Ivalve yebhabhathane yeBWSX yomgca ophakathi yivalve yebhabhathane yomgca ophakathi ephuhliswe ngokuzisa ubuchwepheshe obuphezulu obuvela phesheya. I-valve yebhabhathane ye-BWSX yomgca ophakathi ineenzuzo zesakhiwo esilula, ukutywinwa okuthembekileyo, ukuvulwa okulula, ubomi benkonzo ende kunye nokugcinwa ngokufanelekileyo. Ngoko ke, isetyenziswe ngokubanzi kwiipayipi ezahlukeneyo zokubonelela ngamanzi kunye nenkqubo yokuhambisa amanzi, ukwakha inkqubo yokukhusela umlilo, ngakumbi kwiipayipi zokukhusela umlilo.