2.5 LF007-DNRS-IOT

Item Number: 88003379
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$7,507.31
Special Order
When Will it Ship: Contact for Lead Time
Estimated transit time: 2 to 5 Business Days

Brand - Watts
  • Size: 2 1/2 inch
  • Body Material: Lead Free Cast Iron
  • Coating: ArmorTek Epoxy System
  • Valve Type: Double Check Valve Assembly
  • Shutoff Valves: Domestic Non-Rising Stem (NRS)
  • Integrated pressure-sensing test cocks (IoT)
  • Maximum Operating Pressure: 175 PSI
  • Replaceable seats and seat discs

Description

The Watts 2 1/2 inch LF007-DNRS-IOT is a Lead Free Double Check Valve Backflow Preventer Assembly designed to protect potable water supplies from pollution caused by backflow. Featuring a durable Lead Free cast iron body with ArmorTek advanced epoxy coating for corrosion resistance, this assembly includes integrated pressure-sensing test cocks (IoT) for performance monitoring. It incorporates domestic non-rising stem resilient seated gate valves and replaceable check modules for easy maintenance. With a compact design and single top-entry cover, servicing is simple without special tools. Approved to ASSE 1015 and AWWA C510, it's suitable for continuous pressure piping applications. Item number 88003379.

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Connections & Installation

  • This assembly is installed at cross-connections to prevent backflow into the potable water supply.
  • Only use at cross-connections identified by local inspection authorities as non-health hazard.
  • An add-on monitoring connection kit (BMS/BAS) is required to activate the pressure sensors and transmit data. The kit communicates over wired serial (RS-485) interface and is compatible with most Building Management and Building Automation Systems.
  • Horizontal and vertical "flow up" installation is approved on all sizes.
  • Inquire with governing authorities for local installation requirements regarding vertical orientation, testing frequency, and other installation needs.
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Additional Details

This 2 1/2 inch Lead Free Double Check Valve Backflow Preventer Assembly is designed to prevent the backflow of polluted water into the potable water supply due to backsiphonage or backpressure. Its compact modular design facilitates easy maintenance with a single access cover for in-line repairs. It is ideal for protection in continuous pressure piping applications and cross-connections identified as non-health hazards.

Smart & Connected Technology

  • Features integrated pressure-sensing test cocks (Model IOT) at No. 2, No. 3, and No. 4 locations to measure pressure fluctuations.
  • Activated with an add-on monitoring connection kit (BMS/BAS only) to collect, convert, and transmit data values for use in a building management system.
  • Enables monitoring and assessment of backflow assembly performance between code testing, helping to drive scheduling of maintenance and repair.
  • An add-on monitoring connection kit is required to collect data from the pressure sensors. Without the connection kit, the sensors are passive components that do not communicate with any other device. Use of integrated pressure sensors and monitoring connection kit does not replace the need to comply with all required instructions, codes, and regulations related to installation, operation, and maintenance of the backflow preventer.

Construction & Features

  • Lead Free cast iron body with ArmorTek® coating technology.
  • ArmorTek is a patented three-part advanced epoxy system engineered to reduce microbial-induced corrosion (MIC) and protect exposed metal substrate.
  • Includes domestic non-rising stem (NRS) resilient seated gate valves and top-mounted test cocks.
  • Consists of two in-line independent positive seating check modules with captured springs and replaceable check discs and seats.
  • Modular, compact design for easier maintenance and assembly by retaining the spring load.
  • No special tools required for servicing, providing low pressure drop.
  • Access to all internal components through a single, top-entry cover with stainless steel bolts.

Specifications

  • Nominal Size: 2 1/2 inch
  • Body Material: Lead Free cast iron
  • Coating: ArmorTek powder coating
  • Valve Type: Double Check Valve Assembly
  • Shutoff Valves: Domestic Non-Rising Stem (NRS) resilient seated gate valves
  • Check Module: Captured spring and rubber seat disc
  • Access Cover Bolts: Stainless steel
  • Maximum Working Pressure: 175 psi (12.1 bar)
  • Temperature Range (Continuous): 33°F - 110°F (0.5°C - 43°C)
  • Temperature Range (Intermittent): 140°F (60°C)

Certificates & Approvals

  • ASSE Standard 1015
  • AWWA Standard C510
  • IAPMO PS31
  • CSA B64.5
  • UL Classified with OSY gate valves (horizontal only)
  • Approved by the Foundation for Cross-Connection Control and Hydraulic Research at the University of Southern California
  • Horizontal and vertical "flow up" approval on all sizes
  • NSF/ANSI 372 Certified (Lead Free*)

FAQs

What is the primary purpose of this backflow preventer?

The Watts 2 1/2 inch LF007-DNRS-IOT Double Check Valve Assembly is designed to prevent the backflow of polluted water into the potable water supply, specifically at cross-connections identified as non-health hazards.

How does the integrated pressure-sensing technology (IoT) work?

The assembly features pressure sensors integrated at test cocks No. 2, No. 3, and No. 4. When activated by an add-on monitoring connection kit, these sensors measure pressure fluctuations and can transmit data to a building management system.

What is ArmorTek coating and why is it important?

ArmorTek is a patented three-part advanced epoxy coating system applied to the Lead Free cast iron body. It is engineered to reduce microbial-induced corrosion (MIC) and protect exposed metal substrate from corrosion.

Are the internal components of this backflow preventer serviceable?

Yes, the modular design allows for easy maintenance. It features replaceable seats and seat discs, and all internal components can be accessed through a single, top-entry cover without requiring special tools.

What are the key certifications and approvals for this assembly?

This assembly is approved to ASSE Standard 1015, AWWA Standard C510, IAPMO PS31, and CSA B64.5. It is also NSF/ANSI 372 Certified for Lead Free compliance.

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