This 6 inch lead free MasterSeries Reduced Pressure Zone Detector Backflow Preventer Assembly is designed to protect potable water systems from high hazard (toxic) fluids caused by backpressure and backsiphonage conditions in industrial installations and applications.

The assembly is supplied without shutoff valves and includes a flood sensor to detect excessive water discharges from the relief valve.

Main Valve Features

• Features a stainless steel relief valve seat and stainless steel check components for maximum performance and durability.
• Inline serviceable assembly, requiring no special tools.
• Captured modular spring assembly.
• Reversible and replaceable discs.
• Field replaceable seats.
• Ductile iron valve body design.
• Modular and repairable pressure differential relief valve.
• Clapper check assembly.
• Captured O-ring design.

Auxiliary Bypass Features

• Compact design, remaining in main valve assembly profile.
• Inline serviceable 3/4 inch check assembly, no special tools required.
• Field replaceable seat and disc.
• Designed to detect potential underground water leaks and unauthorized water usage.

Corrosion Protection

• The ductile iron body is fused with ArmorTek®, a patented three-part advanced epoxy coating system, engineered to reduce both microbial-induced corrosion (MIC) and general corrosion on exposed metal substrate.

Flood Detection & Alerts

• Includes a flood sensor with SentryPlus Alert® technology on the relief valve for flood detection.
• The sensor, when activated by an add-on connection kit, relays a signal to trigger a multichannel alert (call, email, text) to notify personnel about potential flooding.

NOTICE: An add-on connection kit is required to activate the flood sensor. Without the connection kit, the flood sensor is a passive component that does not communicate with any other device.