The DEA and DCA valves are provided with elastic metal plates that move without friction and can be equipped with different kinds of dampening. For this feature they are particularly suitable for dry working conditions, for high and variable rotating speed as well as for high temperatures.

Since many years they have been produced in different sizes, the standard sizes ranging from 42 to 217 mm, although it is possible to make larger diameters upon enquiry.

The main applications include air compressors for the PET bottle production as well as compressors for nitrogen, oxygen and carbon dioxide.