Pompa a lobi rotativi

In the realm of fluid handling and processing, the rotary lobe pump stands out as a versatile and efficient piece of equipment. SeFluid, a leader in fluid engineering solutions, brings you this comprehensive guide to understanding rotary lobe pumps, their applications, and why they are an essential component in many industries.

What is a Rotary Lobe Pump?

A rotary lobe pump is a type of positive displacement pump where the pumping action is achieved through the rotation of two or more lobes. These lobes rotate within the pump casing without making contact with each other, ensuring minimal wear and tear. The design allows for gentle handling of fluids, making it ideal for sensitive materials.

How Do Rotary Lobe Pumps Work?

The operation of a rotary lobe pump involves the following key steps:

  1. Lobe Rotation: As the lobes rotate, they create expanding volumes on the suction side of the pump. This action draws fluid into the pump chamber.
  2. Fluid Transfer: The fluid is trapped between the lobes and the pump casing, moving towards the discharge side as the lobes continue to rotate.
  3. Scarico: On the discharge side, the lobes mesh, reducing the volume and forcing the fluid out of the pump.

The lobes’ non-contact nature ensures that the pumped fluid is not subjected to shear, making rotary lobe pumps ideal for handling delicate or viscous fluids.


Pompa a lobi rotanti | SeFluid
  • ENERGIA: 0,55-22 kW
  • CAPACITY: 300-4300 m³/h
  • VELOCITÀ: 200-550 rpm
  • MATERIALE: SS304, SS316

Key Features and Advantages of Rotary Lobe Pumps

Azione di pompaggio delicata

Rotary lobe pumps are renowned for their gentle handling of fluids. This characteristic is crucial when dealing with shear-sensitive products such as emulsions, slurries, and biological fluids. SeFluid’s rotary lobe pumps are designed to minimize product degradation and maintain the integrity of the fluid.


These pumps can handle a wide range of viscosities, from low-viscosity solvents to high-viscosity pastes. The ability to pump both clean and abrasive fluids makes them suitable for diverse applications, including food processing, pharmaceuticals, and wastewater treatment.

Design igienico

SeFluid’s rotary lobe pumps are designed with hygiene in mind, featuring smooth surfaces and minimal internal voids. This design meets the stringent sanitary requirements of industries like food and beverage and pharmaceuticals. The ease of cleaning and maintenance further enhances their suitability for hygienic applications.

Durata e affidabilità

The robust construction of the pumps ensures long-term reliability and durability. SeFluid uses high-quality materials and precision engineering to manufacture pumps that can withstand harsh operating conditions, including exposure to corrosive substances and high pressures.

Applications of Rotary Lobe Pumps

Rotary lobe pumps are incredibly versatile and find applications in a wide range of industries. Here are some key sectors where they are indispensable:

Industria alimentare e delle bevande

In the food and beverage industry, maintaining the quality and consistency of products is paramount. This type of pumps are ideal for handling viscous products like yogurt, sauces, and syrups. Their gentle pumping action ensures that the texture and quality of the product are preserved.

Industria farmaceutica

The pharmaceutical industry requires precise and hygienic fluid handling. SeFluid’s rotary lobe pumps are used in the production of vaccines, ointments, and other pharmaceutical products. The pumps’ ability to handle sterile and clean-in-place (CIP) processes makes them invaluable in this sector.

Elaborazione chimica

In chemical processing, the pumps handle a variety of fluids, including acids, bases, and slurries. Their robust design ensures that they can manage aggressive chemicals without compromising performance or safety.

Trattamento delle acque reflue

Rotary lobe pumps play a critical role in wastewater treatment plants. They efficiently transfer sludge and other viscous materials, ensuring the smooth operation of the treatment process. SeFluid’s pumps are designed to handle the demanding conditions of wastewater applications, providing reliable performance and minimal maintenance.

SeFluid: A Leader in Rotary Lobe Pump Technology

At SeFluid, we pride ourselves on our expertise in fluid handling technology. Our rotary lobe pumps are engineered to the highest standards, ensuring superior performance and longevity. We understand the unique needs of different industries and provide tailored solutions to meet those needs.

Innovation and Quality

Innovation is at the core of SeFluid’s philosophy. We continually invest in research and development to bring cutting-edge technology to our rotary lobe pumps. Our commitment to quality ensures that each pump undergoes rigorous testing and quality control before it reaches our customers.

Customer-Centric Approach

We believe in building lasting relationships with our clients. Our team of experts works closely with customers to understand their specific requirements and provide customized solutions. From initial consultation to after-sales support, SeFluid is dedicated to ensuring customer satisfaction.

Comprehensive Support and Service

Our commitment to excellence extends beyond the sale of our pumps. SeFluid offers comprehensive support and service, including installation, maintenance, and training. Our goal is to ensure that our clients get the most out of their rotary lobe pumps, maximizing efficiency and minimizing downtime.

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