Early detection of rider band and piston ring failure

On a Booster Primary compressor in LDPE service

Shutdown due to high values of Peak-To-Peak and Piston rod position of the Booster cylinder.

Monitored compressor:

  • Booster Primary, Burckhardt Compression B5C 1.65
  • 4 cylinders, 5 stages
  • Suction pressure (0,6 bar)
  • Discharge pressure (245 bar)

Trend November 2015:

Rod position values October – November 2015:

 

Meaningful analysis and display: Segmented piston rod position in 3D trend view

 

Root cause analysis:

Findings: