Press Release Summary:
Based on abradable technology, Tertiary Seals for centrifugal compressors feature HalarÂ® ECTFE coating, which consists of TeflonÂ®-based material that is applied on stator parts using thermal spray techniques. Design incorporates stationary component that is abraded by rotating part, which creates tight clearances required for minimized leakage. Product can be retrofitted to existing standard labyrinth seals as well as tertiary seals supplied by other manufacturers.
Original Press Release:
New Compressor Seals From GE Meet Demands of LNG Applications
FLORENCE, ITALY - June 13, 2007 - A new abradable tertiary seal for centrifugal compressors, designed to meet demanding operating requirements such as LNG and refinery applications, is being introduced by GE Oil & Gas.
The new product can be retrofitted to existing standard labyrinth (laby) seals as well as tertiary seals supplied by other manufacturers. It features minimum clearances to reduce barrier gas (nitrogen) consumption.
The seal is based on abradable technology developed by GE Oil & Gas and GE Global Research and featuring Halar® ECTFE coating, a Teflon-based material that is applied on stator parts using thermal spray techniques.
Proven in challenging environments, the technology can operate in very dry nitrogen conditions, such as those required for LNG applications. "This type of tough, resistant coating has produced good results when applied to components used in particularly aggressive environments," said Jeff Nagel, Vice President Global Services of GE Oil & Gas.
The basic design of the new seal incorporates a stationary component that is abraded by a rotating part, which creates the tighter clearances required for reduced leakage. In turn, that leads to nitrogen consumption levels two-thirds lower than those of a standard laby seal and comparable to a no-contact carbon seal.
The new seal is available immediately for commercial applications. It has been successfully tested in some major LNG projects in the United Arab Emirates.
About GE's Oil & Gas business
GE's Oil & Gas business is a world leader in advanced technology equipment and services for all segments of the global oil and gas industry. Based in Florence, Italy, the company offers complete solutions for production, LNG, transportation, storage, refineries, and petrochemicals, as well as pipeline integrity solutions including pipeline inspection and pipeline asset management. Through its recent acquisition of VetcoGray, GE Oil & Gas has added products, systems and services for onshore and offshore drilling, completion and production to its portfolio.
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