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.

bomba de anillo líquido funcionamiento

Operational and design advantages

  • Self-priming and reversible, ideal for closed circuits and aerated fluids.

  • Silent and cavitation-free operation, even in low inlet pressure conditions.

  • Chemical and mechanical resistance for volatile liquids, solvents, or acids.

  • Hygienic and compact design, suitable for food or industrial environments.

  • Quick and easy maintenance using a union clamp and easy access to the seal.

  • Compatibility with CIP/SIP systems, guaranteeing total cleaning without disassembly.

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.

bomba de anillo liquido alimentaria
bomba de anillo líquido para planta quimica

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.

bomba de anillo líquido para aceite de oliva

Frequently Asked Questions

The liquid ring pump can pump mixtures of gas and liquid, maintaining priming even with air in the line, which is not possible with a conventional centrifugal pump.

Clean, aerated, or volatile fluids such as wine, milk, vinegar, solvents, detergents, or light chemical products.

It allows the pumping of liquids that generate bubbles or gases, ensuring a stable flow without interruptions.

Yes. The food versions incorporate a hygienic seal, DIN 11851 connections, and polished surfaces suitable for CIP/SIP.

Periodic cleaning of the mechanical seal and inspection of gaskets. Its removable structure facilitates access to the moving parts.

Yes. The parts in contact with the fluid are made of AISI 316, with the option of Viton or PTFE gaskets and seals.

Yes. It can be configured with a refrigerated mechanical seal and gaskets resistant to high temperatures.

Models from 0.3 to 7.5 kW, with single-phase, three-phase, or direct current configurations, and industrial or sanitary finishes according to the process.

If you need personalized advice, contact us