Housing & Sleeve Material: Type 304 (Schedule 40) Stainless Steel
Max Working Pressure: 175 psi (12.1 bar)
Temperature Range: 33°F - 140°F (0.5°C - 60°C)
Features integrated flood sensor with SentryPlus Alert® technology
Equipped with grooved gear operated butterfly valves with tamper switch
Extremely compact design for smaller enclosures
Lead Free* construction for potable water systems
Description
The Colt 4 inch Reduced Pressure Zone Backflow Preventer Assembly, SKU F0191415, provides crucial protection for potable water systems against contamination from backsiphonage and backpressure. This lead-free assembly features a Type 304 stainless steel housing and sleeve, reversible elastomer check discs, and grooved gear operated butterfly valves with tamper switches. An integrated flood sensor with SentryPlus Alert technology detects relief valve discharges, and when connected to an add-on kit, can notify personnel of potential flooding. It is designed for horizontal N-pattern installation in health hazard applications, offering robust and reliable performance.
This Colt™ 4 inch lead free reduced pressure zone backflow preventer assembly is designed to prevent the reverse flow of fire protection substances and water of non-potable quality from being pumped or siphoned into the potable water supply due to backsiphonage and/or backpressure. It is ideal for protection in continuous pressure piping applications and at cross-connections identified as health hazards.
The assembly features a flood sensor with SentryPlus Alert® technology to detect excessive water discharges from the relief valve. When paired with an add-on connection kit, the sensor activates to relay alerts for potential flooding events.
Construction
Type 304 (Schedule 40) stainless steel housing and sleeve with groove end connections
Includes two independent Link Check modules with reversible elastomer discs
Equipped with two drip tight grooved gear operated butterfly valves with tamper switch
Bottom mounted pressure relief valve and required test cocks
Flood Sensor Features
Detects continuous discharge from the relief valve
When paired with an add-on connection kit, the sensor relays alerts for potential flooding
Add-on connection kit options include BMS, cellular communication, and the Sensor Control Monitor
Sensor Control Monitor enables integration with BAS via RS-485 Modbus or the Nexa® platform through Wi-Fi
An add-on connection kit is required to activate the flood sensor. Without the connection kit, the flood sensor is a passive component and will not communicate with any other device.
Specifications
Product Type: Reduced Pressure Zone Backflow Preventer
Nominal Size: 4 inch
Housing & Sleeve Material: 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
Valve Type: Grooved Gear Operated Butterfly with Tamper Switch
Configuration: Horizontal, N-Pattern
Temperature Range: 33°F - 140°F (0.5°C - 60°C)
Maximum Working Pressure: 175 psi (12.1 bar)
Wetted Surface Lead Content: Less than 0.25%
Certificates & Approvals
Approved by Foundation for Cross-Connection Control and Hydraulic Research at the University of Southern California (FCCCHR-USC)
AWWA C511-97
ASSE 1013
CSA B64.4
UL Classified (**BFG Only)
FM Approved (**BFG Only)
NSF Certified to NSF/ANSI 61-G
FAQs
What is the primary function of this backflow preventer?
This backflow preventer is designed to protect potable water systems from contamination by preventing the reverse flow of non-potable substances and water due to backsiphonage or backpressure.
Does this assembly comply with lead-free standards?
Yes, this Series C400 assembly features Lead Free* construction, meaning the wetted surface contacted by consumable water contains less than 0.25% of lead by weight, to comply with current installation requirements.
How does the flood sensor work?
The integrated flood sensor with SentryPlus Alert® technology detects excessive water discharges from the relief valve. When an add-on connection kit is installed, the sensor activates to relay multi-channel alerts (call, email, text) to notify personnel about potential flooding events.
What kind of shutoff valves are included with this assembly?
This assembly comes with two drip tight grooved gear operated butterfly valves that include a tamper switch for enhanced security and monitoring.
What are the connection options for the flood sensor?
When activated with an add-on connection kit, the flood sensor can integrate with Building Management Systems (BMS), cellular communication, or a Sensor Control Monitor, enabling connectivity with BAS via RS-485 Modbus or the Nexa® platform through Wi-Fi.
