Alfa Laval SRU-4 Trilobe Lobe Rotary Pump Unit

The Alfa Laval SRU-4 Trilobe Lobe Rotary Pump Unit is Alfa Laval’s core SRU rotary lobe pump configured with Trilobe rotors for gentle, low-shear handling of sensitive process fluids. This positive-displacement pump is designed for hygienic applications and is widely used in dairy, food and beverage, biotechnology, and pharmaceutical industries where media integrity matters. The SRU-4 can be delivered as a bare-shaft pump or mounted on a base plate with a coupling, guard, gear motor and shroud for easy plug‑and‑play installation. In addition to its TriLobe rotor design, the SRU family emphasizes high efficiency and reliable transfer of viscous and particulate-containing media while minimizing contamination risks. The pump is EHEDG-approved and supports both Cleaning in Place (CIP) and Sterilization in Place (SIP), simplifying validation and sanitary cleaning. As part of Alfa Laval’s rotary lobe pump lineup—alongside SX and OptiLobe families—the SRU-4 is built for straightforward disassembly and maintenance, with rotor and seal access designed for quick servicing and reduced downtime.