The Colt LFC300N 4 inch Lead Free Double Check Detector Backflow Preventer Assembly is designed to prevent the reverse flow of pollutants into potable water systems. Ideal for non-health hazard applications, particularly on fire protection sprinkler systems, it monitors unauthorized water use with its gallons-per-minute metered bypass. This assembly features a durable 304 stainless steel housing, domestic OSY resilient seated gate valves, and patented Tri-Link checks for low-pressure loss. Its compact, lightweight design allows for horizontal, vertical up, or N pattern installations. Certified to UL, FM, AWWA C510-97, CSA B64.4, and NSF 61. Item number 0124612.
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Main Connections
The main assembly housing features groove end connections for easy integration into piping systems.
Bypass Connections
The bypass assembly is equipped with ASME/ANSI flanged end connections.
Shutoff Valves
This assembly utilizes domestic OSY (Outside Stem and Yoke) resilient seated gate valves for reliable system control.
This Colt 4 inch lead free double check detector backflow preventer assembly is designed to prevent the reverse flow of pollutants and water of non-potable quality from entering the potable water supply system. It is primarily used on fire line sprinkler systems to monitor unauthorized water use and in other non-health hazard applications, protecting against backflow caused by backsiphonage or backpressure.
The OS&Y model includes an option for an integrated supervisory switch on each gate valve, enhancing system monitoring.
Features
Extremely compact design that is approximately 70% lighter than traditional designs.
Constructed with a 304 (Schedule 40) stainless steel housing and sleeve for durability.
Groove fittings allow for integral pipeline adjustment, simplifying installation.
Features a patented Tri-Link check design for the lowest pressure loss.
Offers unmatched ease of serviceability; no special tools required for maintenance.
Equipped with domestic OSY (Outside Stem and Yoke) resilient seated gate valves.
Approved for horizontal, vertical, or N pattern installations.
Includes a gallons-per-minute metered bypass to detect underground leaks and unauthorized water use.
Contains replaceable check disc rubber for extended lifespan and easy maintenance.
This product is lead free, meaning the wetted surface contacted by consumable water contains less than 0.25% of lead by weight.
Approved By: Foundation for Cross-Connection Control and Hydraulic Research at The University of Southern California (FCCCHR-USC)
Certification: AWWA C510-97
Certification: UL Listed
Certification: FM Approved
Certification: CSA B64.4
Certification: NSF Certified to ANSI/NSF 61
Certification: IAPMO
FAQs
What is the primary application for the Colt LFC300N 4 inch Double Check Detector Assembly?
This assembly is designed for non-health hazard applications, primarily on fire line sprinkler systems to prevent backflow of pollutants. It also monitors for unauthorized water use or underground leaks.
What type of connections does the main assembly and bypass assembly feature?
The main assembly housing features groove end connections. The bypass assembly is equipped with ASME/ANSI flanged end connections for secure integration.
What materials are used in the construction of the LFC300N?
The housing and sleeve are made of 304 (Schedule 40) stainless steel. Tri-Link checks are Noryl® and stainless steel, with reversible silicone or EPDM check discs. Test cocks are lead-free bronze.
Is the Colt LFC300N 4 inch backflow preventer assembly lead-free?
Yes, this product is designated as lead-free. The wetted surface that contacts consumable water contains less than 0.25% lead by weight, meeting applicable standards.
What are the approved installation orientations for this device?
The LFC300N is approved for installation in horizontal, vertical up, or N pattern configurations, offering flexibility for various site requirements.
