Valve automation is need of the process industry and Rotary Actuator is key element of valve automation. Schrader Duncan Limited launches �MaxFlow� range of Pneumatic Rotary Actuators. These actuators are available in spring return Single Acting as well as Double Acting models. Torque out put range is from 3 Nm To 4000 Nm for 0� to 90�, operating pressure range from 3 to 8 Bar. These are compact design actuators with standard mounting interface.