Liquid carryover, more commonly referred to as liquid slugging, should be prevented if a system is designed properly. This includes the proper design and use of suction traps, knockout drums, separators, and accumulators, combined with the gravity drainage considerations of the piping design. The proper design of the controls and the location of the level and pressure sensors to control the system are just as important. Although compressor manufacturers continue to improve compressor designs to make them more forgiving to system upsets (e.g., safety heads on reciprocating compressors and spring loaded gaterotor assemblies on single screw compressors) nothing can substitute for a properly designed system.
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