This is the landing page for the IMI Critical Engineering site
IMI Critical Engineering is a world-leading provider of critical flow control solutions that enable vital energy and process industries to operate safely, cleanly, reliably and more efficiently.
We design, manufacture and install customised, highly engineered solutions for new plant builds and also provide complete plant lifecycle service support. This ensures that our customers benefit from efficient maintenance, speedy issue resolution and plant optimisation at all times.
We deliver great solutions to our customers through a unique combination of engineering know-how and fluid controls technology. At the heart of our 'Engineering great solutions' ethos is customer value.
The unique combination of our IMI Critical Engineering companies' know-how and worldwide experience underpins our reputation as a leading global supplier to the major energy and industrial process sectors.
In this section you will find the latest IMI case studies, organised by industry, application and industry. Use the drop downs to filter as required.
In this section you will find the latest IMI press releases, archived news, and IMI in Action case studies which highlight our businesses’ innovations and achievements.
Our performance and our ability to harness the Group’s full potential relies heavily on having the right people in the right places at the right time. This means recruiting and developing the best people, who have excellent, relevant skills and who are clearly aligned to both our values and our ambitions.
Please use the Product Finder to search for products by category, sub-category, industry and/or brand. Please use the Search box above for product name search.
IMI STI’s model UP-2 is an analog positioner available in pneumatic and electro-pneumatic versions. The positioner has a heavy duty design making it suitable for use in very harsh conditions. It is used as the control part of the pneumatic valve set in oil and gas, refining, chemical, power, metal production and other fields with automated systems. The UP-2 pneumatic version accepts a 3-15 psi (0.2-1 bar) signal and the electro-pneumatic version a 4-20 mA signal. The positioner is based on the balanced-forces principle with air distribution to the actuator chambers carried out by an internal spool.
UP-2 is designed to be used on linear actuators (with a minimum stroke of 8 mm) or on rotary actuators which use different feedback systems such as the lever or motion converter MC model.
The positioner is a double acting positioner but it can also be used as single acting. It is equipped with a different linear cam (angle up to 270°) to allow use on actuators with different strokes. The cam operating angles and range adjustments are printed on the positioner. Special cam profiles are available on request.
The UP-2 NC 1/4” is available with a bypass valve between the actuator chamber connections. This is built into the change-over system so the actuator action can be changed without having to rebuild the piping.
The positioner is available in different models: the UP2/L (for lever applications), the UP-2/R (for rotary applications). There are different sizes (ND 1/4” or ND 1/2”) and the positioner can come with or without an integrated air-lock device (the AL model), with a lever or bare shaft, standard or Namur.
IMI Critical Engineering, Lakeside, Solihull Parkway, Birmingham Business Park, Birmingham B37 7XZ
© Design Motive