I-valve yepulasitiki iwuhlobo olusetshenziswa kabanzi lwe-valve, inezinzuzo zokungagqwala, isisindo esincane, ukumelana nokugqoka, njll. Isetshenziswa kabanzi kumakhemikhali, i-petrochemical, ukuvikelwa kwemvelo nezinye izimboni.Okulandelayo umlando wokuthuthukiswa kwama-valve epulasitiki.Ngawo-1950, w...
Funda kabanzi