Discharge Pressure 1 : (1) The pressure. in pounds per square inch (psi) or kilopascals (kPa), registered on the discharge side of a pump. (2) The force at which a stream is discharged from a nozzle
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}