10 909RPDA-LF-GPM-FS

Item Number: 88009389
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$53,154.76
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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: 1445.0 lb
  • Type: Reduced Pressure Detector Assembly (RPDA)
  • Body Material: Fused epoxy coated cast iron
  • Coating: ArmorTek® advanced epoxy system
  • Meter: Gallons Per Minute (GPM)
  • Flood Sensor: SentryPlus Alert® technology included
  • Maximum Working Pressure: 175 psi
  • Approvals: UL Classified, FM Approved, AWWA C511-92, CSA B64

Description

The Watts 10 inch Series 909RPDA Reduced Pressure Detector Assembly is a backflow preventer for health hazard applications, designed to prevent the reverse flow of fire protection system substances into potable water. It features an epoxy coated cast iron body with ArmorTek® technology for corrosion resistance and includes a GPM meter to detect leaks and unauthorized water usage. An integrated SentryPlus Alert® flood sensor provides notification of relief valve discharges when paired with an add-on connection kit. This assembly offers a compact design, maximum flow at low pressure drop, and is UL Classified and FM Approved. Item number 88009389.

Help Me Connect

Flood Sensor Connectivity

  • The integrated flood sensor requires an add-on sensor connection kit (sold separately) to activate its alert features.
  • Connection kit options include BMS (Building Management System), cellular communication, or the Sensor Control Monitor.
  • The Sensor Control Monitor enables integration with BAS (Building Automation System) via RS-485 Modbus or the Nexa® platform via Wi-Fi.
  • The flood sensor detects excessive water discharges from the relief valve, providing early notification of potential flooding events.
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Additional Details

The Watts Series 909RPDA Reduced Pressure Detector Assembly is a 10 inch backflow preventer designed for health hazard applications to prevent the reverse flow of fire protection system substances into the potable water supply. This assembly helps safeguard against contaminants like glycerin wetting agents, stagnant water, and non-potable water from backsiphonage or backpressure.

This model is furnished without shutoff valves and includes a GPM (gallons per minute) meter to detect underground leaks and unauthorized water use.

Key Features

  • Features a flood sensor with SentryPlus Alert® technology to detect excessive water discharges from the relief valve.
  • ArmorTek® coating technology resists corrosion of internals and provides microbial-induced corrosion (MIC) protection.
  • Modular check design concept facilitates maintenance and assembly access.
  • Equipped with a GPM (gallons per minute) meter for leak and unauthorized water use detection.
  • Offers maximum flow at low pressure drop.
  • Designed to be compact for economy while maintaining performance.
  • Air-in/Water-out relief valve design provides maximum capacity during emergency conditions.
  • No special tools required for maintenance.

Construction & Materials

  • Body: Fused epoxy coated cast iron.
  • Coating: ArmorTek® patented three-part advanced epoxy system applied to internal and external surfaces.
  • Seats: Replaceable stainless steel.
  • Discs: Rubber.
  • Trim: Stainless steel.
  • Test Cocks: Bronze.

Flood Sensor Technology

  • The integral flood sensor relays a signal to facility personnel for corrective action, limiting potential flooding and damage.
  • Flood alerts are activated with an add-on sensor connection kit (sold separately).
  • Compatible with BMS and cellular network communication, and integrates with the Sensor Control Monitor for alerts via RS-485 Modbus or Nexa® platform via Wi-Fi.

An add-on connection kit (sold separately) is required to activate the flood sensor. Without this kit, the sensor is a passive component with no communication. The use of the flood sensor does not replace the need to comply with all required instructions, codes, and regulations related to installation, operation, and maintenance of this product, including the need to provide proper drainage in the event of a discharge.

Specifications

General

  • Size: 10 inch
  • Model: 909RPDA-LF-GPM-FS
  • Assembly Type: Reduced Pressure Detector Assembly
  • Meter Type: Gallons Per Minute (GPM) Meter
  • Shutoff Valves: Less Shutoff Valves (LF)
  • Flood Sensor: Included, SentryPlus Alert® Technology

Materials

  • Body Material: Cast iron
  • Coating: ArmorTek® Patented 3-Part Advanced Epoxy System
  • Seat Material: Stainless steel (Replaceable)
  • Disc Material: Rubber
  • Trim Material: Stainless steel
  • Test Cock Material: Bronze

Performance

  • Temperature Range: 33°F – 140°F (0.5°C – 60°C) continuous
  • Maximum Working Pressure: 175 psi (12.1 bar)
  • Low Pressure Drop: Maximum flow

Certificates & Approvals

  • AWWA: C511-92
  • CSA: CSA B64
  • USC: Manual for Cross-connection Control, 8th Edition
  • UL: Classified
  • FM: Approved

Dimensions & Weight

  • Weight: 2230 lbs (1012 kg)

FAQs

What is the primary function of the Watts 909RPDA Reduced Pressure Detector Assembly?

Its primary function is to prevent the reverse flow of fire protection system substances, such as glycerin wetting agents and non-potable water, from contaminating the potable water supply in health hazard applications.

Does this backflow preventer come with shutoff valves?

No, this specific model (909RPDA-LF-GPM-FS) is designated "LF" which means it is furnished without shutoff valves.

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

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

What is ArmorTek® coating and why is it used?

ArmorTek® is a patented three-part advanced epoxy coating system applied to the cast iron body's internal and external surfaces. It is designed to reduce microbial-induced corrosion (MIC) and protect exposed metal substrates, extending the product's lifespan.

What is the purpose of the GPM meter included with this assembly?

The GPM (gallons per minute) meter is included to detect underground leaks and unauthorized water use within the system, helping to conserve water and identify potential issues.

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