2 1/2 C300-OSY-TS-GPM
Item Number: 88003110Brand - Ames
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- Nominal Size: 2 1/2 inch
- Weight: 189.0 lb
- Body Material: Stainless Steel
- Maximum Working Pressure: 175 PSI
- Check Valve Design: Tri-Link Check Valves
- Shutoff Valves: OSY Resilient Seated Gate Valves
- Monitoring: Gallon per minute meter included
- Safety: UL Certified Safety Signaling Supervisory Switch
- Installation: Approved for Horizontal or Vertical
Description
Description
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Application & Compatibility
This Colt double check detector backflow preventer assembly is suitable for protecting potable water supplies from backsiphonage and backpressure in non-health hazard cross-connections. It is commonly used in fire sprinkler systems and at service line entrances where non-potable water or fire protection substances could potentially enter the drinking water supply. The assembly is approved for both horizontal and vertical installations, allowing flexibility to match your specific piping configuration.

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Additional Details
This Colt 2 1/2 inch double check detector backflow preventer assembly is designed to prevent the reverse flow of fire protection substances and water of non-potable quality into the potable water supply.
It is ideal for protection at cross-connections identified as non-health hazards, such as on fire sprinkler systems and service line entrances, due to backsiphonage or backpressure.
Key Features
- Compact modular design with a single access sleeve for easy maintenance.
- Approved for horizontal or vertical installation.
- Constructed with a stainless steel body (304 Schedule 40) for long-term corrosion protection and maximum strength.
- Equipped with Tri-Link check valves for the lowest pressure loss.
- Features outside stem and yoke (OSY) resilient seated gate valves.
- Includes a UL Certified Safety Signaling (Control No. 3L38) supervisory switch.
- Furnished with a gallon per minute meter to detect underground leaks and unauthorized water use.
- Four test cocks are included for system verification.
- Features replaceable check disc rubber for easy servicing.
Specifications
General
- Nominal Size: 2 1/2 inch
- Maximum Working Pressure: 175 PSI (12.06 bar)
- Check Valve Type: Double Check Detector
- Check Valve Design: Tri-Link Check Valves
- Shutoff Valves: Outside Stem and Yoke (OSY) Resilient Seated Gate Valves
- Supervisory Switch: UL Certified Safety Signaling (Control No. 3L38)
- Meter: Gallon per minute (GPM) meter included
- Installation Orientation: Horizontal or Vertical
- Test Cocks: 4
Materials
- Housing & Sleeve: 304 (Schedule 40) Stainless Steel
- Elastomers: EPDM, Silicone, Buna 'N'
- Tri-Link Checks: Stainless Steel
- Check Discs: Replaceable Check Disc Rubber / Reversible Silicone or EPDM
- Test Cocks: Lead Free* Bronze Body
- Pins & Fasteners: 300 Series Stainless Steel
- Springs: Stainless Steel
Certificates & Approvals
- Approved by Foundation for Cross-Connection Control and Hydraulic Research at The University of Southern California (FCCCHR-USC)
- AWWA C510-97
- ASSE 1048
- CSA B64.5
- cULus Listed
- FM Approved (BFG & OSY Only)