10 957RPDA-OSY-CFM-FS

Item Number: F111625
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$27,902.22
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When Will it Ship: Contact for Lead Time
Estimated transit time: 2 to 5 Business Days

Brand - Watts
  • Nominal Size: 10 inch
  • Weight: 997.0 lb
  • Housing Material: 304 (Schedule 40) Stainless Steel
  • Maximum Working Pressure: 175 PSI
  • Shutoff Valves: Outside Screw and Yoke (OSY)
  • Flood Sensor: SentryPlus Alert® technology
  • Extremely compact and 70% lighter design
  • Metered bypass detects leaks and unauthorized water use
  • Connection Type: 150 Pound ANSI/AWWA Class D Flanged

Description

The 10 inch Watts 957RPDA-OSY-CFM-FS Reduced Pressure Detector Assembly protects potable water systems from contamination due to back-siphonage and backpressure in health hazard applications. This compact and lightweight unit features a 304 stainless steel housing, OSY shutoff valves, and a metered bypass to detect leaks. It includes SentryPlus Alert® flood sensor technology to monitor relief valve discharge, providing notification for potential flooding. Approved for horizontal installation with 150 Pound ANSI/AWWA Class D Flanged connections, it handles a maximum operating pressure of 175 PSI. Item number F111625.

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Connection and Compatibility

The 10 inch Watts 957RPDA backflow preventer is designed for horizontal installation in potable water systems requiring protection against health hazard contamination from back-siphonage and backpressure. Its 150 Pound ANSI/AWWA Class D Flanged connections ensure secure integration into your pipeline.

Flood Sensor Connectivity

  • The integrated SentryPlus Alert® flood sensor detects excessive water discharges from the relief valve.
  • An add-on connection kit is required to activate the flood sensor's alert feature.
  • Connection kit options include BMS (Building Management System), cellular communication, or the Sensor Control Monitor (for integration with BAS via RS-485 Modbus or Nexa® platform via Wi-Fi).
  • Without a connection kit, the sensor operates as a passive component without communication.
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Additional Details

The 10 inch Watts 957RPDA-OSY-CFM-FS Reduced Pressure Detector Assembly provides essential protection for potable water systems from contamination due to back-siphonage and backpressure in health hazard applications. This backflow preventer is also designed to monitor unauthorized water use from fire protection systems and includes advanced flood detection capabilities.

This assembly is extremely compact and 70% lighter than traditional designs, approved for horizontal installation. It features a robust 304 (Schedule 40) stainless steel housing and sleeve for corrosion resistance, along with groove fittings that allow for integral pipeline adjustment. The unit includes a cubic feet per minute (CFM) meter to detect underground leaks or unauthorized water usage.

Features

  • Extremely compact design, 70% lighter than traditional designs
  • 304 (Schedule 40) stainless steel housing and sleeve for corrosion resistance
  • Groove fittings allow integral pipeline adjustment
  • Patented torsion spring check provides lowest pressure loss and unmatched ease of serviceability
  • Replaceable check disc rubber for simple maintenance
  • Includes grooved butterfly valve shutoffs (OSY)
  • Bottom mounted cast stainless steel relief valve
  • Metered bypass to detect leakage or theft of water from the fire sprinkler system
  • Approved for horizontal installation

Flood Sensor Technology

  • Features a flood sensor with SentryPlus Alert® technology to detect continuous discharge from the relief valve.
  • The sensor is installed on the assembly exterior and does not alter assembly functions or certifications.
  • Relays a signal that triggers notification to facility personnel for corrective action, limiting flooding and costly damage.
  • Flood alert feature is activated with an add-on sensor connection kit, compatible with BMS and cellular network communication.

WARNING: It is illegal to use this product in any plumbing system providing water for human consumption, such as drinking or dishwashing, in the United States. Before installing standard material product, consult your local water authority, building and plumbing codes.

Specifications

  • Product Type: Reduced Pressure Detector Assembly
  • Model Series: 957RPDA
  • Nominal Size: 10 inch
  • Installation: Horizontal
  • Housing & Sleeve Material: 304 (Schedule 40) Stainless Steel
  • Elastomers: EPDM, Silicone, Buna 'N'
  • Relief Valve Material: Noryl, Stainless Steel
  • Check Discs Material: Reversible Silicone on EPDM
  • Test Cocks Material: Lead Free Bronze Body
  • Pins & Fasteners Material: 300 Series Stainless Steel
  • Springs Material: Stainless Steel
  • Shutoff Valves: Outside Screw and Yoke (OSY)
  • Metering: Cubic Feet per Minute (CFM) Metered Bypass
  • Temperature Range: 33°F – 140°F (0.5°C – 60°C)
  • Maximum Working Pressure: 175 PSI (12.1 bar)
  • Connection Type: 150 Pound ANSI/AWWA Class D Flanged
  • Check Valve Design: Patented Torsion Spring
  • Flood Sensor: SentryPlus Alert® Technology

Certificates & Approvals

  • Approved by the Foundation for Cross-Connection Control and Hydraulic Research at USC
  • AWWA C511-97
  • UL Listed
  • SP Approved
  • FM Approved
  • ASSE Approved
  • CSA B64.4

FAQs

What is the primary purpose of the Watts 957RPDA-OSY-CFM-FS backflow preventer?

This assembly is designed to protect potable water systems from contamination caused by back-siphonage and backpressure in health hazard applications, and to monitor unauthorized water use from fire protection systems.

What are the key materials used in this backflow preventer's construction?

It features a 304 (Schedule 40) stainless steel housing and sleeve, with elastomers made from EPDM, silicone, and Buna 'N'. The relief valve is Noryl and stainless steel.

How does the SentryPlus Alert® flood sensor function?

The flood sensor detects excessive water discharges from the relief valve. When paired with an add-on connection kit, it relays a signal to facility personnel for corrective action, helping to prevent flooding.

What type of connections are used for installation?

This 10 inch backflow preventer utilizes 150 Pound ANSI/AWWA Class D Flanged connections for secure and integral pipeline adjustment.

What is the maximum operating pressure and temperature range for this unit?

The maximum operating pressure is 175 PSI (12.1 bar), and it can operate within a temperature range of 33°F to 140°F (0.5°C to 60°C).

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