The standard EA series of actuators available from Askco Instruments are available as gear driven crankshaft rotary actuators They may be used with combustion air dampers and a wide variety of low, medium and high torque rotary shaft valve bodies with crankarms. The EA series can accommodate applications requiring position to be held or returned to normal position during power interruptions. Used for two position floating and proportional electric control, these actuators are employed wherever it is desirable to move a load in either direction or to stop it at any point in the stroke. Base models offer a variety of control action, motor voltage and frequency, torque, return action and optional features. Many of these rotary actuator Eurotherm, barber colman actuator, are available from stock for next day delivery.