Springs: Stainless Steel
- Seat: Noryl®
- Seat Disc: Silicone Rubber
- Gasket Ring: Silicone Rubber
- Identification Plate: Brass
Connections
- End Connections: 1 1/4 inch Female NPT ANSI/ASME B1.20.1 Threaded
- Shutoff Valves: Quarter Turn Ball Valves with Union Connections
- Test Cocks: Included
Certificates & Approvals
- ANSI/AWWA Conformance: C511
- Approved by: Foundation for Cross-Connection Control and Hydraulic Research at USC
- ASSE: 1013
- CSA: B64.4
- NSF: 61-G
FAQs
What is the primary purpose of the FEBCO LF860U-QT RP backflow preventer?
What does "Lead Free" mean for this product?
What type of connections does this 1 1/4 inch backflow preventer have?
What is the function of the flood sensor on the relief valve?
What are the maximum operating pressure and temperature limits for this device?
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