6 C400Z-BFG-FS
Item Number: F0191483Brand - Ames
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- 6 inch Reduced Pressure Zone Backflow Preventer
- Weight: 200.0 lb
- Lead Free Construction
- Z-Pattern Horizontal Installation
- Flood Sensor with SentryPlus Alert® Technology
- Grooved Gear Operated Butterfly Shutoff Valves with Tamper Switch
- Type 304 Stainless Steel Housing and Sleeve
- Maximum Working Pressure: 175 psi
- Extremely Compact Design
Description
Description
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Connections
- This backflow preventer features groove fittings for both inlet and outlet connections, which simplify installation and allow for integral pipeline adjustment.
Flood Sensor Connectivity
The integrated flood sensor with SentryPlus Alert® technology is a passive component until an add-on connection kit is utilized. Activating the sensor for alert relays requires one of the following connection kit options:
- BMS (Building Management System) communication
- Cellular communication for remote alerts
- Sensor Control Monitor for integration with BAS via RS-485 Modbus or the Nexa® platform through Wi-Fi.

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Additional Details
The Ames Fire & Waterworks Colt™ 6 inch reduced pressure zone (RPZ) backflow preventer assembly is designed to prevent the reverse flow of fire protection substances and non-potable water into the potable water supply due to backsiphonage or backpressure. This lead-free assembly is suitable for health hazard applications and continuous pressure piping, approved for horizontal Z-pattern installation.
This C400Z-BFG-FS model integrates a flood sensor with SentryPlus Alert® technology to detect excessive water discharges from the relief valve. When an add-on connection kit is used, the sensor activates to relay alerts, notifying personnel of potential flooding events.
Key Components
- Stainless steel body with quick access sleeve for durability.
- Two independent Link Check modules and a bottom-mounted differential pressure relief valve.
- Grooved gear operated butterfly valves with tamper switches for shutoff.
- Lead-Free* test cocks for easy maintenance.
Features & Benefits
- Lead Free* construction, with wetted surfaces containing less than 0.25% lead by weight.
- Includes a flood sensor with SentryPlus Alert® technology for discharge detection.
- Allows for integration with BMS, cellular communication, or Sensor Control Monitor (requires add-on kit).
- Extremely compact design, up to 70% lighter than traditional models.
- Durable Type 304 (Schedule 40) stainless steel housing and sleeve.
- Groove fittings for integral pipeline adjustment and ease of installation.
- Patented link check design for lowest pressure loss.
- Unmatched ease of serviceability with torsion spring check modules and reversible check disc rubber.
- Configurable for horizontal Z-pattern installation.
Specifications
- Brand: Ames Fire & Waterworks
- Product Type: Reduced Pressure Zone (RPZ) Backflow Preventer
- Model: C400Z-BFG-FS
- SKU: F0191483
- Size: 6 inch
Performance
- Maximum Working Pressure: 175 psi (12.1 bar)
- Temperature Range: 33°F - 140°F (0.5°C - 60°C)
Materials
- Housing & Sleeve: Type 304 (Schedule 40) Stainless Steel
- Elastomers: EPDM, Silicone, Buna 'N'
- Link Checks: Noryl®, Stainless Steel
- Check Discs: Reversible Silicone or EPDM
- Test Cocks: Lead Free* Bronze Body
- Pins & Fasteners: 300 Series Stainless Steel
- Springs: Stainless Steel
- Lead Content: Wetted surface contains less than 0.25% of lead by weight
Configuration & Connections
- Installation Pattern: Z-Pattern Horizontal
- Shutoff Valves: Grooved Gear Operated Butterfly Valves with Tamper Switch
- Inlet/Outlet Connections: Grooved
Dimensions (6 inch C400NBFG, C400ZBFG)
- Overall Length (A): 35 1/4 inches (895 mm)
- Width (G): 35 1/4 inches (895 mm)
- Height (H): 20 1/2 inches (521 mm)
- Centerline to Bottom (J): 13 1/2 inches (343 mm)
- Centerline to Top (M): 27 1/4 inches (692 mm)
- Depth (P): 15 inches (382 mm)
Weight
- Unit Weight: 160 lbs (73 kg)
Certifications & Approvals
- ASSE: 1013
- AWWA: C511-97
- FCCCHR-USC (Foundation for Cross-Connection Control and Hydraulic Research at The University of Southern California)
- UL Classified
- FM Approved
- NSF: B64.4, Certified to NSF/ANSI 61-G
FAQs
What is the primary purpose of this 6 inch reduced pressure zone (RPZ) backflow preventer?
Does this backflow preventer include a flood sensor?
Is an additional component required for the flood sensor to send alerts?
What types of connection options are available for the flood sensor alerts?
What does "Lead Free" construction mean for this product?
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