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The SX is Alfa Laval’s premium rotary lobe pump, designed for use in sensitive and ultra-clean applications. With optimized pump head geometry and multi-lobe rotors, SX pumps ensure low-shear operation with minimum pulsation. This makes them the best choice for maintaining the integrity of delicate products.

SX pumps feature front-loading mechanical seals, as well as a profiled gasket system for the highest level of hygienic sealing. Pump hygiene is further improved by a low-profile rotor nut, which enhances the pump cleanability.

Higher surface finishes up to 20 Ra are available, as well as electro-polishing and 3.1 material traceability.
Unit of Measure

Features

N/A CIP and SIP
Our rotary lobe pumps are ideal for both Cleaning in- Place (CIP) and Sterilization-in-Place (SIP) applications.
Easy Seal Retrofit
The seals of our rotary lobe pumps are designed for quick and simple upgrading. Our broad range of seals includes many seal types and configurations, which can be tailored to your need and application.
Gentle, Hygienic Design
With their high-precision rotors and low-shear operation, our rotary lobe pumps ensure the gentle movement of delicate products. The pumps offer a number of features that maximize clean ability, and their construction provides compliance with the world’s leading hygienic standards.
Heavy Duty Gearbox Construction
Our rotary lobe pumps are fitted with a cast iron gearbox incorporating heavy-duty taper roller bearings and torque locking assemblies that allow for easy maintenance and high reliability. The pump rotors are driven by a high-precision involute spline drive.
Improved Drainability
All of our rotary lobe pumps can be drained easily when mounted in vertical port position. In the case of our OptiLobe and SX pumps, cusps are retained in vertical configurations for greater efficiency.
Modular pump design
Our rotary lobe pumps feature a modular construction. This design feature increases flexibility and reduces spare parts inventory.
Standards and Approvals
All of our rotary lobe pumps are compliant with the EHEDG, 3A and FDA hygienic standards. In addition, our SX and SRU pumps have approval for use in explosive environments.
Universal Mounting
To allow high flexibility when fitting the pump into a production line, all of our rotary lobe pumps can be mounted in either a vertical or horizontal port position (with the exception of the larger SX models) .