The Colt 4 inch Lead Free Reduced Pressure Detector Backflow Preventer Assembly, model LFC500-OSY-C-FS, is designed to protect potable water systems from contamination by backsiphonage and backpressure. Ideal for health-hazard cross-connections like fire sprinkler systems, it features a durable Type 304 stainless steel body and OSY resilient seated gate valves. This compact assembly includes a cubic feet per minute meter for leak detection and an integrated flood sensor with SentryPlus Alert® technology, which signals excessive relief valve discharges. An add-on connection kit activates the sensor for remote flood monitoring via BAS or Wi-Fi. Item F0124635.
Help Me Connect
Connections
This assembly features OSY (Outside Stem and Yoke) resilient seated gate valves for shutoff control.
The main housing incorporates groove fittings designed for integral pipeline adjustment, ensuring flexibility during installation.
The bypass assembly includes a cubic feet per minute meter for monitoring water flow and detecting leaks.
Compatibility
The integrated flood sensor with SentryPlus Alert® technology requires an add-on sensor connection kit to become active and relay alerts.
Connection kit options allow for integration with Building Automation Systems (BAS) via RS-485 Modbus or the Nexa® platform through Wi-Fi connectivity.
This Colt™ 4 inch lead free reduced pressure detector backflow preventer assembly protects potable water systems from contamination due to backsiphonage and backpressure.
It is specifically designed for health-hazard applications, such as fire sprinkler systems and at service line entrances where cross-connections pose a risk of contamination from non-potable water or fire protection substances.
Key Features
Extremely compact design, 70% lighter than traditional designs.
Housing and sleeve constructed from Type 304 (Schedule 40) stainless steel for durability.
Features OSY (Outside Stem and Yoke) resilient seated gate valves that are UL Classified and FM Approved.
Equipped with groove fittings for integral pipeline adjustment.
Patented link check design ensures lowest pressure loss and unmatched ease of serviceability.
Includes a cubic feet per minute meter for detecting underground leaks and unauthorized water use.
Integrated flood sensor with SentryPlus Alert® technology detects excessive water discharges from the relief valve.
Flood alert feature activated by an add-on sensor connection kit to relay alerts for potential flooding events.
Add-on sensor connection kits enable integration with BAS via RS-485 Modbus or the Nexa® platform through Wi-Fi connectivity for maintenance alerts.
Lead Free* construction ensures the wetted surface contains less than 0.25% lead by weight.
Notice: 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.
Pins & Fasteners Material: 300 Series Stainless Steel
Springs Material: Stainless Steel
Bypass Meter: Cubic Feet per Minute Meter
Flood Detection: Integrated Sensor with SentryPlus Alert® Technology
Temperature Range: 33°F - 110°F (0.5°C – 43°C)
Maximum Working Pressure: 175 psi (12.1 bar)
Certificates & Approvals
Approved by the Foundation for Cross-Connection Control and Hydraulic Research at The University of Southern California (FCCCHR-USC)
AWWA C511-97
ASSE 1047
CSA B64.4
UL Classified
FM Approved
NSF Certified to NSF/ANSI 372
FAQs
What is the primary purpose of the Colt LFC500 Reduced Pressure Detector Backflow Preventer?
Its primary purpose is to protect potable water systems from contamination caused by backsiphonage and backpressure, making it suitable for health-hazard applications like fire sprinkler systems.
What material is the main body and sleeve of this backflow preventer made from?
The entire valve body and closure sleeve are manufactured from durable Type 304 (Schedule 40) stainless steel.
How does the integrated flood sensor function?
The flood sensor features SentryPlus Alert® technology to detect continuous discharge from the relief valve. When paired with an add-on connection kit, it can relay alerts for potential flooding events via BAS or Wi-Fi.
Does this backflow preventer detect water leaks?
Yes, it comes furnished with a cubic feet per minute meter in its bypass assembly, which is designed to detect underground leaks and unauthorized water use from the fire sprinkler system.
Is this backflow preventer assembly lead-free?
This is a Lead Free* assembly. The wetted surface of this product that contacts consumable water contains less than 0.25% of lead by weight, complying with Lead Free* installation requirements.
