This 6 inch reduced pressure detector assembly backflow preventer is designed to prevent the reverse flow of fire protection substances and non-potable water into the potable water supply due to backsiphonage or backpressure.

WARNING: It is illegal to use this product in any plumbing system providing potable 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.

Product Overview

• Designed for protection at cross-connections identified as health hazards, such as on fire sprinkler systems and from other contaminants found at the service line entrance.
• Extremely compact design, lighter than traditional backflow preventers.
• Approved for horizontal Z pattern installation.
• Includes a sensor on the relief valve for flood detection and a gallon per minute meter to detect underground leaks and unauthorized water use.

Construction & Features

• The assembly consists of a stainless steel body with a quick access sleeve, two independent torsion spring check modules, a differential pressure relief valve, drip tight shutoff valves, and test cocks.
• Features UL Classified and FM Approved grooved gear operated butterfly valves with tamper switch.
• Housing and sleeve are constructed from 304 (Schedule 40) stainless steel pipe with groove end connections.
• Patented torsion spring check modules provide low-pressure loss and offer ease of serviceability.
• Groove fittings allow integral pipe alignment and easy installation.
• Reversible elastomer discs and replaceable check disc rubber ensure drip tight closure against reverse flow.
• Bottom mounted cast stainless steel relief valve prevents undetected leaks and theft of water from the relief valve spring system.