Since its foundation in 1960, IMI STI has focused on the design, development and production of
complete actuation systems for the operation of industrial valves in the most demanding
applications and processes across the world.
IMI STI is now an international leader in valve actuation. We design and manufacture complete
actuation systems, which can be fully customised to meet customer needs, applications or
processes. We offer a diverse range of valve actuation (both pneumatic or hydraulic) products
including linear and quarter turn actuators, smart and traditional positioners, and a full range
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1961 First control valve
1965 First Italian Patent
1970 Development of several pneumatic actuators
1975 First international patent
1985 Focused on actuators and positioners
1993 Range of spring return actuators
1995 ISO 9001 quality certification
2002 Acquired by IMI Plc
2004 QuickTrak positioning system
2008 FasTrak high performance positioner
2012 Development of RT series
2014 Moved into present location in Levate
The story continues...