Ekucimeni umlilo, iivalvu zidlala indima ebalulekileyo ekulawuleni ukuhamba kwamanzi okanye ezinye izinto zokucima umlilo.Iindidi ezimbini zeevalvu eziqhele ukusetyenziswa kule ndawo zizivalo zebhabhathane kunye neevalvu zebhola.Ngelixa ezi ntlobo zimbini zeevalvu zisebenza ngeenjongo ezifanayo, zineeyantlukwano eziphambili ezenza ukuba zilungele iimeko ezithile.
Omnye umahluko ophambili phakathi kweevalve zebhabhathane kunye neevalve zebhola kuyilo lwazo.Ivalve yebhabhathane, njengoko igama libonisa, iqulethe idiski ejikelezayo kumbhobho ukulawula ukuhamba.I-disc ifakwe kwintonga yentsimbi (ebizwa ngokuba yi-stem) eguqulwa yi-handwheel okanye i-actuator.Iivalvu zebhola, kwelinye icala, sebenzisa ibhola engqukuva enomngxuma embindini ukulawula ukuhamba.Ibhola inesiphatho okanye i-lever enokuthi ijikelezwe ukuvula okanye ukuvala ivalve.
Omnye umahluko ophawulekayo yindlela yokutywina.Kwivalve yebhabhathane, idiskhi itywina ngokutywinwa kwerabha (ebizwa ngokuba sisihlalo) ebekwe ngaphakathi kumzimba wevalvu.Olu luyilo luvumela ukusebenza ngokukhawuleza kunye nokulula.Endaweni yoko, iivalve zebhola zisebenzisa iindawo ezimbini zokutywina, ezihlala zenziwe ngeTeflon, ukubonelela ngesitywina esiqinileyo xa ivaliwe.Olu lungelelwaniso luphucula ukusebenza kokutywinwa kwevalve, yenze ukuba ilungele usetyenziso olufuna ukuvalwa okuqinileyo.
Xa kufikwa kulawulo lokuqukuqela, zombini ibhabhathane kunye neevalvu zebhola zinika umsebenzi ogqwesileyo.Nangona kunjalo, iivalve zebhabhathane zaziwa ngokuba noxinzelelo olusezantsi xa kuthelekiswa neevalvu zebhola.Oku kuthetha ukuba amandla amancinci afunekayo ukutyhala amanzi okanye ezinye ii-agent zokucima umlilo ngevalve yebhabhathane, ukunciphisa iindleko zokupompa.Iivalve zebhola, ngakolunye uhlangothi, zibonelela ngokuvuleka okugcweleyo, ukuvumela ukuhamba okungathintelekiyo kunye nokulahlekelwa kwengcinezelo encinci, okwenza kube yinto efanelekileyo kwizicelo eziphezulu.
Ngokwexabiso, iivalvu zebhabhathane ngokuqhelekileyo zineendleko eziphezulu kuneevalvu zebhola.Iivalve zebhabhathane'uyilo olulula kunye nokusebenza ngokulula kunegalelo ekufikeleleni kwabo.Ukongezelela, ngenxa yesitywina serabha, i-valve yebhabhathane ayinakukwazi ukuvuza, ngaloo ndlela inciphisa iindleko zokugcinwa.
Isishwankathelo, ngelixa zombini i-butterfly valves kunye neebhola zebhola zifanelekile kwizicelo zokukhusela umlilo, ukungafani kwazo okuphambili kubenza bafaneleke ngakumbi kwiimeko ezithile.Qwalasela iimfuno ezithile zenkqubo yakho yokukhusela umlilo kwaye udibane nengcali ukuze ibone ukuba yeyiphi ivalve (ibhabhathane okanye ivalve yebhola) eyona ilungileyo kwiimfuno zakho.
Ixesha lokuposa: Nov-24-2023