Compression
Dry Gas Seal (DGS)
A non-contacting gas seal arrangement commonly used on centrifugal compressors to limit process-gas leakage along the shaft.
Why it matters
Seal-gas quality, differential pressure and leak-off behavior are important reliability and containment indicators.
Related technical topics
Rotating Equipment · Advanced
Dry Gas Seals for Centrifugal Compressors
Study the purpose, arrangement and monitoring of dry gas seals used to limit process-gas leakage from centrifugal compressors.
Rotating Equipment · Intermediate
Centrifugal Compressors in LNG Service
Understand the operating principles, performance limits, major components, auxiliaries and protection philosophy of centrifugal compressors used in LNG and gas-processing facilities.
Rotating Equipment · Advanced
Compressor Performance Monitoring
Understand how operators and engineers use pressure, temperature, flow, vibration and map position to evaluate centrifugal-compressor performance and degradation.