I-valve yokuhlola ibhekisela ku-valve evula futhi ivale ngokuzenzakalelayo i-valve flap kuye ngokugeleza kwe-medium ngokwayo ukuvimbela i-medium ukuthi igeleze emuva. Ibizwa nangokuthi i-check valve, i-one-way valve, i-reverse flow valve, kanye ne-back pressure valve. Umsebenzi we-check valve uthi
I-valve yokuhlola uhlobo lwe-valve ezenzakalelayo, umsebenzi wayo oyinhloko ukuvimbela ukugeleza kwangemuva kwe-medium, ukuvimbela iphampu kanye ne-drive motor ukuthi ingahlehli, kanye nokukhishwa kwe-medium yesitsha. I-valve yokuhlola ingasetshenziswa futhi ukuhlinzeka ngamapayipi ezinhlelo ezisizayo lapho ingcindezi ingakhuphuka ngaphezu kwengcindezi yesistimu.
Ukuhlukaniswa kwama-valve okuhlola
Ngokwesakhiwo sayo nendlela yokufaka, i-check valve ingahlukaniswa ibe:

1. I-valve yokuhlola i-swing
Idiski yevalvu yokuhlola i-swing imise okwediski futhi ijikeleza umgodi wendlela yesihlalo sevalvu. Ngenxa yokuthi indlela evalvuni ilula, ukumelana kokugeleza kuncane kunokwevalvu yokuhlola i-lift. Ifanele amazinga okugeleza aphansi kanye namavalvu angabuyi. Izikhathi zobubanzi obukhulu ezinezinguquko ezivamile, kodwa azifanelekeli ukugeleza okushisayo, futhi ukusebenza kwayo kokuvala akukuhle njengohlobo lokuphakamisa. Amavalvu yokuhlola i-swing ahlukaniswe ngezinhlobo ezintathu: ivalvu eyodwa, ivalvu ephindwe kabili kanye nevalvu eyingxenye. Lezi zinhlobo ezintathu zihlukaniswa kakhulu ngokwe-diameter yevalvu. Inhloso ukuvimbela i-medium ukuthi ingami noma igeleze emuva futhi yenze buthaka ukushaqeka kwe-hydraulic.

2. I-valve yokuhlola ukuphakama
I-valve yokuhlola enediski eshelela eceleni komugqa oqondile womzimba we-valve. I-valve yokuhlola ukuphakama ingafakwa kuphela epayipini elivundlile, futhi ibhola eliyindilinga lingasetshenziswa kwi-disc ebanzi ku-valve yokuhlola encane enobukhulu obuphezulu. Isimo somzimba we-valve ye-valve yokuhlola ukuphakama sifana ne-valve yokumisa (engasetshenziswa ngokufana ne-valve yokumisa), ngakho-ke i-coefficient yayo yokumelana noketshezi inkulu kakhulu. Isakhiwo sayo sifana ne-valve yokumisa, futhi umzimba we-valve ne-disc kufana ne-valve yokumisa. Ingxenye engenhla ye-valve disc kanye nengxenye engezansi yesembozo se-valve kucutshungulwa nge-guide sleeves. I-disc guide sleeves ingaphakama futhi iwe ngokukhululeka emikhonweni ye-valve cover guide. Lapho i-medium igeleza phansi, ama-valve disc avulwa ngokusunduza kwe-medium. Lapho i-medium ima, ama-valve disc athembele ngokwawo. Awela esihlalweni se-valve ukuvimbela i-medium ukuthi igeleze emuva. Isiqondiso se-medium inlet kanye ne-outlet channel ye-straight-through lift check check valve siqonde ngqo esiqondiso se-valve sesihlalo se-valve; ivalvu yokuhlola ukuphakama evundlile inesiqondiso esifanayo seziteshi zokungena eziphakathi nendawo kanye nezokuphuma njengesiteshi sesihlalo sevalvu, futhi ukumelana kwayo nokugeleza kuncane kunohlobo oluqondile.

3. I-valve yokuhlola idiski
Ivalvu iyivalvu yokuhlola ejikeleza umgodi wephini esihlalweni sevalvu. Ivalvu yokuhlola idiski inesakhiwo esilula futhi ingafakwa kuphela epayipini elivundlile, elingasebenzi kahle ekuvaleni.

4. I-valve yokuhlola esemgqeni
Ivalvu iyivalvu eshelela eceleni komugqa ophakathi womzimba wevalvu. Ivalvu yokuhlola emugqeni uhlobo olusha lwevalvu. Incane ngobukhulu, isisindo esincane, futhi inhle ekucubunguleni ubuchwepheshe. Ingenye yezindlela zokuthuthukiswa kwamavalvu okuhlola. Kodwa-ke, i-coefficient yokumelana noketshezi inkulu kancane kunevalvu yokuhlola eshukumayo.
5. I-valve yokuhlola ukucindezela
Lolu hlobo lwe-valve lusetshenziswa njenge-boiler feed water and steam shut-off valve, lunomsebenzi ophelele we-lift check valve kanye ne-stop valve noma i-angle valve.