I-1.Umzimba we-valve ne-spool yenziwe ngezinto ezisezingeni eliphakeme, indandatho ye-seal engenisiwe inempilo ethe xaxa, ukunemba okuphezulu, ngaphandle kokuvuza kwamafutha, ukuvikela indandatho ye-valve bese kuvimbela ukulimala kwengcindezi eyeqile. 2.I-Volume TypeAir Media Media Media Lite Rate iyakwazi ukuguqulwa, ubukhulu futhi inembile, elula futhi esheshayo, iphephile futhi ithembekile. I-3.Ingxenye ye-Seal incishisiwe, uphawu lwangaphakathi lomzimba we-valve luthuthukisiwe, okwenza umzimba we-valve ugqoke ngokwengeziwe - ukumelana nokuqina.
