Alfa Laval SX Rotary Lobe Pump

Product Benefits

  • Low pulsation and gentle pumping
  • Minimise shearing
  • Maximise performance and minimize the risk of contamination


Technical Data

Best choice for transporting

With the SX multi-lobe rotor geometry it offers low pulsation and gentle pumping. This makes it the best choice for transporting sensitive products that require gentle handling to minimize shearing. This EHEDG-approved pump is designed for both Cleaning in Place and Sterilization in Place.

Protecting end-product quality

Low pulsation, low shear and low noise characteristics, while ensuring efficient fluid transfer, are trademarks of the SX pump. This high level of performance has been achieved through a detailed understanding of flows and the exact geometry of the rotors and rotor case. For this Alfa Laval employs Computational Fluid Dynamics (CFD).

Enhanced cleanability

SX rotary lobe pumps are designed with features that maximize performance and minimize the risk of contamination. These include a low-profile rotor nut, hygienic front-loading mechanical seals, defined compression front cover sealing, a fully drainable pump head with a 3° fall angle, and sanitary or ultra-clean surface finishes.

Cleanability is hand-in-hand with low maintenance

Designed for maximum cleanability and ease of access, the SX pump is a low-maintenance solution. Alfa Laval manufactures all pump parts, including the rotor case and high-precision rotors. This facilitates maintenance and guarantees the full interchangeability of spare rotor parts.

For reliable operation and lower maintenance, the robust gearbox construction comes with heavy-duty shafts, torque locking assemblies and taper roller bearings throughout. The gearbox’s universal design provides the flexibility of mounting the pumps with inlet and outlet ports in a vertical or horizontal position.

Supply and delivery

Available in 14 different models, SX rotary lobe pumps are capable of handling a wide variety of viscosity and temperature requirements, flow rates up to 115 m3/h, pressures up to 15 bar and temperatures up to 150°C. A wide range of seals is available to ensure that the right seal is selected for the specific application.

Certification, specification and standards

All SX rotary lobe pumps comply with EHEDG, 3-A, 3.1 and FDA hygienic standards and have ATEX approval for use in explosive environments. For more information, please consult the documentation provided.


The SX range of rotary lobe pumps has been designed for use in wide-ranging applications within the Pharmaceutical, Biotechnology, Fine Chemical and Specialty Food industries. Being certified by EHEDG (European Hygienic Equipment Design Group) as fully CIP cleanable to their protocol, the SX range is ideally suited to applications where cleanability and corrosion resistance is paramount. In addition, the SX pump range also conforms to USA 3-A Hygienic Standard and all media contacting components are FDA compliant.

The SX pump operates with high efficiency, and low shear pumping action for assured gentle handling of delicate and sensitive media. The SX pump range is also classified for use in potentially explosive atmospheres under the ATEX Directive 94/9/EC Group II, Categories 2 & 3, with temperature classification T1 to T4.

The SX range is compact, capable of flow rates up to 115 m³/h and pressures up to 15 bar.

Make An Enquiry

    Information provided on this form will be used for sales follow up and for marketing purposes. You can opt out at any time. Click here to read our privacy policy for full details.
  • This field is for validation purposes and should be left unchanged.

Let's Connect!

Get in touch with our dedicated team. We are here to help!