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Process automation
IMI Z+J technician inspects large industrial isolation valve assembly in workshop.
## The IMI Z&J product range provides you with high performance isolation valves for the refining, petrochemical and metals industries. Our expert engineers and advanced manufacturing methods mean that we can create tailored technologies that meet your toughest temperature and cycling demands.
Industrial refinery with tall metal structures behind a field of yellow flowers under a clear blue sky.

Downstream applications

Optimising refinery and petrochemical performance

Our engineering experts can draw on many years of industry experience and proven technologies that reduce your downtime and improve control across your toughest refinery and petrochemical processes.

Fluidised catalytic cracking

Stability and control for your FCC process, with valves designed to handle high temperatures and pressures in critical refinery operations.

Coking applications

Reliable isolation for delayed coking units, helping reduce unplanned downtime and maintain continuous, consistent processing.

Ethylene production

Transfer line isolation, bypass and steam generation valves that enable stable, high performance ethylene production.

Other critical processes

From dehydrogenation units to IsoSiv and TIP systems, our valve solutions support safe, efficient performance across your operations.

Featured products

FCCU Flue Gas Isolation Goggle Valves

IMI Z&J

FCCU Flue Gas Isolation Goggle Valves

Delayed Coking Bottom Unheading Device

IMI Z&J

Delayed Coking Bottom Unheading Device

Iron & Steel Two Lever Valve

IMI Z&J

Iron & Steel Two Lever Valve

HPCU - Compact FCC Hydraulic Power Control Unit

IMI Z&J

HPCU - Compact FCC Hydraulic Power Control Unit

Delayed Coking Top Unheading Valve

IMI Z&J

Delayed Coking Top Unheading Valve

Delayed Coking Bottom Unheading: Compact Design

IMI Z&J

Delayed Coking Bottom Unheading: Compact Design

Iron & Steel Isolation Goggle Valve

IMI Z&J

Iron & Steel Isolation Goggle Valve

Wedge within Wedge Isolation Valve

IMI Z&J

Wedge within Wedge Isolation Valve

Ethylene Transfer Line and Decoking Valve

IMI Z&J

Ethylene Transfer Line and Decoking Valve

FCCU Fractionator Isolation Valve

IMI Z&J

FCCU Fractionator Isolation Valve

Industries

Solutions for key industries worldwide

You can trust IMI Z&J valve technologies to deliver you outstanding performance in your most critical applications across the energy and process industries.
Offshore oil and gas platform with cranes, pipelines, and exhaust stacks under a clear blue sky.

Oil and Gas

Petrochemical facility with red-and-white towers, flares, yellow process piping and access platforms under blue sky.

Petrochemicals

Molten metal pouring from large crucible in industrial facility with sparks and flames.

Metals

Refinery and Petchem Valves

Ethylene Transfer Line and Decoking Valves with actuators and flanged bodies for severe service.

Blast Furnace Valves

IMI Iron & Steel Isolation Goggle Valve with central aperture and segmented housing.
Molten metal pouring from electric furnace with suspended ladle in steel production facility.

Metals specialisms

Reliable isolation for blast furnace operations

Blast furnace processes demand valves that can survive intense heat, pressure and abrasive conditions. IMI engineers bring deep process knowledge and proven IMI Z&J technologies to deliver isolation solutions that stand up to these extremes—helping you maintain stable flow, protect critical equipment and extend campaign life.
Interior of IMI facility in Düren producing IMI Z&J severe service isolation valves.

Customised solutions

Tailored to meet your application needs

Engineering experts at our technology centre can draw on their application and systems knowledge to develop tailored solutions using the IMI product range to meet your application needs.

FAQ

Need support for high-temperature isolation applications?

Connect with IMI for guidance on existing equipment, new requirements, servicing or replacement needs across refining, petrochemical and metals applications.
IMI engineer stands with arms crossed in front of CAD screens displaying engineering designs.