Modern process control valves offer a wide range of features and benefits for industries that require precise control over fluids, steam and other gases. With so many control valves on the market, it is important to establish the features that will deliver the most cost-effective design for a particular application. Damien Moran, Field Segment Manager, Hygienic - Pharmaceutical at Bürkert, looks at some of the basic differentiators as well as some recent design developments.