Our liquid ring pump catalog
The FL–AL liquid ring pumps from InoxMIM are part of the FluidMIM line and are specially designed for transferring clean, volatile, or aerated fluids, guaranteeing self-priming, silent, and stable operation.
Thanks to their robust and precise design, these pumps are ideal for applications requiring pumping with low NPSH, minimal cavitation, and the ability to work with gas and liquid mixtures.
Manufactured entirely in AISI 316 stainless steel, FL–AL pumps combine hydraulic performance, durability, and ease of maintenance, offering an efficient solution for CIP cleaning processes, product recovery, transfer of volatile liquids, or low-density fluids.
Their predictable behavior and compact structure make them a reliable alternative for sectors where reliability and hygiene are essential.
Liquid ring pumps
Design and operating principle
Liquid ring pumps are based on a principle of centrifugal balance between the fluid and an internal liquid ring.
During operation, the impeller rotates inside a casing partially filled with fluid, creating a variable compression chamber between the blades and the ring.
This effect generates natural suction (self-priming) that allows the pumping of gas-liquid mixtures or liquids that tend to release gases, without loss of priming or flow interruptions.
The FL–AL range is characterized by its ability to work in low inlet pressure conditions, its stability in continuous operation, and its versatility in the face of different installation configurations.
Its modular construction allows you to choose between different levels of finish, mechanical seals, and connection types, adapting to both industrial and sanitary environments.
Operational and design advantages
Most common industrial applications
Food industry
Used in the transfer of clean, aerated, or volatile liquids, such as milk, whey, must, vinegar, or oils.
They guarantee continuous pumping without priming losses, ideal for loading, transfer, and CIP cleaning processes.
Its sanitary design with DIN connections and hygienic seal facilitates integration into food and dairy production plants.
Chemical industry
Perfect for transferring solvents, inks, detergents, acids, or low-density products, even in the presence of vapors or bubbles.
Its construction in AISI 316 ensures chemical resistance and dimensional stability against corrosive products, while its stable hydraulic behavior reduces the formation of cavitation in long suction lines.
Wine and olive oil industry
Suitable for pumping wine, must, vinegar, and oils, where it is necessary to preserve the properties of the product and avoid turbulence.
Its low-speed operation and reversible capacity facilitate filling, transfer, and emptying of tanks without altering the product.




