Valve plates are widely used in the petrochemical and distillation industries, with column diameters ranging from 0.5 to 10 m, with spacing between plates ranging from 170 to 1100 mm, with designs ranging from single- to six-way and with quantities ranging from a few to more than 200. The EDV® plate is also used in vacuum and high-pressure systems. The main advantages of these plates are their ability to provide efficient mass transfer over a wide range of working loads, simple design, low metal consumption and low cost.