1 LF850-QT-FZ DC

Item Number: T683040
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Regular price $550.06
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Brand - Febco

  • Size: 1 inch
  • Body Material: Lead Free Cast Copper Silicon Alloy
  • Maximum Working Pressure: 175 PSI
  • Temperature Range: 32°F to 140°F
  • Features an integrated freeze sensor
  • Compact modular design for easy maintenance
  • Includes top-mounted test cocks
  • Protects potable water from pollution

Description

The 1 inch FEBCO LF850 Small Lead Free Double Check Valve Assembly (DCVA) with Freeze Sensor protects potable water from pollution in non-health hazard applications. Constructed from lead-free cast copper silicon alloy, it ensures compliance with current installation requirements. This DCVA features a compact, modular design for simplified in-line maintenance. An integrated freeze sensor utilizes SentryPlus Alert® technology to provide crucial temperature monitoring and alerts. With NPT end connections and quarter-turn shutoffs, it is ideal for continuous pressure piping. Item number T683040.

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Connections

  • The assembly features 1 inch Female NPT (National Pipe Taper) end connections conforming to ANSI/ASME B1.20.1 standards for threaded pipe connections.

Freeze Sensor Connectivity

The integrated freeze sensor works with SentryPlus Alert® technology. To activate a monitoring system that provides alerts for low and freezing temperatures, an add-on connection kit (sold separately) is required. This kit enables communication via Wi-Fi networks, building management systems (BMS), or irrigation management systems (IMS) using a switched output relay.

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Additional Details

This 1 inch Lead Free Double Check Valve Backflow Preventer Assembly is designed for non-health hazard applications, protecting the potable water supply from polluted water due to backsiphonage or backpressure. It features a compact modular design for easy in-line maintenance with a single access cover.

The assembly includes a freeze sensor with SentryPlus Alert® technology to monitor temperature and alert facility personnel when freeze conditions could cause equipment damage.

Features

  • Lead Free cast copper silicon alloy body construction to comply with lead-free installation requirements
  • Includes a freeze sensor to monitor temperature and provide alerts for low and freezing conditions
  • Compact modular design facilitates easy in-line maintenance with a single access cover
  • Two in-line independent positive seating check modules
  • Replaceable seats and seat discs
  • Top-mounted test cocks for easy testing
  • NPT end connections (ANSI/ASME B1.20.1)
  • Quarter-turn ball valve shutoffs for reliable operation
  • Available freeze sensor connection kit to activate a monitoring system that triggers alerts for low and freezing temperatures via Wi-Fi, BMS, or irrigation management systems

WARNING: The freeze sensor provides alerts about a possible freeze event but cannot prevent it from occurring. User action is required to prevent freeze conditions from causing product and/or property damage. An add-on connection kit (sold separately) is required to activate the freeze sensor; without it, the sensor is a passive component and does not communicate with any other device.

Specifications

General

  • Product Type: Double Check Valve Assembly
  • Valve Body Material: Lead Free Cast Copper Silicon Alloy
  • Elastomers: Silicone
  • Springs: Stainless Steel
  • Inlet/Outlet Connections: 1 inch Female NPT
  • Shutoff Type: Quarter Turn Ball Valve
  • Check Modules: Two in-line independent, positive seating
  • Test Cocks: Top-mounted
  • Freeze Sensor: Included, SentryPlus Alert® technology

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)

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 this 1 inch Lead Free Double Check Valve Assembly?

This assembly protects the potable water supply from polluted water entering due to backsiphonage or backpressure, specifically for non-health hazard applications.

Is this backflow preventer made with lead-free materials?

Yes, it is constructed with a Lead Free cast copper silicon alloy body, ensuring compliance with lead-free installation requirements.

How does the integrated freeze sensor function?

The freeze sensor uses SentryPlus Alert® technology to monitor ambient temperature and signals facility personnel when temperatures approach or reach freezing, helping to prevent equipment damage. An add-on connection kit (sold separately) is needed to activate full monitoring features.

What type of connections does this valve assembly have?

It features 1 inch Female NPT (National Pipe Taper) end connections, compliant with ANSI/ASME B1.20.1 standards.

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

The maximum working pressure is 175 PSI (12.1 bar), and the operating temperature range is 32°F to 140°F (0°C to 60°C).