This Colt™ 4 inch double check detector backflow preventer assembly is designed to protect drinking water supplies from dangerous cross-connections, in accordance with national plumbing codes and water authority requirements.
It is ideal for fire line sprinkler systems and other non-health hazard applications, providing protection against reverse flow due to backsiphonage or backpressure while monitoring unauthorized water use.
Primary Use
- Prevents reverse flow of fire protection substances and non-potable water into potable water supplies.
- Monitors unauthorized water use and detects underground leaks through its integral bypass meter.
- Suitable for non-health hazard cross-connections in irrigation, fire line, and industrial processing.
Features
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Extremely compact design, allowing for smaller vaults and enclosures.
- Approximately 70% lighter than traditional designs.
- Housing and sleeve constructed from 304 (Schedule 40) stainless steel for long-term corrosion protection and maximum strength.
- Patented Tri-Link® Check modules provide the lowest pressure loss and unmatched ease of serviceability.
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Groove fittings allow for integral pipeline adjustment.
- Equipped with Outside Stem and Yoke (OS&Y) resilient seated gate valves.
- Features a gallon per minute meter for bypass flow detection.
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Replaceable check disc rubber for easy maintenance.
- May be installed in horizontal, vertical, or N pattern installations.
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. Always consult your local water authority, building, and plumbing codes before installation.
