Norgren Logo
Carl NorgrenIMI Norgren has focused on providing innovation right from our start in the early 20th century when pioneer Carl Norgren founded his air preparation business in his kitchen in Denver, Colorado. He went on to practically invent an entire industry when in 1927 he sketched what was to become the world’s first lubricator.

We continue to strive to be at the forefront of air preparation technology and our world-class products continue to improve performance and productivity.

History & Background

  • In 1972, the Norgren family sold the business to IMI plc, forming the IMI fluid power division. IMI plc traces its heritage back to entrepreneur George Kynoch who opened a percussion cap factory in Witton, Birmingham in 1862.
  • Watson Smith, a specialist in pneumatic pressure control technology based in Leeds, was acquired in 1985.
  • The acquisition of Martonair in 1986 significantly increases the size of IMI’s fluid power division, and contributes significantly to our pneumatic actuator and valve product portfolio. The acquisition of Bristol-based Webber was completed in the same year.
  • In 1996 US-based ISI Automation is acquired and is added to the Norgren group of companies.
  • In 1997 Buschjost and Herion were acquired by IMI and joined the Norgren group of companies.
  • In 1998, IMI acquired KIP, a manufacturer of solenoid valves, level controls and flow switches.
  • In 2004, Fluid Automation System of Switzerland was acquired, a leader in miniature solenoid valves.
  • In 2005, the acquisition of US companies Syron and GT Development further strengthened the Auto In-Plant and Commercial Vehicles product portfolio.
  • In 2007 IMI acquired Kloehn, a leading US provider of specialist pumping and fluid handling systems for the medical sector.
  • In 2008 IMI acquire the Truflo Group, a leading specialist in valves and related flow control products. Thompson Valves, including their Maxseal solenoid valve portfolio, IMF and GHR join the Norgren group of companies.
  • IMI acquire Adsorbent Media Tube (AMT) technology from nano-porous solutions limited (n-psl) in 2013.

As part of a commitment to creating a truly world-class company, IMI brings all of its Norgren business – which includes Buschjost, FAS, Thompson Valves, Kloehn and IMI Webber – into a newly branded division: IMI Precision Engineering.

Need more information?

Contact Us Today!


  • Producing Solenoid Valves for Over Thirty Years
Learn More

IMI Buschjost

  • System Solutions for Liquid and Gaseous Media
Learn More

Excelon Air Preparation

  • Miniature and Large Capacity Units
Learn More

Excelon Plus Air Preparation

  • Safer, Simpler and Faster to Service
Learn More

VR Series Valve Manifolds

  • Compact, Flexible & Modular Valve Manifolds
Learn More

Elion Actuators

  • High-performance ISO standard rod-style electric linear actuators suitable for a variety of industrial applications
Learn More