3/4 LF919-QT-S-AG-FS

Item Number: F122677
1 2
$1,774.50
Special Order
When Will it Ship: Contact for Lead Time
Estimated transit time: 2 to 5 Business Days

Brand - Watts
  • Size: 3/4 inch
  • Body Material: Lead-free bronze
  • Connection Type: NPT
  • Flood Sensor: SentryPlus Alert technology
  • Shutoffs: Quarter turn ball valves with tee handles
  • Check Valves: Two poppet style
  • Includes: Bronze strainer and air gap fitting
  • Alerts: BAS via RS-485 Modbus or Nexa by Wi-Fi

Description

This 3/4 inch lead free reduced pressure zone backflow preventer assembly prevents polluted water from entering potable water supplies due to backsiphonage or backpressure. Constructed from lead-free bronze with NPT end connections, it includes a bronze strainer and air gap fitting. A key feature is the integrated flood sensor with SentryPlus Alert technology, which detects relief valve discharges. When connected to an add-on kit, this sensor relays alerts to Building Automation Systems (BAS) via RS-485 Modbus or the Nexa platform through Wi-Fi, signaling potential flooding or maintenance needs. Its compact design features quarter turn ball valves and replaceable check seats.

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Connections & Monitoring Integration

This backflow preventer features NPT end connections for easy installation into your piping system. Its integrated flood sensor with SentryPlus Alert technology is designed to relay alerts for potential flooding events when paired with an add-on connection kit. Compatible connection kit options include those for:

  • Building Management Systems (BMS)
  • Cellular communication
  • Sensor Control Monitor for integration with BAS via RS-485 Modbus or the Nexa platform through Wi-Fi

This integration allows for automatic generation of alerts when maintenance or service is needed, enhancing system monitoring capabilities.

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Additional Details

This 3/4 inch lead free reduced pressure zone backflow preventer assembly is designed to prevent the flow of polluted water from entering the potable water supply due to backsiphonage and backpressure. It includes a flood sensor with SentryPlus Alert technology to detect continuous discharge from the relief valve.

Key Features

  • Lead-free bronze body construction with NPT end connections ensures durability and safe potable water use.
  • Features a flood sensor with SentryPlus Alert technology to detect continuous discharge from the relief valve.
  • Integrates with the Sensor Control Monitor to deliver maintenance alerts to BAS via RS-485 Modbus or the Nexa platform by Wi-Fi connectivity.
  • Includes a bronze strainer and air gap fitting for comprehensive protection.
  • Equipped with quarter turn ball valve shutoffs with tee handles and two poppet style check valves with replaceable check seats.
  • Compact, space-saving design with separate access covers for check valves and relief valve.
  • Top-mounted, screwdriver-slotted test cocks facilitate easy testing in reduced clearance installations.
  • EZ twist relief valve cover with quarter turn locking joint captures spring load during repair for simplified disassembly.
  • Ideal for protection in continuous pressure piping applications and at cross-connections identified as health hazards.

Specifications

  • Size: 3/4 inch
  • Body Material: Lead-free bronze
  • Connections: NPT
  • Shutoffs: Quarter turn ball valves with tee handles
  • Check Valves: Two poppet style
  • Check Seats: Replaceable
  • Additional Components: Bronze strainer, Air gap fitting, Flood sensor with SentryPlus Alert technology
  • Relief Valve Cover: EZ twist with quarter turn locking joint
  • Test Cocks: Top-mounted, screwdriver-slotted

Certificates & Approvals

  • Backflow Technology: SentryPlus Alert

FAQs

What is the primary function of this 3/4 inch backflow preventer?

This 3/4 inch lead free reduced pressure zone backflow preventer assembly is designed to prevent polluted water from entering the potable water supply due to backsiphonage and/or backpressure.

What material is the body of this backflow preventer constructed from?

The body of this backflow preventer assembly is constructed from durable lead-free bronze, ensuring safety for potable water applications.

How does the flood sensor with SentryPlus Alert technology work?

The integrated flood sensor with SentryPlus Alert technology detects continuous discharge from the relief valve. When paired with an add-on connection kit, it relays alerts for potential flooding events.

What type of end connections does this backflow preventer use?

This backflow preventer assembly features NPT (National Pipe Taper) end connections for secure and standard installation into piping systems.

What other components are included with this backflow preventer assembly?

This assembly includes a bronze strainer, an air gap fitting, quarter turn ball valve shutoffs with tee handles, and two poppet style check valves with replaceable check seats.

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