6 5000SS-OSY-LM-FS
Item Number: F0691560Brand - Ames
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- 6 inch Reduced Pressure Detector Backflow Preventer
- Weight: 478.0 lb
- SentryPlus Alert® flood sensor for discharge detection
- Stainless steel body and internal parts for corrosion resistance
- Maximum Working Pressure: 175 psi
- Temperature Range: 33°F – 110°F
- UL and FM approved OSY resilient seated gate valves
- Noryl® check assembly and stainless steel relief valve
- Short end-to-end dimensions for easy retrofit
Description
Description
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Flood Sensor Connectivity
The integrated flood sensor is designed to detect excessive water discharge from the relief valve. To activate its full flood alert capabilities and relay signals for corrective action, an add-on sensor connection kit is required. This connection kit enables compatibility with Building Management Systems (BMS) and cellular network communication.
When paired with the Sensor Control Monitor, the flood sensor can integrate with BAS via RS-485 Modbus or the Nexa® platform through Wi-Fi, delivering maintenance alerts for potential flooding events.

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Additional Details
This 6 inch reduced pressure detector backflow preventer assembly is designed to protect potable water supplies from hazardous cross-connections, backpressure, and backsiphonage. It is ideal for continuous pressure piping applications, fireline, irrigation, and industrial processing, particularly at cross-connections identified as health hazards or other contaminants.
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, consult your local water authority, building, and plumbing codes.
Key Features
- Features a SentryPlus Alert® flood sensor to detect continuous discharge from the relief valve, helping limit flooding and costly damage.
- The flood alert feature is activated with an add-on sensor connection kit, compatible with Building Management Systems (BMS) and cellular network communication.
- Constructed with a lightweight stainless steel body and internal parts for long-term corrosion resistance, maximum strength, and reduced installation costs.
- Designed with short end-to-end dimensions for easy retrofit installations.
- Equipped with UL and FM approved outside stem and yoke (OSY) resilient seated gate valves for reliable shutoff.
- Thermoplastic cam-check valves provide maximum flow and low pressure drop, requiring no special tools for servicing.
- The stainless steel relief valve features a balanced rolling diaphragm, eliminating sliding seals and lowering maintenance costs.
- Includes bronze body ball valve test cocks.
- Compact modular design allows for installation in smaller enclosures.
Specifications
General
- Product Type: Reduced Pressure Detector Backflow Preventer
- Nominal Size: 6 inch
- Model Series: 5000SS
- Meter: Less Meter (LM)
- Flood Sensor: Yes (FS)
- Shutoff Valve Type: Outside Stem and Yoke (OSY) Gate Valves
Materials
- Main Valve Body: 300 Series Stainless Steel
- Internal Metal Parts: 300 Series Stainless Steel
- Check Assembly: Noryl®
- Relief Valve: Stainless Steel
- Discs: Reversible Elastomer
- Test Cocks: Bronze Body Ball Valve
Performance
- Maximum Working Pressure: 175 psi (12.1 bar)
- Temperature Range: 33°F – 110°F (0.5°C – 43°C)
Certificates & Approvals
- AWWA C511-92
- ASSE 1047
- CSA B64.5
- cULus Listed
- FM Approved
- UL Classified
FAQs
What is the primary purpose of this 6 inch backflow preventer?
What material is the main valve body made from?
Does this assembly include a flood sensor?
What type of shutoff valves are included with this model?
What is the maximum operating pressure and temperature range for this backflow preventer?
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