Taking the knowledge gained from its MPP range of multistage multiphase pumps, Sulzer Pumps developed a single-stage hydraulic design, taking advantage of the well proven OHH bearing and shaft/seal assemblies. Tests in the multiphase lab in Winterthur (CH) confirmed the new design’s performance. The first units of this single-stage multiphase pump have now been sold and are currently in production for 2 separate customers. The new MPP-OHH pump opens up new process options for the market, as it is ideal for processes with gas content of up to 40% where separation is not desirable or practical.