1 1/2 LF009M2-QTW/PRS-FS

Item Number: 88004120
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$2,253.59
Special Order
When Will it Ship: Contact for Lead Time
Estimated transit time: 2 to 5 Business Days

Brand - Watts
  • Assembly Size: 1 1/2 inch
  • Weight: 18.4 lb
  • Body Material: Lead Free Cast Copper Silicon Alloy
  • Connections: NPT with Viega ProPress Adaptors
  • Shutoffs: Quarter-Turn Ball Valves with Lever Handles
  • Flood Sensor with SentryPlus Alert Technology
  • Maximum Operating Pressure: 175 PSI
  • Temperature Range: 33°F - 180°F
  • Easy Maintenance: Single Access Cover and Modular Check Design

Description

This 1 1/2 inch Watts LF009 Series Reduced Pressure Zone Backflow Preventer Assembly provides crucial protection for potable water supplies against backsiphonage and backpressure. Constructed from lead-free cast copper silicon alloy, it ensures compliance with national plumbing codes. Key features include NPT connections with Viega ProPress adaptors, quarter-turn ball valve shutoffs with lever handles, and an integrated flood sensor with SentryPlus Alert technology. The compact modular design allows for easy in-line maintenance. It operates up to 175 PSI and handles water temperatures from 33°F to 180°F, offering reliable performance for various demanding applications.

Help Me Connect

This Watts LF009 Reduced Pressure Zone Backflow Preventer Assembly features versatile end connections for various plumbing setups.

  • The assembly includes NPT inlet and outlet connections, which are further equipped with Viega ProPress adaptors for efficient and reliable installation into compatible Viega ProPress systems.
  • The integrated flood sensor can be activated with an add-on sensor connection kit. This kit enables communication with Building Management Systems (BMS), cellular networks, or the Nexa platform via Wi-Fi/RS-485 Modbus for remote flood alerts.
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Additional Details

This 1 1/2 inch lead free copper silicon alloy reduced pressure zone backflow preventer assembly is designed to prevent the flow of polluted water from entering the potable water supply due to backsiphonage or backpressure. Its compact modular design and single access cover facilitate easy in-line maintenance and repair.

Primary Features

  • Equipped with a flood sensor with SentryPlus Alert technology to detect continuous discharge from the relief valve.
  • Includes NPT inlet and outlet connections with Viega ProPress adaptors for versatile installation.
  • Features quarter-turn full port resilient seated ball valve shutoffs with lever handles.
  • Constructed with a lead free cast copper silicon alloy body for durability and compliance.
  • Designed with two in-line independent check valves, captured springs, and replaceable check seats.
  • An internal relief valve is included for reduced installation clearances.
  • Provides single access cover and modular check construction for simplified maintenance.

An add-on connection kit is required to activate the flood sensor. Without the connection kit, the sensor is a passive component with no communication. Watts is not responsible for flood alert failures due to connectivity issues, power outages, or improper installation. Always read all installation instructions and inquire with local governing authorities for installation requirements.

Specifications

  • Assembly Size: 1 1/2 inch
  • Body Material: Lead Free Cast Copper Silicon Alloy
  • Connection Type: NPT with Viega ProPress Adaptors
  • Shutoff Valves: Quarter-Turn Full Port Resilient Seated Ball Valves
  • Relief Valve: Internal
  • Disc Material: Silicone Rubber
  • Check Seats: Replaceable Polymer
  • Cover Bolts: Stainless Steel
  • Maximum Supply Pressure: 175 PSI (12.1 bar)
  • Water Temperature Range: 33°F - 180°F (0.5° - 82°C)

Certificates & Approvals

  • USC
  • ASSE No. 1013
  • AWWA C511
  • CSA B64.4
  • IAPMO File No. 1563
  • NSF Certified to NSF/ANSI/CAN 61-G

Dimensions (Approximate)

  • Length (A): 17 7/8 inches (454 mm)
  • Height (B): 6 3/4 inches (169 mm)
  • Width (C): 3 1/2 inches (89 mm)
  • Depth (D): 3 1/4 inches (83 mm)
  • Centerline to End (L): 11 1/8 inches (283 mm)
  • Centerline to Bottom (M): 4 7/8 inches (124 mm)
  • Centerline to Top (N): 4 inches (102 mm)
  • Weight: 16 pounds (7 kg)

FAQs

What is the primary function of the Watts LF009 backflow preventer?

Its primary function is to protect potable water supplies by preventing polluted water from flowing back into the system due to backsiphonage or backpressure, in accordance with national plumbing codes.

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

The body of this 1 1/2 inch backflow preventer is constructed from lead-free cast copper silicon alloy, ensuring compliance with lead-free installation requirements.

How does the flood sensor feature work and what is required to activate it?

The integrated flood sensor with SentryPlus Alert technology detects continuous water discharge from the relief valve. To activate its alert capabilities, an add-on sensor connection kit is required, which can integrate with BMS, cellular, or Wi-Fi communication platforms.

What type of connections does this assembly have?

This assembly features NPT (National Pipe Taper) inlet and outlet connections, which are pre-fitted with Viega ProPress adaptors for quick and reliable installation with compatible piping systems.

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

This 1 1/2 inch LF009 backflow preventer can handle a maximum supply pressure of 175 PSI (12.1 bar) and water temperatures ranging from 33°F to 180°F (0.5°C to 82°C).

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