Seat valves are operated automatically by a single-acting or a double-acting pneumatic actuator. By supplying compressed air, the shaft is moved to place the valve in the "open" or "closed" position. The 180° rotation of the pneumatic cylinder of single-acting actuators allows to have a normally open or normally closed valve.

The divert seat valve is a kind of hygienic single-seat valve pneumatically, which is applied to a wide range of application in the food-processing industry, beverage production, pharmaceutical and fine chemicals industries.