IMI CCI
Official website: www.imi-critical.com ↗Control Components Inc (CCI) was founded in 1967 in California to solve a problem ordinary control valves gave up on: extreme pressure letdown where cavitation, noise and erosion destroy conventional trims. Its answer, the DRAG disk-stack trim, forces flow through a staged series of drilled disks, dropping pressure incrementally — the engineering ancestor of nearly every modern multistage anti-cavitation design. Today CCI operates as IMI CCI within IMI plc’s critical engineering division.
The portfolio is concentrated where the duty is hardest: power-station feedwater recirculation and heater drain systems, turbine bypass and steam conditioning stations, desuperheating, and high-pressure letdown in oil and gas. These are valves specified by test rigs and CFD rather than catalogue curves, often with custom disk stacks per project. If your problem statement includes pressure ratios above ~10:1 or flashing feedwater, this is the family of solutions you end up studying.
Representative product lines
| Series | Type | Notes |
|---|---|---|
| DRAG disk-stack trims | Trims | Staged pressure drop across drilled disks — the anti-cavitation benchmark |
| Steam conditioning | Systems | Combined pressure-reducing and desuperheating stations |
| Turbine bypass | Systems | Fast-acting bypass trains for power-plant transient duty |
| Heater drain / recirc | Duty | Feedwater heater drain and pump minimum-flow control |
Where they fit
Fossil and nuclear power, solar thermal, oil and gas high-pressure letdown, FPSO topsides — wherever pressure ratios are extreme and cavitation is the design driver.