8 C400-DNRS-FS

Item Number: F0425203
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$46,881.72
Special Order
When Will it Ship: Contact for Lead Time
Estimated transit time: 2 to 5 Business Days

Brand - Ames
  • Nominal Size: 8 inch
  • Weight: 591.0 lb
  • Valve Type: Non-Rising Stem (NRS) Gate Valves
  • Housing Material: Type 304 (Schedule 40) Stainless Steel
  • Features: Integrated flood sensor with SentryPlus Alert® technology
  • Connections: Groove couplings for easy installation
  • Maximum Working Pressure: 175 psi
  • Temperature Range: 33°F - 140°F
  • Lead Free* Construction: Wetted surfaces < 0.25% lead

Description

The Colt 8 inch C400 Reduced Pressure Zone Backflow Preventer is a stainless steel assembly designed to prevent potable water contamination from backsiphonage and backpressure in health hazard applications. It features an extremely compact, lightweight design with Type 304 stainless steel housing and non-rising stem gate valves. An integrated flood sensor with SentryPlus Alert® technology detects excessive relief valve discharge and can provide alerts when paired with an add-on connection kit. The assembly operates up to 175 psi and is suitable for horizontal installation, complying with Lead Free* requirements. Item number F0425203.

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Connections

  • The assembly utilizes groove couplings for pipeline connection, designed for integral pipeline adjustment and ease of installation.
  • The integrated flood sensor requires an add-on sensor connection kit to activate its communication features. These kits offer various options, including integration with Building Management Systems (BMS), cellular communication, or a Sensor Control Monitor for connection to BAS via RS‑485 Modbus or the Nexa® platform through Wi-Fi.
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Additional Details

The Colt 8 inch stainless steel reduced pressure zone backflow preventer assembly is designed to protect potable water systems from contamination due to backsiphonage and backpressure, commonly used in health hazard applications.

This assembly features a flood sensor with SentryPlus Alert® technology to detect excessive relief valve discharges, providing an early warning system when paired with an add-on connection kit.

Key Features

  • 8 inch nominal size with non-rising stem (NRS) gate valves.
  • Flood sensor with SentryPlus Alert® technology detects continuous discharge from the relief valve.
  • Supports integration with add-on sensor connection kits for BMS, cellular communication, or Sensor Control Monitor for BAS via RS‑485 Modbus or Nexa® platform through Wi-Fi.
  • Constructed with a Type 304 (Schedule 40) stainless steel housing and sleeve for durability.
  • Features an extremely compact design, up to 70% lighter than traditional models.
  • Utilizes torsion spring link check modules for unmatched ease of serviceability and lowest pressure loss.
  • Drip tight shutoff valves and ball valve type test cocks included.
  • Groove couplings facilitate easy installation and integral pipeline adjustment.
  • Approved for horizontal installation.
  • Lead Free* construction, with wetted surfaces containing less than 0.25% lead by weight.

NOTICE: An add-on sensor connection kit is required to activate the flood sensor's communication features. Without this kit, the flood sensor is a passive component and will not communicate with other devices. Always refer to installation instructions and local governing authorities for proper installation and drainage requirements.

Specifications

General

  • Product Type: Reduced Pressure Zone Backflow Preventer
  • Nominal Size: 8 inch
  • Model Series: C400
  • Valve Type: Non-Rising Stem (NRS) Gate Valves
  • Installation: Horizontal
  • Lead Content: Wetted surfaces contain less than 0.25% lead by weight

Materials

  • Housing & Sleeve: Type 304 (Schedule 40) Stainless Steel
  • Elastomers: EPDM, Silicone, Buna 'N'
  • Link Checks: Noryl®, Stainless Steel
  • Check Discs: Reversible Silicone or EPDM
  • Test Cocks: Lead Free* Bronze Body
  • Pins & Fasteners: 300 Series Stainless Steel
  • Springs: Stainless Steel

Performance

  • Maximum Working Pressure: 175 psi (12.1 bar)
  • Temperature Range: 33°F - 140°F (0.5°C - 60°C)

Approvals

  • AWWA Standard: C511-97
  • ASSE Standard: 1013
  • CSA Standard: B64.4
  • NSF Standard: Certified to NSF/ANSI 61-G
  • Approved by: Foundation for Cross-Connection Control and Hydraulic Research at the University of Southern California (FCCCHR-USC)

Dimensions & Weight (8 inch NRS)

  • Overall Length (A): 49.75 inches (1264 mm)
  • Height (C, NRS): 37.75 inches (959 mm)
  • Width (G): 9.69 inches (246 mm)
  • Weight: 483 lbs (219 kg)

FAQs

What is the primary purpose of this 8 inch C400 backflow preventer?

This 8 inch C400 Reduced Pressure Zone (RPZ) backflow preventer is designed to protect potable water systems from contamination by preventing the reverse flow of non-potable water caused by backsiphonage or backpressure.

Does this backflow preventer include a flood sensor?

Yes, it includes an integrated flood sensor with SentryPlus Alert® technology to detect excessive water discharge from the relief valve. An add-on connection kit is required to activate its communication features for alerts.

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

The housing and sleeve are constructed from Type 304 (Schedule 40) stainless steel. Other components include EPDM, silicone, and Buna 'N' elastomers, Noryl® and stainless steel link checks, and Lead Free* bronze body test cocks.

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

This backflow preventer has a maximum working pressure of 175 psi (12.1 bar) and is designed to operate within a temperature range of 33°F to 140°F (0.5°C to 60°C).

Is this 8 inch backflow preventer compliant with Lead Free* standards?

Yes, this C400 assembly features Lead Free* construction, meaning all wetted surfaces that contact consumable water contain less than 0.25% lead by weight, complying with Lead Free* installation requirements.

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