The Compressed Air & Gas Institute has published a sixteen page brochure presenting the several types of rotary positive displacement compressors, their capacity controls, instrumentation and related accessories. The guide, Rotary Air Compressor Selection Guide, is a basic primer on the various rotary air compressors designs offered on the market today including oil-flooded and oil-free rotary screw compressors, oil injected single screw and rotary sliding vane compressors, rotary scroll compressors and PTO (Power Take-off) compressors. The fundamental working principles of these compressor types are presented with photographs and illustrations supplemented by a comprehensive glossary of terms.

The Compressed Air & Gas Institute, Inc., is a non-profit organization of over 40 companies which manufacture air and gas compressors, pneumatic machinery and air and gas drying equipment; products which have myriad applications worldwide in construction, manufacturing, mining and the process and natural gas industries.

Compressed Air and Gas Institute (CAGI).

For more information regarding this publication or a listing of other materials offered by the Compressed Air & Gas Institute, contact John Addington at the CAGI office, 1300 Sumner Avenue, Cleveland, OH 44115; e-mail: cagi@cagi.org; fax: 216/241-0105.