IMI Critical

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Lot Fourteen, 1A Frome Road
Level 2, Margaret Graham Building
Adelaide SA 5000


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Company Overview

60 Years Naval Marine Legacy

Failure at sea is not an option, and with thousands of valves on a naval submarine or surface ship, defence customers require extreme confidence in their suppliers. This is why over 36 navies worldwide trust and choose IMI Critical Engineering. Our products have been created to withstand the harshest of environments to avoid potentially catastrophic events.

Our product portfolio is unparalleled, harnessing the expertise and engineering excellence of our workforce. We support all submarine propulsion systems, including diesel electric, air independent propulsion (AIP) and nuclear.

A true global manufacturing and engineering through life partner – with customer collaboration at the heart of what we do, this is proven by our long-standing involvement in current and future naval marine programs around the globe. We have supported the Australian Anzac class frigate, Huon class frigate and Collins class submarine through every stage of build and deployment.

Products and Services

IMI Critical Engineering provide a complete suite of fully engineered valves and flow control solutions for all gases and fluids in applications in industries such as oil & gas production, power generation, nuclear, petrochemical, water, metals, pharmaceutical and marine defence.

Major Projects

Other Projects

ANZAC Class Frigates


  • Fabricated Metal Product Manufacturing
  • Specialised Machinery and Equipment Manufacturing