The Colt™ 4 inch reduced pressure detector backflow preventer assembly is engineered to prevent the reverse flow of fire protection substances and non-potable water into the potable water supply, addressing backsiphonage and backpressure risks.

It is ideal for cross-connections identified as health hazards, such as fire sprinkler systems and other contaminants at the service line entrance.

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 or using this industrial product, consult your local water authority, building and plumbing codes.

Features and Benefits

• Features a flood sensor with SentryPlus Alert® technology to detect continuous discharge from the relief valve, with add-on connection kit options for extended monitoring.
• Composed of a 304 (Schedule 40) stainless steel body with a quick access sleeve, torsion spring check valves, and outside stem and yoke resilient seated gate valves (OSY).
• Includes a corrosive resistant bottom-mounted pressure relief valve and lead-free bronze test cocks.
• Furnished with a cubic feet per minute meter to detect underground leaks and unauthorized water use.
• Groove couplings allow for easy installation and pipe alignment.
• Integrated supervisory switch available as an option on each gate valve of the OS&Y model.