3/4 LF009M3-QTW/PRESS-FS

Item Number: 88004117
1 1
$1,126.46
Special Order
When Will it Ship: Contact for Lead Time
Estimated transit time: 2 to 5 Business Days

Brand - Watts
  • Nominal Size: 3/4 inch
  • Weight: 5.4 lb
  • Lead Free* Cast Copper Silicon Alloy Body
  • NPT Inlet & Outlet with Viega ProPress® Adaptors
  • SentryPlus Alert® Flood Sensor Technology
  • Maximum Supply Pressure: 175 PSI
  • Water Temperature Range: 33°F - 180°F
  • Quarter-Turn Full Port Ball Valve Shutoffs
  • Modular Design for Easy Maintenance

Description

This 3/4 inch Watts Series LF009 Lead Free Reduced Pressure Zone Backflow Preventer Assembly safeguards potable water systems from contamination due to backsiphonage and backpressure. Featuring a durable lead free copper silicon alloy body, it includes NPT inlet and outlet connections with Viega ProPress® adaptors and quarter-turn ball valve shutoffs for easy operation. The assembly's modular design and single access cover simplify maintenance. An integrated SentryPlus Alert® flood sensor detects relief valve discharge, with activation available through add-on connection kits for advanced monitoring. Approved to ASSE Std. 1013 and CSA B64.4, it supports pressures up to 175 PSI and temperatures from 33°F to 180°F.

Help Me Connect

This 3/4 inch Watts Series LF009 Reduced Pressure Zone Backflow Preventer is designed for straightforward installation with NPT inlet and outlet connections that include Viega ProPress® adaptors. The assembly connects directly into your potable water line to protect against backsiphonage and backpressure.

Flood Sensor Connectivity

  • The integrated SentryPlus Alert® flood sensor requires an add-on connection kit (sold separately) to activate its alert features.
  • Compatible connection kits enable integration with Building Management Systems (BMS), cellular communication, or the Sensor Control Monitor for advanced monitoring via RS-485 Modbus or the Nexa® platform over Wi-Fi.
  • Without an add-on kit, the sensor is a passive component with no external communication.
View full details

Additional Details

This 3/4 inch lead free copper silicon alloy reduced pressure zone backflow preventer assembly (RPZ) is designed to protect potable water supplies by preventing polluted water from entering the system due to backsiphonage and/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.

Flood Sensor Technology

  • Equipped with a flood sensor with SentryPlus Alert® technology to detect excessive water discharges from the relief valve.
  • Sensor is activated by an add-on connection kit (sold separately) to relay alerts for potential flooding events.
  • Connection kit options include BMS, cellular communication, and the Sensor Control Monitor for integration with BAS via RS-485 Modbus or the Nexa® platform through Wi-Fi.

Construction & Maintenance

  • Features lead free copper silicon alloy body construction.
  • Includes NPT inlet and outlet connections with Viega ProPress® adaptors.
  • Supplied with quarter-turn full port resilient seated ball valve shutoffs with tee handles.
  • Contains two in-line independent check valves, captured springs, and replaceable check seats.
  • Internal relief valve provides reduced installation clearances.
  • Single access cover and modular check construction ensure ease of maintenance.
  • Top entry to all internals for immediate accessibility.
  • Captured springs for safe maintenance.
  • Replaceable seats for economical repair.

It is required to thoroughly read all installation instructions and product safety information before beginning the installation of this product. Inquire with governing authorities for local installation requirements.

Specifications

  • Nominal Size: 3/4 inch
  • Body Material: Lead Free* Cast Copper Silicon Alloy
  • Connection Type: NPT Inlet & Outlet with Viega ProPress® Adaptors
  • Shutoff Valves: Quarter-Turn Full Port Ball Valve
  • Maximum Supply Pressure: 175 PSI (12.1 bar)
  • Water Temperature Range: 33°F - 180°F (0.5° - 82°C)
  • Valve Type: Reduced Pressure Zone (RPZ)
  • Check Valves: Two Independent In-line
  • Relief Valve: Internal
  • Disc Material: Silicone Rubber

Certificates & Approvals

  • USC
  • ASSE Std. 1013
  • AWWA C511
  • CSA B64.4
  • IAPMO File No. 1563
  • NSF Certified to NSF/ANSI/CAN 61-G
  • UL Classified (Series LF009, 3/4"-2" without shutoff valves, except LF009M3LF)

FAQs

What is the primary function of this backflow preventer?

This backflow preventer assembly is designed to protect potable water supplies from contamination by preventing polluted water from flowing back into the system due to backsiphonage or backpressure, in accordance with national plumbing codes and water authority requirements.

What material is the body made from?

The body of this 3/4 inch assembly is constructed from durable lead free cast copper silicon alloy, ensuring compliance with Lead Free* installation requirements.

How does the SentryPlus Alert® flood sensor work?

The integrated SentryPlus Alert® flood sensor detects excessive water discharges from the relief valve. To activate its alert features and enable communication, an add-on connection kit (sold separately) is required.

What type of connections does this assembly have?

This assembly features NPT (National Pipe Taper) inlet and outlet connections, which are equipped with factory-installed Viega ProPress® adaptors for convenient and secure installation.

What are the key maintenance features of this backflow preventer?

It features a single access cover and modular check construction for ease of maintenance, along with top entry to all internals and replaceable seats for economical repair, simplifying servicing.

Related Products

1 2