A system and a method are described for cooling a mold, particularly for expanded polystyrene, by means of jets of water in a depressurized environment. Pumps are used to depressurize the environment and to remove therefrom the steam generated by the jets of water. The pumps are arranged to perform the depressurization by suction directly from a steam-condenser connected to the environment of the mold and having means for cyclically discharging the water condensed in the condensation device.

Un sistema y un método se describen para refrescar un molde, particularmente para el poliestireno ampliado, por medio de los jets del agua en un ambiente despresurizado. Las bombas se utilizan para despresurizar el ambiente y para quitar therefrom el vapor generado por los jets del agua. Las bombas son arregladas para realizar la descompresión por la succión directamente de un vapor-condensador conectado con el ambiente del molde y de los medios el tener para cíclico descargar el agua condensada en el dispositivo de la condensación.

 
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