The Colt 6 inch double check detector 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 or backpressure, in accordance with national plumbing codes and water authority requirements.

It is ideal for protection at cross-connections identified as non-health hazards, such as on fire sprinkler systems and from other contaminants found at the service line entrance. This compact modular design features a single access sleeve for easy maintenance.

Features

• Extremely compact design
• 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 provides the lowest pressure loss
• Unmatched ease of serviceability
• Grooved butterfly valve shutoffs
• May be used for horizontal, vertical, or N pattern installations
• Replaceable check disc rubber
• Includes a gallon per minute meter to detect underground leaks and unauthorized water use
• A WARNING: It is illegal to use this product in any plumbing system providing water for human consumption, such as drinking or dishwashing, in the United States. Before installing standard material product, consult your local water authority, building and plumbing codes.