Compressor Seals

Compressor seals are industrial components designed to mimimise leaks, maintain system efficiency, and ensure the safe operation of equipment like centrifugal compressors. They achieve this by creating a reliable barrier between rotating and stationary components, reducing the risk of gas or fluid escaping while also optimising operational performance.

As the inventor of dry gas seal technology, John Crane has more installations in turbomachinery products than any other vendor. Our product portfolio of compressor seals—either dry gas seal seals or separation seals - covers any application and provides low-risk solutions alongside optimal performance and reliability. John Crane compressor seals are built to meet all international and customer standards, including API 692, and are trusted across industries such as Oil and Gas, Petrochemicals, and renewable energies. With over five decades of engineering expertise, our sealing technology will remain state-of-the-art, now and in the future.

John Crane also offers comprehensive training programmes for seals, designed to equip your team with the skills to maximise equipment reliability and performance. Our Mechanical Seal Reliability Programme helps you to optimise operations and reduce downtime, while John Crane Sense provides advanced condition monitoring to predict maintenance needs effectively. John Crane can also provide retrofit solutions that can modernise older systems for high performance and extend the life of your compressors. The payback period of a retrofit can be quickly evaluated using John Crane’s exclusive Life Cycle Cost Calculator.

Our numerous Centers of Excellence are close to multiple markets, and an unmatched service network will ensure support anytime, anywhere.

Compressor Seals Products

Showing 1–10 of 10 Products

Type 28AT

Non-contacting Gas Seal for Turbo Compressors

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Type 28AT: The original gas seal, with a design pedigree stretching back over 30 years and evolving gradually, installed and...

Aura® 120NS

Narrow Section Dry Gas Seal

Aura120ns

Do you want to retrofit to the latest gas seal technology? Aura® 120NS eliminates oil lubrication and the resulting need to address methane that has become…

Type 28XP

Non-contacting Gas Seal for Turbo Compressors

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Type 28XP: Possibly the most popular seal in the range today, the Type 28XP builds on the 28AT design and...

Aura® 220

The Next Generation of John Crane Gas Seals

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Aura 220 reduces operational and transactional costs using a patented polymeric sealing device.

Type 28EXP

Non-contacting Gas Seal for Turbo Compressors

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Type 28EXP: The product for the most challenging and hostile environments with proven and independently audited performance to 425 bar(g)....

Type 28ST

Non-contacting Gas Seal for Steam Turbines

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Type 28ST combines proven rotating groove technology and high-temperature secondary seals to reduce steam leakage by nearly two orders of...

Type 28VL

Non-contacting Gas Seal for Vaporizing Liquids

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Utilizing proven spiral groove technology, the Type 28VL harnesses the rotational energy of the pump shaft to vaporize the process fluid at a controlled rate…

Type 83

Separation Seal (Contacting Technology)

Type 83 CM5D0133

The Type 83 is a dual-segmented carbon bushing assembly designed to prevent the migration of bearing oil to the dry...

Type 93FR

Separation Seal (Non-contacting Technology)

Type 93FR

The Type 93FR is a non-contacting carbon bushing designed to protect dry gas seals from bearing oil ingress. Segments are...

Type 93LR

Segmented Lift-off Carbon Bushing (Non-contacting) Separation Seal

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The Type 93LR is a non-contacting segmented bushing seal with a balanced lift-off carbon design that minimizes the gas consumption in both pressure and flow…

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