6 4000SS-DNRS-FS

Item Number: F0692728
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$15,628.40
Special Order
When Will it Ship: Contact for Lead Time
Estimated transit time: 2 to 5 Business Days

Brand - Ames
  • Product Type: Reduced Pressure Zone Backflow Preventer
  • Weight: 470.0 lb
  • Nominal Size: 6 inch
  • Shutoff Valves: Domestic Non-Rising Stem (NRS)
  • Body Material: 300 Series Stainless Steel
  • Flood Detection: SentryPlus Alert Flood Sensor
  • Maximum Working Pressure: 175 psi
  • Temperature Range: 33°F to 110°F
  • Certifications: ASSE 1013, CSA B64.5, UL Classified, Lead Free*

Description

This 6 inch AMES 4000SS Reduced Pressure Zone Backflow Preventer Assembly with Domestic Non-Rising Stem (NRS) shutoff valves is designed for health hazard cross-connections. It prevents the reverse flow of contaminated water into potable water supplies. Featuring a lightweight 300 Series stainless steel body for corrosion resistance and easy installation, it includes a SentryPlus Alert flood sensor to detect excessive relief valve discharge. The sensor can be activated with an add-on connection kit for real-time alerts. This compact, Lead Free* assembly operates from 33°F to 110°F with a maximum working pressure of 175 psi. Item number F0692728.

Help Me Connect

Flood Sensor Activation

  • An add-on connection kit is required to activate the flood sensor. Without this kit, the flood sensor acts as a passive component with no communication.
  • Connection kit options include BMS, cellular communication, or the Sensor Control Monitor, enabling integration with Building Automation Systems (BAS) via RS-485 Modbus or the Nexa platform through Wi-Fi.

Drainage and Accessories

  • Proper drainage must be provided for discharge events. When installing a drain line, use an air gap.
  • Note that a strainer is sold separately and is not included with this assembly.
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Additional Details

This 6 inch stainless steel reduced pressure zone backflow preventer assembly prevents the reverse flow of contaminated water from entering the potable water supply due to backsiphonage or backpressure. It is ideal for protecting health hazard cross-connections and other contaminants at the service line entrance.

This backflow assembly features a flood sensor with SentryPlus Alert technology to detect excessive water discharges from the relief valve. When paired with an add-on connection kit, the sensor is activated to relay alerts for potential flooding events, triggering notification to facility personnel for corrective action.

Features

  • Lead Free* construction for compliance with installation requirements
  • Stainless steel body provides long-term corrosion resistance and maximum strength
  • Half the weight of competitive designs, reducing installation and shipping costs
  • Short end-to-end dimensions make retrofitting easy
  • Cam-check assembly provides maximum flow at low pressure drop
  • No special tools required for servicing
  • Compact construction allows for smaller enclosures
  • Stainless steel relief valve with a balanced rolling diaphragm to eliminate sliding seals and lower maintenance costs
  • Sensor on relief valve for flood detection
  • Flood alert feature activated with an add-on sensor connection kit, compatible with BMS, cellular network communication, or Sensor Control Monitor for BAS/Nexa integration via RS-485 Modbus/Wi-Fi
  • Domestic non-rising stem (NRS) resilient seated gate valves
  • Top mounted test cocks

Materials

  • Main Valve Body: 300 Series stainless steel
  • Internal Metal Parts: 300 Series stainless steel
  • Check Assembly: Noryl® thermoplastic with stainless steel hinge pins

Installation must comply with all required instructions, codes, and regulations, including proper drainage for discharge. Watts is not responsible for alert failures due to connectivity issues, power outages, or improper installation. Always read installation instructions thoroughly and inquire with local governing authorities for specific requirements.

Specifications

  • Nominal Size: 6 inch
  • Product Type: Reduced Pressure Zone (RPZ) Backflow Preventer
  • Operation: Non-Rising Stem (NRS) Shutoff Valves
  • Body Material: 300 Series Stainless Steel
  • Internal Metal Parts: 300 Series Stainless Steel
  • Check Assembly Material: Noryl® thermoplastic
  • End Connection: Flanged
  • Flood Detection: SentryPlus Alert Flood Sensor
  • Temperature Range: 33°F - 110°F (0.5°C – 43°C)
  • Maximum Working Pressure: 175 psi (12.1 bar)

Certificates & Approvals

  • Lead Free* Compliant (wetted surface < 0.25% lead)
  • AWWA Standard: AWWA C511-92
  • ASSE Standard: ASSE 1013
  • CSA Standard: CSA B64.5
  • UL Classified: Yes

FAQs

What type of contamination does this backflow preventer protect against?

This reduced pressure zone backflow preventer is designed to protect potable water supplies from health-hazard cross-connections, preventing the reverse flow of contaminated non-potable water due to backsiphonage or backpressure.

Is the flood sensor functional right out of the box?

The SentryPlus Alert flood sensor is included, but an add-on connection kit is required to activate its alert features. Without the kit, the sensor is passive and will not communicate discharge events.

What are the connectivity options for the flood sensor alerts?

When activated with a connection kit, the sensor can integrate with Building Management Systems (BMS), cellular networks, or the Sensor Control Monitor for BAS integration via RS-485 Modbus or the Nexa platform through Wi-Fi.

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

This 6 inch backflow preventer has a maximum working pressure of 175 psi (12.1 bar) and operates within a temperature range of 33°F to 110°F (0.5°C to 43°C).

Is this backflow preventer constructed from Lead Free materials?

Yes, this assembly features Lead Free* construction, meaning the wetted surface of the product contains less than 0.25% lead by weight, complying with Lead Free installation requirements.

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