I-Valve ye-Brass Straineryenziwe ngethusi elibunjiwe, elibizwa nangokuthi i-valve yesihlungi sethusi, eklanyelwe ukuhlunga ukungcola ohlelweni lokulawula uketshezi, uketshezi lugeleza lubheke ohlangothini olulodwa bese luhlunga ngesikrini se-s/s sesihlungi se-valve, esisetshenziselwa kakhulu amapayipi, ukupompa, namapayipi.