Pump with pressure relief system

A pump or rotary equipment features a casing assembly having a region through which high velocity fluid and solids circulate, a chamber that does not have circulating therein the high velocity fluid and solids, an aperture that allows a related-chamber to be in fluidic communication with the region, but also does not have circulating therein the high velocity fluid and solids, and a corresponding aperture to allow the related-chamber to be in fluidic communication with an external region or location outside the casing assembly; and a pressure relief system having a rupture disc assembly with a rupture disc to be received in the corresponding aperture and to close the related-chamber so communication of the related-chamber with the region through which high velocity fluid and solids circulate subjects the related-chamber and the rupture disc to at least a portion of pressure contained within that region and also to release pressure exceeding a predetermined relief pressure of the rupture disc from the related-chamber to the external region or location, and has exhaust piping to attach to the casing assembly, couple the rupture disc assembly in the corresponding aperture, and provide from the related-chamber a path for escaping vapor and solids to be directed to the external region or location where the energy can be dissipated.