3 C400-OSY-FS

Item Number: F0191271
1 1
$6,328.12
Special Order
When Will it Ship: Contact for Lead Time
Estimated transit time: 2 to 5 Business Days

Brand - Ames
  • Size: 3 inch
  • Weight: 228.0 lb
  • Housing & Sleeve Material: 304 (Schedule 40) Stainless Steel
  • Maximum Working Pressure: 175 PSI
  • Temperature Range: 33°F - 140°F
  • Includes SentryPlus Alert® flood sensor
  • Compact design for small enclosures
  • Groove couplings for easy installation
  • Approved for horizontal installation

Description

The Colt 3 inch Reduced Pressure Zone Backflow Preventer (SKU F0191271) prevents the reverse flow of contaminated water into potable water supplies from fire protection systems and health hazard cross-connections. Constructed with a durable 304 stainless steel body and resilient seated OSY gate valves, it is approved for horizontal installation. This compact unit includes an integrated SentryPlus Alert flood sensor to detect and notify personnel of excessive relief valve discharge, with optional add-on kits for advanced monitoring via Modbus or Wi-Fi. It handles a maximum working pressure of 175 PSI and is AWWA C511-97, UL, FM, CSA B64.4, and NSF approved.

Help Me Connect

This Colt™ C400 Reduced Pressure Zone Backflow Preventer is designed for horizontal installation only. Ensure the assembly is installed in accordance with the direction of the flow arrow to prevent backsiphonage and backpressure. The unit features groove couplings for straightforward and secure connection into your piping system. An add-on sensor connection kit is required to activate the flood sensor's communication capabilities, allowing for integration with building management systems (BMS) or Wi-Fi platforms via the Sensor Control Monitor.

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Additional Details

This Colt™ 3 inch lead free reduced pressure zone backflow preventer assembly is designed to prevent the reverse flow of fire protection substances and non-potable water from entering the potable water supply due to backsiphonage or backpressure. It is approved for horizontal installation and is ideal for continuous pressure piping applications and at cross-connections identified as health hazards.

Construction & Design

  • Features a 304 (Schedule 40) stainless steel housing and sleeve with a quick access sleeve.
  • Includes torsion spring check modules for ease of serviceability and replaceable check disc rubber.
  • Equipped with resilient seated gate valves with outside stem and yoke (OSY).
  • Designed to be extremely compact, allowing for installation in small enclosures.
  • Uses groove couplings for easy installation and pipe alignment.
  • Contains drip tight shutoff valves.

Flood Detection & Monitoring

  • Includes a flood sensor with SentryPlus Alert® technology to detect excessive water discharge from the relief valve.
  • The sensor relays signals for potential flooding events, triggering multichannel alerts.
  • An add-on sensor connection kit is required to activate the flood sensor for communication capabilities.
  • 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

  • Product Type: Reduced Pressure Zone Backflow Preventer
  • Size: 3 inch
  • Brand: Colt
  • Model: C400-OSY-FS
  • Configuration: Horizontal
  • 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
  • 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

Dimensions & Weight (3 inch OSY)

  • Overall Length (A): 31 3/4 inches (806 mm)
  • Height (C OSY): 18 7/8 inches (479 mm)
  • Width (D): 10 1/4 inches (260 mm)
  • Weight (C400 OSY): 148 lbs (67 kg)

Certificates & Approvals

  • Approved by Foundation for Cross-Connection Control and Hydraulic Research at The University of Southern California (FCCCHR-USC)
  • AWWA C511-97
  • UL Classified
  • FM Approved
  • CSA B64.4
  • NSF Certified

FAQs

What is the primary function of this backflow preventer?

Its primary function is to prevent the reverse flow of fire protection substances and non-potable water into the potable water supply, protecting against contamination from backsiphonage and backpressure.

What type of installation is required for this C400 backflow preventer?

This backflow preventer is approved for horizontal installation only. It must be installed in accordance with the direction of the flow arrow for proper function.

Does this backflow preventer include a flood detection system?

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

What are the main materials used in the construction of this assembly?

The housing and sleeve are made of Type 304 (Schedule 40) stainless steel, check discs are reversible silicone or EPDM, and test cocks are lead-free bronze. Springs and fasteners are 300 Series stainless steel.

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

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).

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