2 LF009M2-QT-FS

Item Number: 88004115
1 1
$2,497.62
In Stock (10)
Estimated transit time: 2 to 5 Business Days Eligible for Express Shipping

Brand - Watts
  • Size: 2 inch
  • Weight: 28.3 lb
  • Body Material: Lead Free Copper Silicon Alloy
  • Connections: NPT Inlet and Outlet
  • Shutoff Valves: Quarter Turn Ball Valves
  • Flood Sensor: SentryPlus Alert® Technology
  • Maximum Supply Pressure: 175 PSI
  • Water Temperature Range: 33°F - 180°F
  • Single access cover for easy maintenance

Description

The 2 inch Watts LF009M2-QT-FS Lead Free Reduced Pressure Zone Backflow Preventer Assembly is engineered to protect potable water supplies from contamination by backsiphonage or backpressure, meeting national plumbing codes. This assembly features a durable lead-free copper silicon alloy body with NPT inlet and outlet connections, and includes quarter-turn ball valve shutoffs. It incorporates a SentryPlus Alert® flood sensor to detect continuous relief valve discharge. Designed for ease of maintenance, it has a compact, modular structure with a single access cover and replaceable seats. It is suitable for supply pressures up to 175 PSI and water temperatures from 33°F to 180°F. Item number 88004115.

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Connections

  • This backflow preventer features NPT inlet and outlet connections for standard threaded pipe installations. Ensure your piping system matches this 2-inch NPT sizing.

Flood Sensor Connectivity

The integrated flood sensor with SentryPlus Alert® technology requires an add-on connection kit (sold separately) for activation and communication. Without this kit, the sensor is passive.

  • The connection kit enables communication with Building Management Systems (BMS).
  • It supports cellular communication for remote alerts.
  • The Sensor Control Monitor option allows integration with BAS via RS‑485 Modbus or the Nexa® platform through Wi-Fi.
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Additional Details

This 2 inch Watts LF009M2-QT-FS Lead Free Reduced Pressure Zone Backflow Preventer Assembly is designed to protect potable water supplies by preventing polluted water from entering the system due to backsiphonage or backpressure, in accordance with national plumbing codes and water authority requirements.

Its compact, modular design facilitates easy maintenance with a single access cover for in-line repairs. This assembly features a flood sensor with SentryPlus Alert® technology, providing advanced detection for excessive water discharges from the relief valve.

Key Features

  • Lead Free cast copper silicon alloy body construction. The wetted surface of this product contacted by consumable water contains less than 0.25% of lead by weight.
  • Includes quarter turn full port resilient seated ball valve shutoffs with tee handles for isolation.
  • Integrated SentryPlus Alert® technology flood sensor detects continuous discharge from the relief valve.
  • Designed with two in-line independent check valves, captured springs, and replaceable check seats for reliable performance.
  • Features an internal relief valve for reduced installation clearances and simplified maintenance.
  • Single access cover and modular check construction ensure ease of maintenance and economical repair of replaceable seats.

Flood Sensor Activation

  • An add-on connection kit is required to activate the flood sensor. Without the connection kit, the sensor operates as a passive component with no communication.
  • Connection kit options include compatibility with BMS (Building Management Systems), cellular communication, and the Sensor Control Monitor for integration with BAS via RS‑485 Modbus or the Nexa® platform through Wi-Fi.

Specifications

  • Size: 2 inch
  • Body Material: Lead Free Cast Copper Silicon Alloy
  • Shutoff Valves: Quarter Turn Full Port Resilient Seated Ball Valves
  • Connections: NPT Inlet and Outlet
  • Flood Sensor: SentryPlus Alert® Technology
  • Maximum Supply Pressure: 175 PSI (12.1 bar)
  • Water Temperature Range: 33°F - 180°F (0.5° - 82°C)
  • Check Valves: Two In-line Independent Check Valves
  • Relief Valve: Internal
  • Disc Material: Silicone Rubber (for check valves and relief valve)
  • Check Seat Material: Replaceable Polymer
  • Cover Bolts: Stainless Steel

Certificates & Approvals

  • USC
  • ASSE No. 1013
  • AWWA C511
  • CSA B64.4
  • IAPMO File No. 1563
  • Approved by Foundation for Cross-Connection Control and Hydraulic Research at the University of Southern California
  • USC-FCCCHR

FAQs

What is the primary function of the Watts LF009M2-QT-FS backflow preventer?

Its primary function is to protect potable water supplies from contamination by preventing polluted water from flowing back into the system due to backsiphonage or backpressure. This ensures compliance with national plumbing codes and water authority requirements.

What body material is this backflow preventer made from?

The assembly features a lead-free cast copper silicon alloy body. The wetted surfaces of this product that contact consumable water contain less than 0.25% of lead by weight.

Does this model include a flood sensor?

Yes, this assembly includes a flood sensor with SentryPlus Alert® technology. It is designed to detect excessive water discharges from the relief valve, providing an early warning system for potential flooding.

How is the flood sensor activated for alerts?

An add-on connection kit (sold separately) is required to activate the flood sensor for alerts. This kit enables integration with building management systems (BMS), cellular communication, or the Nexa® platform via Wi-Fi.

What type of connections does the Watts LF009M2-QT-FS have?

This backflow preventer is furnished with NPT (National Pipe Taper) inlet and outlet body connections. These connections are standard for many plumbing installations.

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