10 LF909M1-DNRS-FS

Item Number: 88009402
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$67,611.21
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When Will it Ship: Contact for Lead Time
Estimated transit time: 2 to 5 Business Days

Brand - Watts
  • Size: 10 inch
  • Weight: 2160.0 lb
  • Body Material: Epoxy Coated Cast Iron
  • Coating: ArmorTek® 3-Part Advanced Epoxy
  • Shutoff Valves: Domestic Non-Rising Stem, Resilient Seated
  • Relief Valve Design: Air-in/water-out for high capacity discharge
  • Flood Sensor: SentryPlus Alert® for excessive discharge detection
  • Maximum Working Pressure: 175 PSI
  • Lead Free* Construction

Description

This 10 inch Lead Free Reduced Pressure Zone Backflow Preventer Assembly by Watts provides cross-connection control to prevent polluted water from entering potable water supplies. Designed for continuous pressure piping and health hazard cross-connections, it features a durable epoxy coated cast iron body with ArmorTek® coating for corrosion resistance. It includes domestic non-rising stem resilient seated gate valves, captured spring checks, and a field reversible relief valve with an air-in/water-out design. A built-in flood sensor with SentryPlus Alert® technology detects excessive discharge, with optional connection kits for remote alerts. Maximum working pressure is 175 PSI.

Help Me Connect

Flood Sensor Connectivity

This backflow preventer assembly includes a flood sensor with SentryPlus Alert® technology. To activate its full functionality and enable alerts for excessive water discharges, an add-on connection kit is required. Without this kit, the sensor operates as a passive component with no external communication. Compatible connection kit options include those for BMS, cellular communication, and the Sensor Control Monitor, which integrates with Building Automation Systems (BAS) via RS-485 Modbus or the Nexa® platform through Wi-Fi.

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Additional Details

This 10 inch lead free reduced pressure zone backflow preventer assembly is designed to protect potable water supplies from pollution caused by backsiphonage or backpressure. It is ideal for use in continuous pressure piping applications and at cross-connections identified as health hazards.

Features

  • Lead Free* construction for compliance with installation requirements.
  • Patented ArmorTek® 3-part advanced epoxy coating system resists microbial-induced corrosion (MIC) and protects exposed metal surfaces.
  • Includes a flood sensor with SentryPlus Alert® technology to detect excessive water discharges from the relief valve.
  • Sensor functionality can be activated with an add-on connection kit to relay alerts via BMS, cellular communication, or the Nexa® platform through Wi-Fi.
  • Unique patented air-in/water-out relief valve design provides high capacity discharge performance during emergency conditions.
  • Features domestic non-rising stem resilient seated gate valves.
  • Equipped with captured spring check valves and replaceable seats.
  • Includes top mounted test cocks and a field reversible pressure differential relief valve.
  • Stainless steel internal parts for durability.

*The wetted surface of this product contacted by consumable water contains less than 0.25% of lead by weight.

Specifications

General

  • Size: 10 inch
  • Body Material: Epoxy Coated Cast Iron
  • Coating: ArmorTek® Patented 3-Part Advanced Epoxy Coating System
  • Shutoff Valves: Domestic Non-Rising Stem Resilient Seated Gate Valves
  • Check Valves: Captured Spring Check Valves, Fused Epoxy Coated and Lined
  • Seats: Replaceable Stainless Steel
  • Trim: Cast Iron
  • Relief Valve Body: Cast Iron
  • Test Cocks: Lead Free* Copper Silicon Alloy
  • Temperature Range: 33°F to 110°F (0.5°C to 43°C) continuous, 140°F (60°C) intermittent
  • Maximum Working Pressure: 175 PSI (12.06 Bar)

Certificates & Approvals

  • ASSE 1013
  • AWWA C511-92
  • CSA B64.4
  • FM Approved
  • IAPMO (UPC)
  • NSF (Drinking Water System Components)
  • UL Classified

FAQs

What is the primary purpose of the 10 inch LF909M1-DNRS-FS backflow preventer?

Its primary purpose is to prevent the reverse flow of polluted water into the potable water supply due to backsiphonage or backpressure, ensuring cross-connection control in health hazard applications and continuous pressure piping.

What does "Lead Free" mean for this product?

"Lead Free" indicates that the wetted surface of this product, which comes into contact with consumable water, contains less than 0.25% lead by weight, complying with Lead Free installation requirements.

How does the ArmorTek® coating benefit this backflow preventer?

The ArmorTek® coating is a patented 3-part advanced epoxy system engineered to reduce microbial-induced corrosion (MIC) and protect all exposed metal substrates, enhancing the product's durability and longevity.

Does the flood sensor come ready to send alerts out of the box?

No, the flood sensor is a passive component unless an add-on connection kit is installed. This kit is required to activate the sensor's functionality to relay alerts via BMS, cellular communication, or Wi-Fi to facility personnel.

What type of shutoff valves are included with this assembly?

This assembly includes domestic non-rising stem resilient seated gate valves, which are designed for reliable flow control and shutoff operations.

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