Type 1: Turbine The large diameter manual valves and the valves used in high pressure applications come equipped with a reduction gear to ease the operation. Manual valves can also be fitted with a chain wheel and extended stem. Type 2: Electric actuator ELECTROMECHANICAL ACTUATORS (E) The standard electromechanical actuator types are AUMA Norm SA-series and Rotork IQ-series actuators equipped with build-in limit switches and manual handwheel. The standard voltage is 380V 50Hz, others on request. Type 3: Electromechanical actuator Electric linear actuator Electromechanical actuator with electronic positioner (EO) The standard actuators are Auma Norm SA-series with RWG, Auma Matic SAM series or Rotork IQ-series. The standard incoming signal for the electromechanical positioner is 4-20 mA. All electromechanical actuators are supplied complete with manual override. Type 4: Pneumatic actuators WIDE VARIETY OF PNEUMATIC ACTUATORS (A) The pneumatic actuator is a double acting cylinder. The standard supply pressure for the pneumatic cylinder is min. 6 bar. The cylinder size is determined according to the process line pressure. The pneumatic actuator is also available in special materials for aggressive conditions.