Compressor Selection Maps: centrifugal
Compressor selection maps per API 617/618/619 — operating envelopes, polytropic efficiency ranges, specific power, surge and turndown limits, molecular weight suitability, discharge temperature limits, capacity control methods, pulsation requirements, lubrication/maintenance intervals, and selection criteria for centrifugal, reciprocating, screw, scroll, diaphragm, and axial compressors
| compressor type | record id | api standard | notes | parameter category | size class | typical applications |
|---|---|---|---|---|---|---|
| centrifugal | api_class | API 617 | API 617 Chapter 2: multistage horizontally split and vertically split barrel types; Chapter 3: single-stage overhung; Chapter 4: axial; min mechanical running speed: 105% of max continuous speed for vibration; lateral critical clearance >= 15% | api_class | all | Petroleum chemical and gas industry process service |
| centrifugal | api_class_envelope | API 617 | API 617 units rated > 300 kW (400 HP) and/or > 3.4 barg (50 psig) discharge gauge pressure; covers horizontal and vertically split casings; Chapter 2 multistage; Chapter 3 overhung; Chapter 4 axial; excludes fans, blowers < 3.4 barg | api_class_envelope | all | Centrifugal compressors in petroleum chemical and gas service |
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