4 C400-NRS-FS

Item Number: F0191290
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$8,366.81
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Estimated transit time: 2 to 5 Business Days

Brand - Ames
  • Product Type: Reduced Pressure Zone Backflow Preventer
  • Weight: 165.0 lb
  • Nominal Size: 4 inch
  • Housing Material: Type 304 Stainless Steel
  • Shutoff Type: Non-Rising Stem (NRS) Gate Valves
  • Integrated Flood Sensor: SentryPlus Alert® Technology
  • Maximum Working Pressure: 175 psi
  • Installation: Horizontal
  • Approved: ASSE 1013, CSA B64.4, UL Classified, FM Approved, NSF Certified

Description

The Colt 4 inch reduced pressure zone backflow preventer assembly safeguards potable water from contamination by preventing reverse flow due to backsiphonage and backpressure. This compact unit features a Type 304 stainless steel housing, non-rising stem gate valves, and grooved connections for horizontal installation. An integrated flood sensor with SentryPlus Alert® technology detects excessive relief valve discharge, with options for remote alerting via connection kits. It operates up to 175 psi and is approved by ASSE 1013, CSA B64.4, UL Classified, FM Approved, and NSF Certified, ensuring reliable performance for various applications. Item F0191290.

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Installation Orientation

  • This backflow preventer assembly is approved for horizontal installation. The direction of flow must align with the arrow on the unit.

System Connections

  • The assembly features grooved couplings for easy installation and precise pipe alignment with compatible grooved piping systems.

Flood Sensor Integration

  • The integrated flood sensor can be connected to an add-on connection kit to enable external alerts for potential flooding.
  • Connection kit options include interfaces for Building Management Systems (BMS), cellular communication, or the Sensor Control Monitor, which integrates with BAS via RS-485 Modbus or the Nexa® platform through Wi-Fi.
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Additional Details

The Colt™ 4 inch stainless steel reduced pressure zone backflow preventer assembly is engineered to prevent the reverse flow of contaminated water from entering the potable water supply. It protects against backsiphonage and backpressure, ensuring water safety. This compact and lighter assembly is approved for horizontal installation.

Features

  • Extremely compact design, lighter than traditional backflow preventers
  • Utilizes a Type 304 (Schedule 40) stainless steel housing and sleeve for durability
  • Groove couplings for easy installation and pipe alignment
  • Features patented link check modules for lower pressure loss
  • Designed for unmatched ease of serviceability
  • Equipped with resilient seated non-rising stem gate valves (NRS) for reliable shutoff
  • Includes drip-tight shutoff valves and ball valve type test cocks
  • Corrosion-resistant stainless steel bottom-mounted pressure relief valve
  • Approved for horizontal installation in accordance with flow arrow direction

Flood Sensor Technology

  • Integrated flood sensor with SentryPlus Alert® technology detects excessive water discharge from the relief valve
  • When paired with an add-on connection kit, the sensor activates to relay alerts for potential flooding events
  • Connection kit options include BMS, cellular communication, and the Sensor Control Monitor for integration with BAS via RS-485 Modbus or Nexa® platform through Wi-Fi

Construction Materials

  • Housing & Sleeve: Type 304 (Schedule 40) stainless steel
  • Elastomers: EPDM, silicone, and 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

Specifications

  • Product Type: Reduced Pressure Zone Backflow Preventer
  • Nominal Size: 4 inch
  • Model: C400-NRS-FS
  • Installation: Horizontal
  • Housing & Sleeve Material: Type 304 (Schedule 40) stainless steel
  • Shutoff Type: Non-rising stem gate valves (NRS)
  • Check Modules: Torsion spring, Link Check
  • Check Disc Material: Reversible silicone or EPDM
  • Test Cock Body Material: Lead Free* bronze
  • Elastomer Materials: EPDM, silicone, Buna 'N'
  • Pins & Fasteners Material: 300 Series stainless steel
  • Spring Material: Stainless steel
  • Connections: Grooved

Performance Data

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

Certificates & Approvals

  • Foundation for Cross-Connection Control and Hydraulic Research (FCCCHR-USC)
  • AWWA C511-97
  • ASSE 1013
  • CSA B64.4
  • UL Classified
  • FM Approved
  • NSF Certified

FAQs

What is the primary function of the Colt 4 inch Reduced Pressure Zone Backflow Preventer?

Its primary function is to prevent contaminated water from flowing backward into the potable water supply. It protects against both backsiphonage and backpressure events.

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

The housing and sleeve are made from Type 304 (Schedule 40) stainless steel. Internal components like check discs are reversible silicone or EPDM, and test cocks feature a Lead Free* bronze body.

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

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

Does this backflow preventer include any flood detection features?

Yes, it features an integrated flood sensor with SentryPlus Alert® technology. This sensor detects excessive water discharges from the relief valve and can relay alerts when paired with an add-on connection kit.

What type of approvals and certifications does this product hold?

This assembly is approved by ASSE 1013, AWWA C511-97, CSA B64.4, UL Classified, FM Approved, and NSF Certified. It also meets FCCCHR-USC standards.

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