Overview
Centrifugal compressors are high‑speed turbomachines that pressurize gases by converting rotational energy into kinetic energy and then into pressure. They’re used in industries like petrochemical, power generation, refrigeration, and air separation for continuous, high‑flow applications. Buyers look at capacity, pressure ratio, speed, driver compatibility, and condition of impellers, bearings, and seals when evaluating used units.
FAQ
What should I check when buying a used centrifugal compressor?
Verify performance curves, nameplate capacity, operating speed and driver match. Inspect impellers, shaft runout, bearings, seals, casing for corrosion or erosion, and review vibration and maintenance records. Ask for recent balancing, rotor inspections, and any overhaul documentation.
How do I arrange safe shipping for a centrifugal compressor?
Use a carrier experienced with rotating equipment. Preserve the rotor with bracing, secure to a skid, protect seals and bearings, and drain fluids. Provide lifting points and weight/dimensions, and plan for specialist rigging and transport insurance.
What ongoing maintenance should I plan after purchase?
Schedule alignment checks, vibration monitoring, bearing and seal inspections, oil analysis, and periodic rotor balancing. Follow OEM inspection intervals for clearances and anti‑surge controls, and keep detailed operating logs to detect performance drift.
