8 C300-OSY-GPM

Item Number: 0191240
1 1
$18,988.19
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: 485.0 lb
  • Body Material: 304 Schedule 40 Stainless Steel
  • Maximum Working Pressure: 175 PSI
  • Check Valve: Patented Tri-Link design for low pressure loss
  • Gate Valves: OSY Resilient Seated
  • Includes: Gallon per Minute Meter
  • Installation: Horizontal or Vertical
  • Approvals: ASSE 1048, CSA B64.5, UL, FM

Description

The Colt 8 inch double check detector backflow preventer assembly is engineered to safeguard potable water supplies from contamination by non-potable water and fire protection substances. Featuring a durable 304 Schedule 40 stainless steel body, patented Tri-Link checks for low pressure loss, and OSY resilient seated gate valves, this unit ensures reliable protection against backsiphonage and backpressure. It includes a gallon per minute meter for detecting leaks and unauthorized usage. Approved for horizontal or vertical installation, it withstands a maximum working pressure of 175 PSI. Item number 0191240.

Help Me Connect

The Colt™ 8 inch double check detector backflow preventer assembly is designed for installation at cross-connections where protection from non-potable water or fire protection substances is required. It connects into the main pipeline to prevent reverse flow due to backsiphonage or backpressure.

  • This assembly is approved for horizontal or vertical installation in accordance with the direction of the flow arrow on the assembly body.
  • It can also be configured for an "N" pattern horizontal installation.
  • The OSY (Outside Stem and Yoke) resilient seated gate valves provide secure shutoff and isolation.
View full details

Additional Details

The Colt™ 8 inch double check detector backflow preventer assembly is designed to prevent the reverse flow of fire protection substances and non-potable water into the potable water supply, protecting against backsiphonage and backpressure.

This assembly is ideal for cross-connections identified as non-health hazards, such as on fire sprinkler systems and service line entrances.

Features

  • Extremely compact design, allowing for smaller vaults and enclosures
  • Approximately 70% lighter than traditional designs
  • Patented Tri-Link Check provides the lowest pressure loss
  • Unmatched ease of serviceability with a single access sleeve
  • Stainless steel construction provides long-term corrosion protection and maximum strength
  • Furnished with a gallon per minute meter to detect underground leaks and unauthorized water use
  • Approved for horizontal or vertical installation in accordance with the flow arrow
  • Can be configured for "N" pattern horizontal installation

Construction

  • 304 Schedule 40 stainless steel housing & sleeve ensures durability
  • Grooved fittings allow integral pipeline adjustment
  • OSY (Outside Stem and Yoke) resilient seated gate valves included
  • Four test cocks for easy inspection and testing
  • Reversible check disc rubber for extended life
  • Optional integrated supervisory switch on each gate valve of the OS&Y valve

It is illegal to use this product in any plumbing system providing water for human consumption, such as cooking or dishwashing, in the United States. Before installing this device or mixing product, consult your local water authority, building and plumbing codes.

Specifications

  • Brand: Colt
  • Product Type: Double Check Detector Backflow Preventer Assembly
  • Nominal Size: 8 inch

Materials

  • Housing & Sleeve Material: 304 Schedule 40 Stainless Steel
  • Elastomers: EPDM, Silicone, Buna 'N'
  • Tri-Link Check Material: Noryl®, Stainless Steel
  • Check Disc Material: Reversible Silicone or EPDM
  • Test Cocks: Lead Free* Bronze Body
  • Pins & Fasteners: 300 Series Stainless Steel
  • Springs: Stainless Steel
  • Gate Valve Type: OSY (Outside Stem and Yoke) Resilient Seated

Performance

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

Certificates & Approvals

  • ASSE 1048
  • AWWA C510-97
  • CSA B64.5
  • UL Classified
  • FM Approved
  • Approved by the Foundation for Cross-Connection Control and Hydraulic Research at The University of Southern California (ASME C510-93)

FAQs

What is the primary function of this backflow preventer?

This backflow preventer assembly is designed to prevent the reverse flow of non-potable water and fire protection substances into a potable water supply, protecting against both backsiphonage and backpressure.

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

The housing and sleeve are made from 304 Schedule 40 stainless steel. The Tri-Link checks use Noryl® and stainless steel, while the check discs are made from reversible silicone or EPDM.

What is the maximum working pressure for this 8-inch backflow preventer?

This assembly has a maximum working pressure of 175 PSI (12.1 bar), making it suitable for a wide range of industrial and fire protection applications.

Can this backflow preventer be installed in any orientation?

Yes, this backflow preventer is approved for both horizontal and vertical installations. It can also be configured for an "N" pattern horizontal setup.

What is the purpose of the integrated gallon per minute meter?

The integrated gallon per minute meter helps detect underground leaks within the system and can also identify unauthorized water use, providing an additional layer of system monitoring.

Related Products

1 2