Ivalve yebhola iimveliso zivela kwivalve yeqhude, ivalve yebhola yingqukuva yonke njengeendawo zokuvula nokuvala ivalve (i-spool), isebenzisa ingqukuva ejikeleze i-axis ye-valve stem rotation 90 degrees ukuphumeza injongo yokuvula nokuvala ivalve. Ivalve yebhola isetyenziselwa ikakhulu ukusika, ukusasaza kunye nokutshintsha indlela yokuhamba okuphakathi kumbhobho. Ivalve yebhola enespool evulekileyo emile okwe-V nayo inomsebenzi olungileyo wokulawula ukuhamba.
Iivalve zebhola azilula nje kwisakhiwo kwaye zilungile ekusebenzeni kokutywinwa, kodwa zincinci ngobukhulu, zilula ngobunzima, zincinci ekusebenziseni izinto ezikrwada, ezincinci kubungakanani bofakelo, zincinci kumzuzu wokuqhuba, zilula ekusebenzeni kwaye kulula ukuzifumana ukuvulwa ngokukhawuleza kwaye ukuvala. Zezinye zezona ntlobo zevalvu zikhula ngokukhawuleza kumashumi eminyaka akutshanje. Ukusetyenziswa kweevalve zebhola kubanzi kakhulu. Iindidi kunye nobuninzi beevalvu zebhola zisakhula. Baphuhlisa kwicala lobushushu obuphezulu, uxinzelelo oluphezulu, i-orifice enkulu, ukutywinwa okuphezulu, ubomi benkonzo ende, ukusebenza kakuhle kommiselo kunye nemisebenzi emininzi. Ukuthembeka kwabo kunye nezinye izalathisi zokusebenza ziye zafikelela kwinqanaba eliphezulu, kwaye ziye zatshintsha ngokuyinxenye ukusetyenziswa kweevalvu zesango, iivalve zeglobhu kunye ne-throttle valves. Ngophuhliso oluqhubekayo lobuchwepheshe bevalvu yebhola, iya kusetyenziswa ngokubanzi kwixesha elifutshane elibonakalayo, ngakumbi kwimibhobho ye-oyile nerhasi, iiyunithi zokucolwa kwe-oyile kunye noshishino lwenyukliya. Ukongeza, kwamanye amashishini omgangatho omkhulu naphakathi, amabala oxinzelelo oluphakathi noluphantsi, iivalvu zebhola nazo ziya kuba zezinye zeentlobo zevalve eziphambili.