Reciprocating and Rotating Equipment

A significant amount of EDI’s field testing is performed on reciprocating compressors and pumps, and rotating equipment such as centrifugal compressors and centrifugal pumps. Solutions of problems ranging from piping vibration to impeller failures are some of the types of problems EDI specializes in.

Reciprocating compressors produce intermittent or pulsating flow, which causes pulsation in the piping.  Power pumps, gear pumps and steam pumps can produce high pulsation, and in addition to piping vibration, severe cavitation which can damage internal parts of the pumps.  Piping vibration, torsional vibration, frame vibration, cylinder stretch and foundation vibration are some of the types of issues which can manifest themselves in reciprocating equipment.

Typical types of problems encountered often on reciprocating equipment are:

• Piping Vibration
• Dynamic Misalignment Compressor Frame Vibration
• Compressor Manifold Vibration
• Torsional Vibration
• Overload, such as Cross-Head Guide to Frame Bolt Failures
• Skid Vibration

For rotating equipment such as centrifugal compressors, turbines, gear boxes, and motors, typical vibration problems are:

• Shaft Vibration
• Torsional Vibration
• Turbine Blade Resonance
• Impellar Wheel Resonace
• Fan Wheel “Wobble” Vibration

See links to Torsional Vibration, Compressor Frame, and Skid & Foundation