Since their introduction in the mid '70s, dry gas
seals have revolutionized axial and centrifugal compressor
sealing. Dry gas seals are installed in virtually every new
compressor. Compared to traditional wet sealing, dry gas
seals offer the following commercial advantages:
On shutdown, pressurized containment of process
gas is possible, reducing plant flaring
Prevents oil contamination of compressed
gases
Reduced power consumption (conservatively
>1%)
Increased process train reliability/
availability
Predictable rotor characteristic with consistent
stability
Reduced space requirements
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