This 3 inch lead free reduced pressure zone 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 and or backpressure. It is ideal for protection in continuous pressure piping applications and at cross-connections identified as health hazards and from other contaminants found at the service line entrance.

Design & Construction

• This assembly without the shutoff valves consists of a short lay length lightweight stainless steel body, test cocks, corrosive resistant stainless steel bottom mounted relief valve, and a patented cam-check assembly.
• Its compact modular design facilitates easy maintenance with a single access cover for in-line repairs.
• The stainless steel body is half the weight of competitive designs, reducing installation and shipping costs.
• The cam-check assembly provides maximum flow at low pressure drop.
• The stainless steel relief valve features a balanced rolling diaphragm to eliminate sliding seals and lower maintenance costs.

SentryPlus Alert® Flood Sensor

• This backflow assembly contains a flood sensor with SentryPlus Alert® technology to detect excessive water discharges from the relief valve.
• This feature alerts for potential flooding events when paired with an add-on connection kit.
• Connection kit options include BMS, cellular communication, and the Sensor Control Monitor which enables integration with BAS via RS-485 Modbus or the Nexa® platform through Wi-Fi.