Severe service is a term that is often used to refer to high pressure drop applications but is also used to describe conditions where the media is abrasive or corrosive. Under these conditions, to be suitable for the processes, special care and attention must be paid to the valve trims so that valve performance is maximized and valve wear minimized. Perforated plugs are typically used on large pressure drop applications to avoid cavitation in liquids and reduce noise levels and valve wear on steam and gas applications