An installation for treatment of harvested palm fruits using pressurized steam comprises a sterilizer unit and a steam supply unit working in combination. The sterilizer unit includes a vessel (10) having inlet (12) for charging in fruits, steam openings (16a, 16b, 16c)) for receiving steam, outlet (14) for dispensing treated fruits and a pivot (20) for tilting the vessel to various orientations. The steam supply unit includes a shaft (28) fixedly mounted onto the pivot (20), a pipeline (30) connected to end of the shaft and used for supplying steam, a housing (32) connected to and rotatable about the pipeline, a flange (38) to retain the housing in position, and an elbow (54) connected to the housing such that the elbow can supply steam to the vessel from a fixed location.
