In January 2026, John Crane, a business member of Smiths Group plc, announced the 50th anniversary of the breakthrough that changed the way air compressors are sealed. This milestone shows why dry gas has become a popular choice for centrifugal compressors in oil and petrochemicals.
Instead of using oil sealing as a traditional system, the dry-gas filament uses an ultra-thin gas film between the two sides of the filament. The twisted beams on the rotating side create lifting force so that the two sides do not touch each other when the machine runs.
Fifty years of development show that the technology has matured but continues to be improved to meet the requirements of reduced emissions and increased reliability.When upgrading the old compressor from oil debris to dry gas debris, it is necessary to carefully evaluate the air quality, support systems and operating conditions.
World Pipelines (22/01/2026). Article compiled and reinterpreted by SNS-VN; brand name belongs to the owner.