The 1 1/4 inch Lead Free Reduced Pressure Zone Backflow Preventer Assembly provides crucial protection against backsiphonage and backpressure, ensuring potable water safety. Constructed with a durable lead free copper silicon alloy body, it features NPT connections with Viega ProPress® adaptors for versatile installation. Key features include quarter-turn ball valve shutoffs, two independent check valves, and an internal relief valve. It integrates a SentryPlus Alert® flood sensor to detect excessive relief valve discharge, offering advanced monitoring capabilities when connected with an optional kit. This assembly meets national plumbing codes and is approved by ASSE 1013 and CSA B64.4.
Help Me Connect
Connections
The assembly features NPT inlet and outlet connections, designed for direct threaded pipe connections.
Integrated Viega ProPress® adaptors allow for quick and secure press-fit connections to compatible Viega ProPress® systems.
This 1 1/4 inch Lead Free Reduced Pressure Zone Backflow Preventer Assembly is designed to prevent the flow of polluted water from entering the potable water supply due to backsiphonage and/or backpressure, in accordance with national plumbing codes and water authority requirements.
Its compact modular design facilitates easy maintenance with a single access cover for in-line repairs.
Features
Lead Free copper silicon alloy body for durability and compliance.
Includes a flood sensor with SentryPlus Alert® technology to detect excessive water discharges from the relief valve.
Sensor capable of relaying alerts for potential flooding when paired with an add-on connection kit (sold separately).
Connection kit options include BMS, cellular communication, and the Sensor Control Monitor for integration with BAS via RS-485 Modbus or Nexa® platform through Wi-Fi.
Quarter turn full port resilient seated ball valve shutoffs with tee handles.
Two in-line independent check valves and captured springs for reliable performance.
Replaceable check seats and an internal relief valve for reduced installation clearances.
Single access cover and modular check construction for ease of maintenance.
Specifications
General
Product Type: Reduced Pressure Zone Backflow Preventer Assembly
Nominal Size: 1 1/4 inch
Body Material: Lead Free copper silicon alloy
End Connections: NPT with Viega ProPress (R) adaptors
Valve Type: Quarter turn full port resilient seated ball valve shutoffs
Relief Valve: Internal
Check Valves: Two in-line independent
Access: Single access cover
Performance
Maximum Supply Pressure: 175 PSI (12.1 bar)
Temperature Range: 33°F – 180°F (0.5°C – 82°C) continuous
Flood Sensor
Sensor Technology: SentryPlus Alert®
Detection: Excessive water discharge from relief valve
What is the primary function of this backflow preventer assembly?
This assembly is designed to prevent contaminated or polluted water from flowing back into the potable water supply system, protecting it from backsiphonage and backpressure events.
What material is the body of the backflow preventer made from?
The body is constructed from lead free copper silicon alloy, ensuring durability and compliance with lead-free requirements for potable water systems.
What types of connections does this backflow preventer use?
It features NPT (National Pipe Taper) inlet and outlet connections, which include integrated Viega ProPress® adaptors for both threaded and press-fit installation options.
Does this assembly include a flood sensor, and what does it do?
Yes, it includes a SentryPlus Alert® flood sensor, which is designed to detect excessive water discharge from the relief valve, providing an early warning of potential flooding or system issues.
What are the maximum operating pressure and temperature ratings for this assembly?
The assembly is rated for a maximum supply pressure of 175 PSI (12.1 bar) and can handle continuous water temperatures ranging from 33°F to 180°F (0.5°C to 82°C).
