Backflow preventer for hose connection type HA216 3/4 inch 149B2161

Backflow preventer – protection of the installation and safety of use

This backflow preventer, designed for mounting on the hose connection, is a key element in protecting the water installation from contamination and backflow. It belongs to the HA family, characterized by reliability and effective operation. The device empties the line behind the check valve after the flow stops, minimizing the risk of bacteria and contamination development.

Construction and materials – durability and resistance

The body of the isolator is made of brass (CuZn39Pb3 - CW614N) with a chrome finish, which ensures corrosion resistance and long-term operation. Seals and membrane are made of NBR (nitrile), guaranteeing tightness and compatibility with various media. The valve has a membrane construction, which translates to quiet operation and minimal pressure loss. The pressure class of the device is PN 10, and the maximum operating temperature is 65°C.

Application and compliance with standards – versatility and safety

The HA216 isolator is used in water installations where protection against backflow and contamination is required. It is ideal for garden irrigation systems, connecting household appliances to the water supply, and other applications requiring protection against water backflow. The device is designed to operate in a vertical position (flow down) with clean liquids. It meets the requirements of PN-EN 14454 standard for backflow prevention valves and ISO 228 and NF E 03-005 standards for threaded connections. The nominal diameter is 3/4 inch (DN20), and the connection length is 41 mm.