Compressor Performance: diaphragm_compressor
Centrifugal, reciprocating, and rotary screw compressor typical performance envelopes — polytropic and adiabatic efficiency, head per stage, pressure ratio, speed range, and turndown by compressor type and flow range
| compressor type | flow range | adiabatic efficiency pct (%) | flow max acfm (acfm) | flow min acfm (acfm) | head per stage ft (ft) | notes | polytropic efficiency pct (%) | pressure ratio per stage max (dimensionless) | pressure ratio per stage min (dimensionless) | speed rpm max (rpm) | speed rpm min (rpm) | turndown pct (%) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| diaphragm_compressor | medium | 60 | 200 | 20 | 0 | Medium diaphragm: typically two or three stages for higher pressure ratios; 20-200 acfm; adiabatic efficiency 57-63%; used for CNG compression and high-pressure specialty gas service up to 1000+ bar; metal diaphragm design for high-temp service | 0 | 6 | 2 | 600 | 150 | 100 |
| diaphragm_compressor | small | 62 | 20 | 0 | 0 | Diaphragm compressor: positive displacement; hermetically sealed - zero process contamination; used for high-purity or hazardous gas service; very low flow capacity 0-20 acfm; pressure ratio up to 8:1 per stage; adiabatic efficiency 55-65%; fully adjustable turndown via speed control or cycling; ATEX/ASME rated | 0 | 8 | 2 | 1,200 | 300 | 100 |
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