2.5 LF009-DNRS-FS

Item Number: F792158
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$8,733.08
Special Order
When Will it Ship: Contact for Lead Time
Estimated transit time: 2 to 5 Business Days

Brand - Watts
  • 2 1/2 inch Reduced Pressure Zone Backflow Preventer
  • Cast Iron Body Construction
  • ArmorTek® 3-part Epoxy Coating
  • Domestic Non-Rising Stem Resilient Seated Gate Valves
  • Flood Sensor with SentryPlus Alert Technology
  • Protects against backsiphonage and backpressure
  • Max Supply Pressure: 175 psi
  • Continuous Water Temperature: 33°F - 110°F

Description

This 2 1/2 inch Watts Lead Free Reduced Pressure Zone Backflow Preventer Assembly prevents polluted water from entering potable water supplies due to backsiphonage or backpressure. It features a durable cast iron body with ArmorTek® 3-part epoxy coating for superior corrosion resistance, including protection against microbial-induced corrosion. Equipped with domestic non-rising stem resilient seated gate valves and an integrated flood sensor with SentryPlus Alert technology, it offers enhanced system monitoring. The assembly is suitable for continuous pressure piping applications up to 175 psi and water temperatures from 33°F to 110°F continuous, ensuring reliable performance in health hazard cross-connection protection. Item F792158.

Help Me Connect

Flood Sensor Connectivity and Integration

  • This backflow preventer's integrated flood sensor is designed to detect excessive water discharge from the relief valve.
  • To activate the sensor's alert relay function, an add-on sensor connection kit (not included with this assembly) is required.
  • The connection kit options facilitate communication via Building Management Systems (BMS), cellular communication, or through a Sensor Control Monitor.
  • The Sensor Control Monitor enables integration with larger building automation systems (BAS) using RS-485 Modbus or can connect to the Nexa® platform via Wi-Fi for remote monitoring.
  • Standard NPT body connections are furnished with this model.
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Additional Details

This 2 1/2 inch Watts Lead Free Reduced Pressure Zone Backflow Preventer Assembly is designed to prevent the flow of polluted water from entering into the potable water supply due to backsiphonage and/or backpressure. It is ideal for protection in continuous pressure piping applications and at cross-connections identified as health hazards.

Features

  • Includes a flood sensor with SentryPlus Alert technology to detect continuous discharge from the relief valve.
  • Features an add-on sensor connection kit to extend flood monitoring and relay alerts for potential flooding events.
  • Integrates with the Sensor Control Monitor to deliver maintenance alerts to BAS via RS-485 Modbus or the Nexa platform by Wi-Fi connectivity.
  • Designed with large body passages for a low pressure drop.
  • Internal relief valve provides reduced installation clearances.
  • Top mounted test cocks are screwdriver slotted for ease of use.

Construction

  • Features a cast iron body construction.
  • Incorporates ArmorTek® coating technology, a patented 3-part advanced epoxy coating system, to resist electrochemical corrosion, microbial-induced corrosion (MIC), and exposed metal substrate corrosion.
  • Equipped with domestic non-rising stem resilient seated gate valves.
  • Consists of two in-line independent check valves with captured springs and replaceable check seats.
  • Made with Lead Free* materials.

Flood Sensor Connectivity

  • The flood sensor is activated when paired with an add-on connection kit.
  • Connection kit options include Building Management Systems (BMS), cellular communication, and the Sensor Control Monitor.
  • The Sensor Control Monitor enables integration with BAS via RS-485 Modbus or the Nexa® platform through Wi-Fi.

Specifications

  • Product Type: Reduced Pressure Zone Backflow Preventer Assembly
  • Nominal Size: 2 1/2 inch
  • Body Material: Cast Iron
  • Coating: ArmorTek® 3-part advanced epoxy coating
  • Shutoff Valves: Domestic Non-Rising Stem Resilient Seated Gate Valves
  • Relief Valve: Internal relief valve
  • Check Valves: Two in-line independent check valves
  • Test Cocks: Top mounted, screwdriver slotted
  • Lead Content: Lead Free*

Performance

  • Maximum Supply Pressure: 175 psi (12.1 bar)
  • Continuous Water Temperature: 33°F - 110°F (0.5° - 43°C)
  • Intermittent Water Temperature: 140°F (60°C)

Certificates & Approvals

  • USC
  • ASSE Std. 1013
  • AWWA C511
  • CSA B64.4
  • IAPMO File No. 1563
  • NSF/ANSI/CAN 61-G Certified
  • USC-FCCCHR
  • Approved by the Foundation for Cross-Connection Control and Hydraulic Research at the University of Southern California

FAQs

What is the primary function of this backflow preventer?

This backflow preventer assembly is designed to prevent polluted water from flowing back into the potable water supply. It protects against both backsiphonage and backpressure conditions in continuous pressure piping applications.

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

The body of this 2 1/2 inch backflow preventer is constructed from durable cast iron, featuring ArmorTek® coating technology for enhanced corrosion resistance.

Does this backflow preventer include a flood sensor?

Yes, this assembly includes an integrated flood sensor with SentryPlus Alert technology. It detects continuous discharge from the relief valve, and with an optional add-on connection kit, can relay alerts for potential flooding events.

What are the maximum operating pressure and temperature ratings for this model?

This backflow preventer is suitable for a maximum supply pressure of 175 psi (12.1 bar). It can handle continuous water temperatures from 33°F to 110°F (0.5°C to 43°C), with intermittent temperatures up to 140°F (60°C).

Is this backflow preventer compliant with lead-free regulations?

Yes, this is a Lead Free* Reduced Pressure Zone Backflow Preventer Assembly. It complies with various standards, including USC, ASSE Std. 1013, AWWA C511, and CSA B64.4, ensuring its suitability for potable water systems.

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