Xylem expands its top-entry agitators

Xylem, the global water technology company, has expanded its range of top-entry agitators with the launch of a new and versatile model suitable for a wide range of mixing scenarios.

The Flygt 4840 top-entry agitator can be used in a variety of industries, including municipal wastewater, municipal potable water, biogas and agriculture, as well as food and beverage.

Its portfolio of top-entry agitators are most suited for nutrient removal and can be specifically used for sludge handling, anaerobic zones, denitrification, flocculation, heat transfer and slurry handling.

The Flygt 4840 agitator is a dry-installed mixer with the motor and controls located outside of the liquid being mixed. The result is a low-maintenance agitator, easily accessible for servicing, as well as more hygienic for operators. It also offers minimal power consumption thanks to lower revolutions per minute (RPMs).

Per Selenius, Xylem’s top-entry agitator product manager, said: “This new top-entry agitator is extremely versatile and can be used in a wide range of mixing scenarios, including sludge pits and secondary treatment. It can also be used as a flash mixer and can be configured with either one, two or three impellers.”

Xylem’s Flygt 4840 top-entry agitator features a three-blade, hydrofoil impeller, available in high-alloy steel, capable of withstanding high temperatures and in a diameter of 0.8 to 1.5 metres. As an alternative option, the agitator may also be configured using the signature Flygt yellow ‘banana blade’ impellers; the backswept design of the blades ensures clog-free operation.  

It features adjustable positioning which optimises bulk flow and prevents the formation of surface scum, while a bottom support bearing securely fixes the shaft to the basin floor, eliminating agitator and bridge vibration and maintaining stability.