What Is a Labyrinth Seal?
A labyrinth seal is a non-contact sealing device that uses a series of concentric grooves, fins, or chambers to create a long, tortuous path that contaminants must navigate to reach the bearing. Because there is no physical contact between rotating and stationary parts, labyrinth seals produce zero friction and never wear out.
Applications
Turbines, compressors, high-speed spindles, and any equipment where contact seals would overheat or wear prematurely. Our Oil & Gas Case Study used labyrinth seals in the multi-barrier sealing system for centrifugal compressors in Oman.
Frequently Asked Questions
Why use a labyrinth seal instead of a contact seal?
Labyrinth seals have zero shaft contact, meaning zero friction, zero wear, and zero speed limit. They last indefinitely because nothing wears out. They are ideal for high-speed rotating equipment, high-temperature applications, and processes where seal friction drag is unacceptable.