3 C400-NRS-FS

Item Number: F0191289
1 1
$6,298.87
Special Order
When Will it Ship: Contact for Lead Time
Estimated transit time: 2 to 5 Business Days

Brand - Ames
  • Size: 3 inch
  • Weight: 224.0 lb
  • Assembly Type: Reduced Pressure Zone (RPZ)
  • Housing & Sleeve Material: Type 304 Stainless Steel
  • Gate Valves: Non-Rising Stem (NRS)
  • Maximum Working Pressure: 175 psi
  • Temperature Range: 33°F - 140°F
  • Flood Sensor: SentryPlus Alert® Technology
  • Lead Free: Wetted surfaces contain <0.25% lead

Description

The 3 inch Colt C400 Reduced Pressure Zone (RPZ) backflow preventer assembly is engineered to protect potable water supplies from contamination caused by backsiphonage and backpressure. Featuring a compact design, it utilizes Type 304 stainless steel for the housing and sleeve, non-rising stem (NRS) gate valves, and torsion spring check valves. An integrated flood sensor with SentryPlus Alert® technology detects excessive relief valve discharge, with add-on kits available for remote alerts. Approved for horizontal installation, this lead-free assembly ensures reliable protection with a maximum working pressure of 175 psi. Item number F0191289.

Help Me Connect

This 3 inch backflow preventer assembly is designed for horizontal installation in potable water systems. It features groove couplings for straightforward connection and alignment with existing piping. The non-rising stem gate valves control water flow, and the assembly includes Lead Free® bronze body test cocks for easy system testing and maintenance. To enable flood alert notifications, an add-on connection kit (sold separately) is required to integrate the flood sensor with building management systems (BMS), cellular networks, or the Nexa® platform via Wi-Fi or RS-485 Modbus.

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Additional Details

The Colt™ 3 inch stainless steel Reduced Pressure Zone (RPZ) Backflow Preventer Assembly is designed to prevent the reverse flow of contaminated water into the potable water supply due to backsiphonage or backpressure. This assembly is approved for horizontal installation and features an extremely compact design, making it lighter than traditional models.

This C400 series assembly includes a stainless steel body with a quick-access sleeve, torsion spring check valves, resilient seated non-rising stem (NRS) gate valves, and a corrosive-resistant stainless steel bottom-mounted pressure relief valve. It also incorporates a flood sensor with SentryPlus Alert® technology to detect excessive water discharge from the relief valve, providing alerts for potential flooding events.

Key Features

  • Compact Design: Extremely compact and lighter than traditional backflow preventers.
  • Robust Construction: Type 304 (Schedule 40) stainless steel housing and sleeve for durability.
  • Easy Installation: Groove fittings facilitate simple pipe alignment and installation.
  • Advanced Check Modules: Patented link check design for lower pressure loss and unmatched ease of serviceability.
  • Flood Detection: Integrated flood sensor with SentryPlus Alert® technology for continuous monitoring of relief valve discharge.
  • Gate Valves: Non-rising stem (NRS) resilient seated gate valves.
  • Test Cocks: Lead Free® bronze body ball valve type test cocks.
  • Lead Free: Wetted surfaces contain less than 0.25% lead by weight.

Note: An add-on connection kit is required to activate the flood sensor's alert relay. Connection kit options include BMS, cellular communication, and the Sensor Control Monitor which enables integration with BAS via RS-485 Modbus or the Nexa® platform through Wi-Fi.

Specifications

General

  • Size: 3 inch
  • Model: C400-NRS-FS
  • Assembly Type: Reduced Pressure Zone (RPZ)
  • Installation: Horizontal
  • Relief Valve: Noryl®, stainless steel, bottom mounted
  • Maximum Working Pressure: 175 psi (12.1 bar)
  • Temperature Range: 33°F - 140°F (0.5°C - 60°C)

Materials

  • Housing & Sleeve: Type 304 (Schedule 40) stainless steel
  • Gate Valves: Non-rising stem (NRS), resilient seated
  • Check Valves: Torsion spring, link check modules
  • Elastomers: EPDM, silicone, Buna 'N'
  • Check Discs: Reversible silicone or EPDM
  • Test Cocks: Lead Free® bronze body
  • Pins & Fasteners: 300 Series stainless steel
  • Springs: Stainless steel

Features

  • Flood Sensor: Yes, with SentryPlus Alert® technology
  • Lead Content: Wetted surfaces contain less than 0.25% lead by weight

Dimensions & Weight (approximate for 3" C400N)

  • Overall Length (A): 31 1/8 inches (791 mm)
  • Height (C): 18 1/4 inches (464 mm)
  • Relief Valve Clearance (D): 10 3/8 inches (264 mm)
  • Distance Between Shutoffs (P): 23 inches (584 mm)
  • Weight: 134 lbs (61 kg)

Certificates & Approvals

  • Approved By: Foundation for Cross-Connection Control and Hydraulic Research at The University of Southern California (FCCCHR-USC)
  • Standard: AWWA C511-97
  • Certification: cCSAus® (CSA B64.4)
  • Approval: FM Approved®
  • Certification: NSF®

FAQs

What is the primary function of this Colt C400 backflow preventer?

Its primary function is to prevent the reverse flow of contaminated water from entering the potable water supply due to backsiphonage or backpressure.

What type of gate valves does this assembly use?

This assembly uses non-rising stem (NRS) resilient seated gate valves, which are designed for durability and reliable flow control.

What materials are used for the main housing and sleeve of the backflow preventer?

The main housing and sleeve are constructed from Type 304 (Schedule 40) stainless steel, offering excellent corrosion resistance and strength.

How does the flood sensor function, and what is required to activate its alerts?

The integrated flood sensor with SentryPlus Alert® technology detects excessive water discharge from the relief valve. To activate its alert relay, an add-on connection kit (sold separately) is required for integration with communication systems like BMS or Wi-Fi.

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

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