The range of actuator positioners available from Orange Instruments now include electric, electro-hydraulic and in-actuator options. These instruments were initially designed for the control of choke and mainline valves in both upstream and downstream applications for the oil and gas industry. Further development, however, means that applications in general engineering can be accommodated, wherever hydraulic actuators are being used for control functions in a wide variety of industrial machinery. All products are suitable for OEM programmes or can be used as retro-fitted devices.