The Alfa Laval FM-OS sanitary centrifugal pump is built to provide a reliable and cost-effective transfer solution for acidic products and other sensitive media. At its core, the pump features a robust casing, shaft, and impeller manufactured from W. 1.4404 (AISI 316L) stainless steel. This high-grade material selection ensures superior corrosion resistance, making the unit suitable for use in aggressive environments where standard steel might fail. The design is rounded out with stainless steel screws, nuts, and a high-quality yoke and adapter, maintaining total material integrity throughout the assembly.

Acid-resistant pump construction for aggressive media

To solve the challenge of handling corrosive or liquids, the FM-OS utilizes its AISI 316L wetted parts to prevent contamination and premature wear. The pump maintains a consistent flow for capacities up to 30 m3/h and handles differential pressures up to 2 bar at 50Hz. This performance profile is specifically tuned for lower-volume processes that still demand the same hygienic rigor as large-scale production lines. Whether transferring ingredients or managing small-batch processing, the FM-OS provides a stable, predictable flow.

Hygienic shaft seal and sealing options

Sealing integrity is critical in any hygienic application. As standard, the FM-OS pump is equipped with a single mechanical shaft seal designed for easy maintenance and reliable operation. For more demanding processes where the product may crystallize or where extra cooling is required, a single flushed mechanical shaft seal is available as an option. The flexibility in elastomer choice—including EPDM, FPM, or FEP—allows the pump to be tailored to specific chemical profiles and temperature requirements ranging from -10°C to +140°C.