6 LFC500N-BFG-G-FS
Item Number: F0124671Brand - Ames
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- 6 inch Lead Free Reduced Pressure Detector Backflow Preventer
- Weight: 285.0 lb
- Lead Free construction (wetted surface less than 0.25% lead)
- Compact, modular design; 70% lighter than traditional models
- Type 304 (Schedule 40) stainless steel housing
- Flood sensor with SentryPlus Alert® technology
- Gallon per minute meter for leak detection
- Grooved gear operated butterfly shutoff valves with tamper switch
- Maximum Working Pressure: 175 psi
Description
Description
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Installation & Connectivity
- This backflow preventer is approved for horizontal N pattern installation.
- The flood sensor on the relief valve is activated by an add-on connection kit, which is required for full functionality and alert notification.
- Connection kit options include BMS, cellular communication, or the Sensor Control Monitor, allowing integration with Building Automation Systems (BAS) via RS‑485 Modbus or the Nexa® platform through Wi-Fi.

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Additional Details
The 6 inch AMES Colt™ LFC500N-BFG-G-FS is a Lead Free Reduced Pressure Detector Backflow Preventer Assembly designed to protect potable water systems from contamination due to backsiphonage and backpressure.
This compact, modular backflow preventer is specifically engineered to prevent the reverse flow of non-potable fire protection substances into the public water supply. It is approved for horizontal N pattern installation and includes a gallon per minute meter for detecting leaks and unauthorized water usage.
Key Features
- Lead Free Construction: Complies with Lead Free installation requirements with wetted surfaces containing less than 0.25% lead by weight.
- Flood Detection Sensor: Equipped with a SentryPlus Alert® flood sensor on the relief valve to detect excessive water discharges.
- Integrated Supervisory Switch Option: For OS&Y gate valves.
- Compact Modular Design: Offers an extremely compact design, approximately 70% lighter than traditional models.
- Durable Construction: Features Type 304 (Schedule 40) stainless steel housing, sleeve, pins, and fasteners with a Lead Free® bronze body for test cocks.
- Metering Bypass: Detects underground leaks or water theft from the fire sprinkler system.
- Grooved Gear Operated Butterfly Valves: Includes tamper switches for added security.
An add-on connection kit is required to activate the flood sensor for notification. For more information, consult RPAS-A-C(V-OSOO).
Specifications
General
- Model: LFC500N-BFG-G-FS
- Product Type: Reduced Pressure Detector Backflow Preventer Assembly
- Nominal Size: 6 inch
- Configuration: Horizontal, N-Pattern
- Lead Free: Yes (Wetted surface contains less than 0.25% lead by weight)
- Design: Compact Modular
Materials
- Housing & Sleeve: Type 304 (Schedule 40) stainless steel
- End Checks: EPDM, Silicone, Buna-N
- Link Checks: N-Pattern
- Disc Checks: Reversible silicone or EPDM
- Test Cocks: Lead Free® bronze body
- Pins & Fasteners: 300 Series stainless steel
- Springs: Stainless steel
Performance
- Maximum Working Pressure: 175 psi (12.1 bar)
- Temperature Range: 33°F – 110°F (0.5°C – 43°C)
- Flow Sensor: Gallon per minute meter
- Flood Sensor: SentryPlus Alert® technology
Dimensions & Weight (6 inch LFC500NBFG)
- Length: 23 1/8 inches
- Height: 27 7/8 inches
- Width: 20 1/8 inches
- Weight: 101 lb
Certificates & Approvals
- Approved by Foundation for Cross-Connection Control and Hydraulic Research at The University of Southern California (FCCCHR-US)
- AWWA C511-97
- ASSE 1047
- UL Classified and FM Approved
- CSA B64.4
- NSF Certified to NSF/ANSI 61 and 372
- IAPMO
FAQs
What is the primary function of the 6 inch AMES Colt LFC500N-BFG-G-FS?
Is this backflow preventer compliant with Lead Free requirements?
What type of installation is supported for this model?
How does the flood sensor work and what is needed to activate it?
What is the maximum operating pressure and temperature range for this device?
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