Air Bound : The state in which the action of any part or parts of a machine is prevented by an air pocket, found especially in centrifugal pumps. See also: Air Lock
Ralph W. Burklin & Robert G. Purington, Fire Terms: A Guide to Their Meaning and Use, National Protection Association, Boston, MA 1980 USA. (Guide: Meaning and Use, Nat Prot Association Fr Srvc - Amer) {457}