Why Seals Matter in an Evolving Landscape
How advanced seal technology is protecting critical infrastructure in the energy transition.
John Crane

The global energy and industrial landscapes are at a tipping point. Decarbonization targets, digital transformation and shifting demand patterns are reshaping how power is generated, transported and consumed. Against this backdrop of rapid change, the stakes for reliability, safety and efficiency have never been higher.

Recent high-profile incidents, ranging from plant outages to leaks in critical infrastructure, have underscored what is at risk. A single failure can ripple outward, resulting in millions of dollars in lost revenue, damage to corporate reputation and, most importantly, threats to human safety. In sectors such as oil and gas, power generation and pipeline transport, the cost of downtime is measured not just in financial terms but in lost trust, regulatory scrutiny and even national security implications. In today’s energy ecosystem, “failure is not an option” is no longer a slogan; it is a business reality.

IMAGE 1: A 3D model of a coaxial seal, a critical component designed to help prevent leaks and keep compressors running reliably (Image courtesy of John Crane)
IMAGE 1: A 3D model of a coaxial seal, a critical component designed to help prevent leaks and keep compressors running reliably (Image courtesy of John Crane)

The Shrinking Margin for Error

Operators are being asked to deliver more than ever with fewer allowances for mistakes. A turbine or compressor taken offline for repairs can create weeks of disruption, especially in offshore or remote environments. In an era defined by decarbonization and new fuels, the margin for error is shrinking further.

Every system component, from the largest compressor to the smallest seal, must meet demanding requirements under extreme conditions. For centrifugal compressors, which sit at the heart of many mission-critical applications, reliability is a non-negotiable benchmark.


The Importance of Seals

Among the most overlooked but vital components are separation seals, which ensure the integrity of compressors by isolating dry gas seals and process gas from bearing oil. Their role is simple but essential: prevent contamination, extend equipment life and safeguard uptime.

Traditional radial seals are widely used and cost-effective, but their limitations become apparent under punishing conditions such as misalignment, high-pressure differentials or continuous dry cycles. By contrast, coaxial separation seals generally deliver a more compact, robust design capable of maintaining reliability in these challenging environments.

On offshore platforms, where space is limited and unplanned downtime can cost millions, coaxial designs can improve operational resilience. In long-distance gas pipelines, their reliability helps prevent leaks that could compromise both safety and environmental goals. The selection of sealing technology, once seen as a technical detail, has become a strategic business decision with implications for risk management, sustainability and efficiency.

Preparing for the Next Energy Era

The energy industry is in the midst of profound change. Over the past year, investment in hydrogen has doubled1, driven by governments and private companies eager to scale production2. At the same time, carbon capture, utilization and storage (CCUS) is moving from the margins into the mainstream, now viewed as essential to achieving net-zero goals. These shifts bring new engineering challenges, but they also create opportunities to raise the bar on reliability, efficiency and long-term performance.

For operators, the takeaway is unmistakable: It is no longer enough to plan around the immediate demands of today’s market. Long-term success depends on choices made now, particularly when it comes to engineering. Companies that commit early to advanced solutions will be best equipped to compete in a low-carbon economy. The move toward next-generation sealing systems illustrates how forward-looking design decisions can protect equipment, strengthen reliability and secure business resilience for years to come.


Efficiency, Safety & Scalability

Clean energy applications come with demanding performance requirements. For instance, seals must withstand new gases, higher speeds and tighter tolerances than many legacy designs were built for. In these contexts, the benefits of innovation are tangible.

Collaboration as a Catalyst

Innovation rarely occurs in isolation. Partnerships between industry and academia are vital to solving the challenges of the energy transition. One such example is a collaboration with the University of Sheffield, which supports four Ph.D. research projects in advanced gas compression technologies. Areas of focus include hydrogen-compatible materials, high-speed seal applications and new simulation techniques.

This work illustrates a broader truth: The energy transition will require not only breakthrough technologies but also the cultivation of new talent. By investing in the next generation of engineers, the industry is ensuring it has the skills and ideas needed to address tomorrow’s challenges.

A Resilient, Sustainable Future

As the energy industry reshapes itself, one principle stands firm: Reliability is the anchor that holds everything together. The cost of failure is simply too steep, whether measured in lost revenue, damaged reputation or risks to people and communities. Strengthening seal technology, fostering research partnerships and adapting engineering to new energy demands are all steps that can help build systems capable of withstanding the pressures ahead.

Ultimately, reliability is more than an engineering benchmark. It is what earns the confidence of users, reassures regulators and secures the trust of the public. In today’s high-stakes environment, failure is not an option, and innovation is the only way forward.


References

  1. iea.org/reports/global-hydrogen-review-2024
  2. iea.org/reports/global-hydrogen-review-2023/executive-summary

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