1 1/2 009M2-QT-FS

Item Number: 88004034
1 1
$1,685.10
Limited Stock (1)
Estimated transit time: 2 to 5 Business Days Eligible for Express Shipping

Brand - Watts
  • Product Type: Reduced Pressure Zone Assembly
  • Weight: 17.3 lb
  • Nominal Size: 1 1/2 inch
  • Body Material: Bronze
  • Connections: NPT Inlet and Outlet
  • Shutoff Valves: Quarter Turn Ball
  • Flood Sensor: SentryPlus Alert® Technology
  • Max Pressure: 175 PSI
  • Water Temperature: 33°F – 180°F

Description

This Watts Series 009 1 1/2 inch Reduced Pressure Zone (RPZ) Assembly Backflow Preventer is designed to protect potable water supplies from pollution due to backsiphonage and backpressure. It features durable bronze body construction, 1 1/2 inch NPT connections, and quarter-turn ball valve shutoffs. A key feature is the integrated SentryPlus Alert® flood sensor, which detects excessive relief valve discharges and can provide alerts when paired with an add-on connection kit. The compact, modular design allows for easy maintenance with a single access cover and replaceable check seats. It is suitable for continuous pressure piping applications up to 175 PSI and temperatures from 33°F to 180°F.

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Connections

  • This Watts Series 009 backflow preventer is equipped with 1 1/2 inch NPT inlet and outlet connections.
  • Ensure compatibility with existing plumbing that has 1 1/2 inch male NPT threads.

Flood Sensor Activation

  • The integrated SentryPlus Alert® flood sensor requires an add-on connection kit for activation and communication.
  • Without a connection kit, the sensor operates as a passive component with no external communication.
  • Connection kit options include systems for BMS (Building Management Systems), cellular communication, or the Sensor Control Monitor for integration with BAS via RS-485 Modbus or the Nexa® platform via Wi-Fi.
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Additional Details

This Watts Series 009 Reduced Pressure Zone Assembly Backflow Preventer in 1 1/2 inch prevents polluted water from entering potable water supplies due to backsiphonage or backpressure. It is suitable for continuous pressure piping applications and at cross-connections identified as health hazards.

This assembly includes a flood sensor with SentryPlus Alert® technology to detect excessive water discharges from the relief valve, providing notification for potential flooding events when paired with an add-on connection kit.

WARNING: It is illegal to use this product in any plumbing system providing water for human consumption, such as drinking or dishwashing, in the United States. Consult your local water authority, building, and plumbing codes before installing.

Design and Construction

  • Features a compact modular design for easy in-line maintenance.
  • Consists of a bronze body, NPT end connections, and quarter-turn ball valve shutoffs with tee handles.
  • Includes two in-line independent check valves, captured springs, and replaceable check seats.
  • An internal relief valve is designed for reduced installation clearances.
  • Top entry to all internals for immediate accessibility.
  • Large body passages provide low pressure drop.
  • No special tools required for servicing.

Flood Sensor Technology

  • SentryPlus Alert® technology detects continuous discharge from the relief valve.
  • Requires an add-on connection kit to activate the sensor for alerts (e.g., BMS, cellular, or Sensor Control Monitor with RS-485 Modbus/Nexa® Wi-Fi integration).
  • The flood sensor is a passive component without a connection kit.

Maintenance Features

  • Single access cover and modular check construction for ease of maintenance.
  • Replaceable seats for economical repair.
  • Captured springs for safe maintenance.

Specifications

  • Nominal Size: 1 1/2 inch
  • Product Type: Reduced Pressure Zone (RPZ) Assembly
  • Body Material: Bronze
  • End Connections: NPT
  • Shutoff Valves: Quarter Turn Ball Valves
  • Handles: Tee Handles
  • Sensor Technology: SentryPlus Alert® Flood Sensor
  • Check Valves: Two In-Line Independent Check Valves
  • Springs: Captured Springs
  • Seats: Replaceable Check Seats, Removable Relief Valve Seats
  • Test Cocks: Four Resilient Seated
  • Relief Valve: Internal Pressure Differential
  • Cover Bolts: Stainless Steel
  • Disc Material: Silicone Rubber (first and second check, relief valve)
  • Check Seats Material: Replaceable Polymer
  • Maximum Supply Pressure: 175 PSI (12.1 bar)
  • Water Temperature Range: 33°F – 180°F (0.5°C – 75°C)

Certificates & Approvals

  • USC
  • ASSE No. 1013
  • AWWA C511-92
  • CSA B64.4
  • IAPMO File No. 1563
  • Approved by the Foundation for Cross-Connection Control and Hydraulic Research at the University of Southern California
  • UL Classified (for 3/4" - 2" LF models only, except 009M3LF)

FAQs

What is the primary use of this backflow preventer?

This Watts Series 009 Reduced Pressure Zone Assembly is designed to prevent polluted water from entering potable water supplies due to backsiphonage and backpressure, in accordance with national plumbing codes.

What are the main connections on this 1 1/2 inch model?

This 1 1/2 inch backflow preventer comes standard with NPT (National Pipe Taper) inlet and outlet connections.

How does the SentryPlus Alert® flood sensor work?

The SentryPlus Alert® flood sensor detects excessive water discharges from the relief valve. To activate its alert capabilities and communication features, an add-on connection kit must be purchased separately.

What is the maximum operating pressure and temperature?

This assembly is suitable for supply pressures up to 175 PSI (12.1 bar) and water temperatures ranging from 33°F to 180°F (0.5°C to 75°C).

What materials are used in the construction of this backflow preventer?

The body is constructed from durable bronze, with silicone rubber disc material in the check and relief valves, and replaceable polymer check seats. Stainless steel bolts secure the access cover.

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