The Colt LFC300N 8 inch lead-free double check detector backflow preventer assembly prevents backflow of objectionable pollutants, but not toxic substances, from entering the potable water supply system. It is ideal for use on fire line sprinkler systems to monitor unauthorized water use, and in other non-health hazard applications.

This assembly provides protection at cross-connections identified as non-health hazards and ensures compliance with national plumbing codes and water authority requirements.

Key Features

• Compact modular design with a single access cover for easy maintenance
• Approximately 70% lighter than traditional designs
• Housing and sleeve constructed from 304 (Schedule 40) stainless steel
• Groove fittings allow integral pipeline adjustment
• Patented Tri-Link check valves provide lowest pressure loss
• Unmatched ease of serviceability – no special tools required
• Designed for horizontal, vertical, or "N" pattern installations
• Includes a gallons-per-minute metered bypass to detect underground leaks and unauthorized water use
• Equipped with four test cocks for easy monitoring and testing
• Lead-free construction ensures the wetted surfaces contain less than 0.25% lead by weight

Components

• Features domestic outside stem and yoke (OS&Y) resilient seated gate valves
• Consists of two independent Tri-Link Check modules with reversible elastomer discs
• Bypass assembly includes a meter (gallon or cubic measurement) and a double check valve assembly
• Integrated supervisory switch is an option on each gate valve of the OS&Y model