Maintenance & Reliability
HP Reliability: Consider dry gas seals for centrifugal compressors
For over five decades, centrifugal compressors have benefited from mechanical field technology. The early compressors of the 1950s often struggled with cumbersome labyrinth sealing and gas eductor arr..
Case 24: The moving gearbox
Thermal distortions can move a 50-ton gearbox
HP Reliability: Straightening carbon steel shafts
Before attempting to straighten a shaft, try to determine how the bend was produced. If the bend was produced by an inherent stress relieved during the machining operation, during heat proofing, on th..
Introduction to NACE standard MR0103
Use these materials to reduce sulfide stress cracking in corrosive refinery environments
HP Reliability: Consider casting salvaging methods
Repair-welding process machinery cast components is frequently not possible. Fortunately, however, there are salvaging methods that do not involve welding: Controlled-atmosphere furnace brazing ..
NPSHA —how much is enough?
Follow these guidelines to avoid pump damage
Cure liquid carryover from compressor suction drums
Here's how to apply mist eliminators for higher throughput and efficiency
HP Reliability: Substantive change needed
"When reform becomes the status quo," says Frederick M. Hess, executive editor of Education Next and resident scholar at the American Enterprise Institute, "then you'll encounter symbolic activity rat..
Improve FCC yields to meet changing environment—Part 2
Controlling emissions is another vital component for revamp projects
Case 23: Analyzing a crack-like defect in a vessel wall
You should know what needs to be done but not necessarily how to do it
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