ABB TPS Series
Produced from 1996 to 2015 with pressure ratios up to 5.2:1, TPS is ABB's medium-speed compact platform, switching to internal plain bearings fed by engine lube oil. Three thermodynamic trims cover the range: -D as the baseline stage, -E for a higher-pressure wheel profile, and -F as the top-tier multi-piece radial configuration.
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