8 4000SS-DOSY-GxG-FS

Item Number: F0694012
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$27,755.25
Special Order
When Will it Ship: Contact for Lead Time
Estimated transit time: 2 to 5 Business Days

Brand - Ames
  • Size: 8 inch
  • Weight: 752.0 lb
  • Body Material: 300 Series Stainless Steel
  • Shutoff Valves: Domestic OSY Gate Valves
  • Connections: Grooved Inlet x Grooved Outlet
  • Maximum Working Pressure: 175 psi
  • Flood Sensor: SentryPlus Alert® Technology
  • Approvals: ASSE 1013, UL Classified, FM Approved
  • Lead Free* Construction

Description

The 8 inch Ames Series 4000SS Reduced Pressure Zone (RPZ) backflow preventer, SKU F0694012, offers superior protection for potable water systems against health hazard cross-connections. Constructed with a lightweight 300 Series stainless steel body, it features domestic OSY grooved shutoff valves and a patented cam-check assembly for maximum flow. This Lead Free* unit includes a SentryPlus Alert® flood sensor to detect relief valve discharge, which can be activated with an add-on connection kit for real-time alerts. It is ASSE 1013, UL Classified, and FM Approved, ensuring reliability and compliance.

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Connections

This 8 inch Ames 4000SS backflow preventer features grooved inlet and grooved outlet connections for straightforward installation into a pipeline system. It is equipped with domestic OSY (Outside Stem and Yoke) gate valves for secure shutoff.

Flood Sensor Activation

The integrated SentryPlus Alert® flood sensor requires an add-on connection kit to become active and relay alerts for potential flooding events. Connection kit options include those compatible with Building Management Systems (BMS), cellular communication, or 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

The 8 inch Ames Series 4000SS Reduced Pressure Zone (RPZ) backflow preventer assembly is designed to protect potable water supplies by preventing the reverse flow of contaminated water into the system due to backsiphonage or backpressure. This assembly is ideal for cross-connections identified as health hazard applications and other contaminants at the service line entrance.

Key Features

  • Lightweight stainless steel body construction, half the weight of competitive designs, reduces installation and shipping costs.
  • Short lay length and compact construction allow for installation in smaller enclosures and easier retrofitting.
  • Includes domestic OSY (Outside Stem and Yoke) resilient seated gate valves for reliable shutoff.
  • Features a patented cam-check assembly with a single torsion spring design, providing maximum flow at low pressure drop.
  • The stainless steel differential relief valve utilizes a balanced rolling diaphragm, eliminating sliding seals and lowering maintenance costs.
  • Equipped with a SentryPlus Alert® flood sensor to detect excessive water discharges from the relief valve.
  • It is crucial to note that an add-on connection kit is required to activate the flood sensor's alert feature. Without this kit, the sensor is a passive component with no communication to other devices.
  • Lead Free* construction ensures the wetted surface of this product contains less than 0.25% lead by weight, complying with national codes.

Specifications

  • Size: 8 inch
  • Body Material: 300 Series Stainless Steel
  • Internal Metal Parts: 300 Series Stainless Steel
  • Check Assembly Material: Noryl®
  • Shutoff Valves: Domestic OSY Resilient Seated Gate Valves
  • Inlet Connection: Grooved
  • Outlet Connection: Grooved
  • Maximum Working Pressure: 175 psi (12.1 bar)
  • Temperature Range: 33°F - 110°F (0.5°C – 43°C)
  • Lead Content: Less than 0.25% by weight (wetted surface)

Certificates & Approvals

  • AWWA C511-92
  • ASSE 1013
  • B64.5
  • UL Classified (OSY only)
  • FM Approved (OSY only)

Approximate Dimensions

  • Length (A): 52.5 inches (1334 mm)
  • Height (C-OSY): 37.75 inches (959 mm)
  • Width (P): 15.5 inches (394 mm)

Approximate Weight

  • With Gates: 571 lbs (259 kg)
  • Without Gates: 179 lbs (81 kg)

FAQs

What is the primary function of the 8 inch Ames Series 4000SS backflow preventer?

This backflow preventer is designed to protect potable water supplies by preventing contaminated water from flowing backward into the system due to backsiphonage or backpressure. It is used in health hazard cross-connection applications.

What materials are used in the construction of this backflow preventer?

The main valve body and all internal metal parts are constructed from 300 Series stainless steel for corrosion resistance. The check assembly is made from Noryl®.

What type of connections does this 8 inch backflow preventer have?

This assembly features grooved inlet and grooved outlet connections, along with domestic OSY (Outside Stem and Yoke) resilient seated gate valves.

How does the SentryPlus Alert® flood sensor work?

The flood sensor detects excessive water discharges from the relief valve. To activate its alert capabilities and enable communication with other devices like BMS or cellular networks, an add-on connection kit is required.

What are the maximum operating pressure and temperature ratings for this unit?

The 8 inch Ames Series 4000SS backflow preventer has a maximum working pressure of 175 psi (12.1 bar) and an operating temperature range of 33°F to 110°F (0.5°C to 43°C).

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