2 1/2 3000SS-OSY-TS-GPM
Item Number: 88003142Brand - Ames
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- Nominal Size: 2 1/2 inch
- Weight: 212.0 lb
- Body Material: Stainless Steel
- Maximum Working Pressure: 175 PSI
- Features OS&Y Shutoffs with Tamper Switch
- Includes Gallons Per Minute (GPM) meter
- Low head loss Cam-Check Assembly valve
- Suitable for horizontal or vertical "flow up" installation
- Designed for non-health hazard containment
Description
Description
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Connections & Installation
- This backflow preventer assembly features OS&Y (Outside Stem and Yoke) resilient seated gate valves on both ends for shutoff.
- The modular design includes a two-bolt grooved style coupling for connecting to existing piping.
- It can be installed in either a horizontal or vertical "flow up" position to suit various site requirements (ASSE Only).
- The integrated supervisory switch connects to your fire alarm system to monitor the gate valve position.

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Additional Details
This 2 1/2 inch AMES 3000SS Double Check Detector Backflow Preventer Assembly with OS&Y shutoffs, a tamper switch, and a gallons per minute meter is designed to prevent the reverse flow of non-potable fire protection system substances into the potable water supply due to backsiphonage and/or backpressure.
It is ideal for protecting cross-connections identified as non-health hazards, such as those found in fire protection systems and other service line entrance contaminants.
Features & Benefits
- Cam-Check Assembly valve provides low head loss for efficient water flow.
- Short lay length makes it ideally suited for retrofit installations.
- Stainless steel body is half the weight of competitive designs, significantly reducing installation and shipping costs.
- Stainless steel construction ensures long-term corrosion protection and maximum strength.
- Single top access cover with two-bolt grooved style coupling allows for easy maintenance without special tools.
- Compact construction permits installation in smaller vaults and enclosures.
- Furnished with a 5/8" x 3/4" bronze meter (gpm or cfm) to detect underground leaks and unauthorized water use.
- Includes an integrated supervisory switch on each gate valve of the OS&Y model to signal when the valve is closed or when the switch is removed.
- Can be installed in both horizontal or vertical "flow up" positions (ASSE Only).
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
- Product Type: Double Check Detector Backflow Preventer
- Series: 3000SS
- Nominal Size: 2 1/2 inch
- Model: OS&Y with Tamper Switch (TS-OSY), GPM Meter
- Body Material: Stainless Steel (300 Series stainless steel internal metal parts and main check body)
- Check Assembly Material: Noryl®
- Meter: 5/8" x 3/4" Bronze (gpm or cfm)
- Maximum Working Pressure: 175 PSI (12 bar)
- Operating Temperature Range: 33°F - 110°F (0.5°C – 43°C)
- Installation Orientation: Horizontal or Vertical "flow up" (ASSE Only)
Certificates & Approvals
- ASSE 1048
- AWWA C510-92
- CSA B64.5
- UL 1469
- UL Classified (OSY only)
- FM Approved (sizes 2 1/2" – 10", OSY only)
- USC Foundation for Cross-Connection Control and Hydraulic Research