Ivalvu yokujonga yivalvu enezixhobo zokuvula nokuvala eziziidiski, ezithi ngenxa yobunzima bazo kunye noxinzelelo olusebenzayo zithintele ukuba i-medium ingabuyi. Yivalvu ezenzekelayo, ekwabizwa ngokuba yivalvu yokwahlukanisa, ivalvu yokubuya, ivalvu yendlela enye, okanye ivalvu yokujonga. Uhlobo lokuphakamisa kunye nohlobo lokujika ziindidi ezimbini apho idiski inokuhamba khona.

Isiqu sevalvu esinika amandla idiski kwivalvu yehlabathi kunye neliftiivalvu yokujongayabelana ngoyilo olufanayo lolwakhiwo. Isixhobo singena ngokufakwa kwicala elingezantsi size siphume ngomngxuma osecaleni eliphezulu (icala elingaphezulu). Ivalvu iyavuleka xa uxinzelelo lokungena ludlula ubunzima bediski kunye nokumelana kwayo nokuhamba kwamanzi. Ivalvu iyacinywa xa isixhobo sihamba kwicala elichaseneyo.

Ukusebenza kwevalvu yokujonga ilifti kufana nokwevalvu yokujonga iswing kuba zombini ziquka iipleyiti zeswash ezijikelezayo. Ukuze kuthintelwe amanzi ukuba abuyele umva, iivalvu zokujonga zihlala zisetyenziswa njengeevalvu ezisezantsi kwizixhobo zokumpompa. Umsebenzi wokwahlukanisa ukhuseleko unokwenziwa ngokusebenzisa ivalvu yokujonga kunye nevalvu yeglobe. Ukumelana okugqithisileyo kunye nokungatywini ngokwaneleyo xa kuvaliwe kuyingxaki.

Kwimigca ekhonza iinkqubo ezincedisayo apho uxinzelelo lunokunyuka ngaphezu koxinzelelo lwenkqubo,iivalvu zokujonganazo ziyasetyenziswa. Iivalvu zokujonga i-swing kunye neevalvu zokujonga ukuphakamisa zezona ntlobo zimbini ziphambili zeevalvu zokujonga. Iivalvu zokujonga i-swing zijikeleza embindini womxhuzulane (zihamba ecaleni kwe-axis).

Umsebenzi wale valve kukuthintela ukuhamba kwe-medium ukuya kwicala elinye ngelixa uvimba ukuhamba kwelinye icala. Le valve idla ngokusebenza ngokuzenzekelayo. Idiski yevalvu iyavuleka xa uxinzelelo lolwelo luhamba kwicala elinye; xa uxinzelelo lolwelo luhamba kwelinye icala, isihlalo sevalvu sichaphazeleka luxinzelelo lolwelo kunye nobunzima bediski yevalvu, ethintela ukuhamba.

Olu didi lweevalvu luquka iivalvu zokujonga, ezifana neevalvu zokujonga i-swing kunye ne-liftiivalvu zokujongaIdiski efana nocango yevalvu yokujonga iswing ixhomekeke ngokukhululekileyo kumphezulu wesihlalo esityibilikayo ngenxa yendlela yokubopha ihinge. I-valve clack yakhiwe kwindlela yokubopha ihinge ukuze ibe nendawo eyaneleyo yokujika kwaye ikwazi ukunxibelelana ngokupheleleyo nesihlalo se-valve clack ukuqinisekisa ukuba inokuhlala ifikelela kwindawo efanelekileyo yomphezulu wesihlalo.

Ngokuxhomekeke ekusebenzeni okufunekayo, iidiski zinokwakhiwa ngokupheleleyo ngesinyithi okanye zibe nezigqubuthelo zesikhumba, zerabha, okanye ezenziwe ngokwenziwa kwisinyithi. Uxinzelelo lolwelo aluphazanyiswa kwaphela xa ivalvu yokujonga ukujika ivuliwe ngokupheleleyo, ngoko ke ukulahleka koxinzelelo ngevalvu kuncinci.

Umphezulu wokutywina wesihlalo sevalvu emzimbeni wevalvu kulapho idiski yevalvu yokujonga ukuphakama ikhoyo. Inxalenye eseleyo yevalvu ifana nevalvu yeglobe, ngaphandle kokuba idiski inokunyuka ize iwe ngokukhululekileyo. Xa kukho ukubuya komoya ophakathi, idiski yevalvu ibuyela kwisihlalo sevalvu, inqande ukuhamba. Uxinzelelo lolwelo luphakamisa idiski yevalvu kumphezulu wokutywina wesihlalo sevalvu. Idiski inokwenziwa ngesinyithi ngokupheleleyo, okanye inokuba neeringi zerabha okanye iipadi ezifakwe kwisakhelo sediski, kuxhomekeke kwiimeko zokusetyenziswa.

Ivalvu yokujonga ilifti inendlela encinci yolwelo kunevalvu yokujonga iswingi, nto leyo ebangela ukwehla okukhulu koxinzelelo ngevalvu yokujonga ilifti kunye nesantya sokuhamba kwevalvu yokujonga iswingi esiphantsi.