8 C300N-OSY-GPM

Item Number: 0191252
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$20,992.98
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Estimated transit time: 2 to 5 Business Days

Brand - Ames
  • 8 inch Double Check Detector Backflow Preventer
  • Weight: 720.0 lb
  • Housing & Sleeve Material: 304 (Schedule 40) Stainless Steel
  • Maximum Working Pressure: 175 psi
  • Patented Tri-Link Check provides lowest pressure loss
  • Shutoffs: Outside Stem and Yoke (OS&Y) Gate Valves
  • Includes Gallon per Minute Meter for leak detection
  • Approved for N Pattern Installation
  • AWWA C510-97 Approved

Description

The Colt 8 inch C300N Double Check Detector Backflow Preventer Assembly protects potable water supplies from dangerous cross-connections in non-health hazard applications, such as fire sprinkler systems and industrial processing. This compact unit features a durable 304 stainless steel housing and sleeve, with patented Tri-Link check valves designed for lowest pressure loss. Equipped with Outside Stem and Yoke (OS&Y) shutoffs and a gallon per minute meter for leak detection, it supports N pattern, horizontal, or vertical installations. It is designed for continuous pressure service with a maximum working pressure of 175 psi.

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Connections

  • This 8 inch double check detector assembly is designed for N pattern installations, and can also be installed in horizontal or vertical orientations.
  • It features flanged connections at both the inlet and outlet, typical for Outside Stem and Yoke (OS&Y) gate valves.
  • The bypass assembly includes a meter and a double check valve assembly, designed to connect in parallel for monitoring unauthorized water use or leaks.
  • Four test cocks are provided for easy testing and maintenance of the backflow prevention assembly.
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Additional Details

This Colt™ 8 inch double check detector backflow preventer assembly is designed to prevent the reverse flow of fire protection substances and water of non-potable quality from being pumped or siphoned into the potable water supply due to backsiphonage and/or backpressure in accordance with national plumbing codes and water authority requirements.

It is ideal for protection at cross-connections identified as non-health hazards such as on fire sprinkler systems and from other contaminants found at the service line entrance.

Features

  • Extremely compact design, up to 70% lighter than traditional designs
  • Durable 304 (Schedule 40) Stainless steel housing & sleeve
  • Groove fittings allow integral pipeline adjustment
  • Patented Tri-Link Check provides lowest pressure loss
  • Unmatched ease of serviceability with a single access sleeve
  • Designed for horizontal, vertical or N pattern installations
  • Features replaceable check disc rubber
  • Includes an integrated supervisory switch as an option on each gate valve of the OS&Y model

Design & Components

  • Consists of two independent Tri-Link Check modules within a single housing
  • Equipped with Outside Stem and Yoke (OS&Y) resilient seated gate valves
  • Features four test cocks for easy testing and maintenance
  • Bypass assembly includes a gallon per minute meter to monitor unauthorized water use or leaks
  • Stainless steel construction provides long-term corrosion protection and maximum strength

A WARNING: It is illegal to use this product in any plumbing system providing water for human consumption, such as drinking or dishwashing, in the United States. Before installing standard material product, consult your local water authority, building and plumbing codes.

Specifications

  • Size: 8 inch
  • Model: C300N-OSY-GPM
  • Primary Use: Fire line sprinkler systems, non-potable service applications
  • Installation Pattern: Horizontal, Vertical, or N Pattern
  • Maximum Working Pressure: 175 psi (12.1 bar)
  • Temperature Range: 33°F - 140°F (0.5°C - 60°C)

Materials

  • Housing & Sleeve: 304 (Schedule 40) Stainless steel
  • Elastomers: EPDM, silicone, Buna 'N'
  • Tri-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

Valves & Components

  • Shutoff Valves: Outside Stem and Yoke (OS&Y) resilient seated gate valves
  • Bypass Assembly: Includes meter (gallons/minute), double check valve assembly, test cocks
  • Check Modules: Two independent Tri-Link Check modules
  • Test Cocks: Four

Certificates & Approvals

  • Approved by the Foundation for Cross-Connection Control and Hydraulic Research at The University of Southern California (FCCCHR-USC)
  • AWWA C510-97
  • ASSE 1048
  • CSA B64.5
  • UL Classified
  • FM Approved
  • UL Certified, Safety Signaling, Control No. 3L38 (for integrated supervisory switch option)

FAQs

What is the primary use of the Colt C300N Double Check Detector Assembly?

This assembly is designed to protect drinking water supplies from dangerous cross-connections, particularly in non-health hazard applications such as fire line sprinkler systems and industrial processing.

What types of installations are supported by this backflow preventer?

The Series C300N assembly can be installed in horizontal, vertical, or N pattern configurations, offering flexibility for various site requirements.

What is the maximum working pressure for the 8 inch C300N-OSY-GPM model?

The maximum working pressure for this backflow preventer is 175 psi (12.1 bar), suitable for continuous pressure service.

What materials are used for the main housing and internal checks?

The housing and sleeve are constructed from 304 (Schedule 40) stainless steel. The Tri-Link checks utilize Noryl® and stainless steel components, with reversible silicone or EPDM discs.

Does this assembly include a way to detect water leaks or unauthorized use?

Yes, the assembly is furnished with a bypass assembly that includes a gallon per minute meter to monitor and register water flow, which helps detect underground leaks and unauthorized water use.

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