1 1/2 LF850U-QT DC

Item Number: 0122967
1 1
$1,353.76
Special Order
When Will it Ship: Contact for Lead Time
Estimated transit time: 2 to 5 Business Days

Brand - Febco
  • Lead Free* cast copper silicon alloy body construction
  • Weight: 21.8 lb
  • 1 1/2 inch nominal size for diverse applications
  • Maximum Working Pressure: 175 psi (12.1 bar)
  • Temperature Range: 32°F to 140°F (0°C to 60°C)
  • Union end connections with quarter turn ball valve shutoffs
  • Compact modular design for easy in-line repairs and maintenance
  • Replaceable seats and seat discs for extended lifespan
  • Approved by ASSE 1015, CSA B64.5, and NSF/ANSI 61-G

Description

This 1 1/2 inch FEBCO LF850U-QT Double Check Valve Backflow Preventer Assembly is engineered to prevent polluted water from entering potable water supplies due to backsiphonage or backpressure in non-health hazard applications. Constructed from lead-free cast copper silicon alloy, it features a compact modular design with union end connections and quarter-turn ball valve shutoffs, facilitating easy in-line maintenance. It operates up to 175 psi and withstands temperatures from 32°F to 140°F. Key approvals include ASSE 1015 and CSA B64.5, ensuring compliance with plumbing codes. Item number 0122967.

Help Me Connect

This backflow preventer features NPT ANSI/ASME B1.20.1 end connections, suitable for threaded pipe installations. The integral union end connections with quarter turn ball valve shutoffs provide flexibility for installation and isolation for maintenance. It is designed for use in continuous pressure piping applications to protect against backflow in non-health hazard cross-connections.

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Additional Details

This 1 1/2 inch lead free double check valve backflow preventer assembly is designed to prevent the backflow of polluted water from entering into the potable water supply due to backsiphonage and or backpressure in non-health hazard applications.

Construction & Design

  • Features a Lead Free* body construction from cast copper silicon alloy.
  • Compact modular design facilitates easy maintenance with a single access cover for in-line repairs.
  • Equipped with union end connections for flexibility in installation and removal.
  • Includes quarter turn ball valve shutoffs for reliable isolation.

Features

  • Incorporates two in-line independent positive seating check modules.
  • Includes top mounted test cocks for easy testing and maintenance.
  • Designed with captured springs and replaceable check discs and seats for extended service life.
  • Ideal for protection in continuous pressure piping applications and at cross-connections identified as non-health hazards.

Specifications

  • General
  • Product Type: Double Check Valve Backflow Preventer
  • Nominal Size: 1 1/2 inch
  • Brand: FEBCO (A Watts Brand)
  • Series: LF850 Small
  • Configuration: Quarter Turn Shutoff, Union End Connections

Materials

  • Valve Body: Lead Free* cast copper silicon alloy
  • Elastomers: Silicone
  • Springs: Stainless steel
  • Seat: Noryl
  • Poppet: Noryl

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)

Connections

  • End Connections: NPT ANSI/ASME B1.20.1
  • Handles: Lever handles (for sizes 1 1/4" to 2")
  • Test Cocks: Top mounted

Certificates & Approvals

  • ASSE 1015
  • CSA B64.5
  • NSF/ANSI 61-G
  • UPC
  • USC-FCCCHR
  • ANSI/AWWA C510-92

FAQs

What is the primary purpose of the FEBCO LF850U-QT Double Check Valve Assembly?

Its primary purpose is to prevent the backflow of polluted water into the potable water supply, protecting against both backsiphonage and backpressure in non-health hazard applications.

What are the key materials used in this backflow preventer's construction?

The valve body is constructed from Lead Free* cast copper silicon alloy. Internal components include silicone elastomers and stainless steel springs, with Noryl seats and poppets.

What type of connections does this assembly use?

This assembly features NPT ANSI/ASME B1.20.1 end connections, along with union end connections and quarter turn ball valve shutoffs for easy installation and maintenance.

What are the maximum operating pressure and temperature limits for this device?

It has a maximum working pressure of 175 psi (12.1 bar) and operates within a temperature range of 32°F to 140°F (0°C to 60°C).

How does the modular design benefit maintenance?

The compact modular design facilitates easy in-line repairs and maintenance. It features a single access cover and replaceable seats and seat discs, simplifying service procedures.