Air flow in cubic feet per minute and sand consumption per hour Conversion charts Vacuum flow through orifices Flow of air through an orifice in SCFM ACFM and SCFM corrections for altitude oil-flooded single-stage torary screw air compressor ACFM and SCFM corrections for altitude oil-free, two-stage rotary screw air compressors 100 psig discharge pressure Saturated water vapor pressures vs. temperature Compressed air definitions and terminology