Kwimizi-mveliso yolwandle nolwandle, ukusetyenziswa kweevalvu zeebhabhathane ezingangeni manzi olwandle kubalulekile ukuqinisekisa ukusebenza kakuhle nangokuthembekileyo kweenkqubo ezahlukeneyo kunye nezixhobo. Ezi valves zikhethekileyo zenzelwe ukumelana neemeko ezinzima zeendawo zamanzi olwandle, nto leyo ezenza zibe yinxalenye ebalulekileyo kwizicelo ezahlukeneyo kuquka ukungena nokuphuma kwamanzi olwandle, iinkqubo ze-ballast, iinkqubo zamanzi okupholisa, nokunye.

Amanzi olwandle adlaka kakhulu ngenxa yokuba anetyuwa eninzi, nto leyo ebangela ukuba iivalvu zemveli kunye nezinye izixhobo ziwohloke ngokukhawuleza. Ke ngoko, ukusetyenziswa kweevalvu zeebhabhathane ezingangeni manzi olwandle kubalulekile ukuthintela ukubola nokuqinisekisa ukusebenza kwexesha elide kunye nokuthembeka kweenkqubo ezibalulekileyo kwiindawo zaselwandle nakwiindawo ezikude nolwandle.

Enye yezona zinto ziphambili kwiivalvu zeebhabhathane ezimelana namanzi olwandle kukwakhiwa kwazo kusetyenziswa izixhobo ezenzelwe ngokukodwa ukumelana nemiphumo yokubola kwamanzi olwandle. Ezi zinto zihlala ziquka intsimbi engagqwaliyo, ibronze, okanye ezinye iialloy ezimelana nokubola ezinokumelana neemeko ezinzima zeendawo ezinamanzi anetyuwa.

Ukongeza kulwakhiwo olumelana nokugqwala, iivalvu zebhabhathane ezimelana namanzi olwandle zenzelwe ukubonelela ngokusebenza okuthembekileyo nokusebenza kakuhle kwiindlela zaselwandle. Uyilo lwazo olukhethekileyo lwebhabhathane luvumela ukusetyenziswa ngokukhawuleza nangokulula, nto leyo eyenza ukuba zilungele ukusetyenziswa ezifuna ukuvulwa nokuvalwa rhoqo kwevalvu. Olu yilo lukwavumela ulawulo oluchanekileyo lokuhamba kwamanzi, nto leyo eyenza ivalvu yebhabhathane emelana namanzi olwandle ifaneleke kwiimfuno ezahlukeneyo zokuhamba kwamanzi kunye noxinzelelo.

Ukongeza, iivalvu zeebhabhathane ezingangeni manzi olwandle zihlala zixhotyiswe ngetekhnoloji yokuvala ephucukileyo ukuqinisekisa ukusebenza kakuhle kokutywina nokuba kukho amanzi olwandle arhabaxa. Oku kubalulekile ukuthintela ukulahleka kwezixhobo ezixabisekileyo, ezinje ngamanzi olwandle asetyenziselwa ukupholisa okanye ukupholisa, kunye nokugcina ukuthembeka kweenkqubo ezibalulekileyo kwizicelo zaselwandle nasemaphandleni.

Ukubaluleka kweevalvu zeebhabhathane ezimelana namanzi olwandle kucacile ngakumbi kwiinkqubo zokungena kunye nezokuphuma kwamanzi olwandle. Ezi nkqubo zibaluleke kakhulu kwimisebenzi eyahlukeneyo yaselwandle naselwandle, kubandakanya ukupholisa iinjini nezixhobo emanzini olwandle, i-ballast yenqanawa ukuqinisekisa uzinzo, kunye nokubonelela ngamanzi olwandle kwiinkqubo ezahlukeneyo zoshishino. Iivalvu zeebhabhathane ezimelana namanzi olwandle zidlala indima ebalulekileyo ekulawuleni ukuhamba kwamanzi olwandle kwezi nkqubo, ukuqinisekisa ukusebenza kakuhle kunye nokuthintela umngcipheko wokungaphumeleli okunxulumene nokugqwala.

Esinye isicelo esibalulekileyo kwiivalvu zeebhabhathane ezimelana namanzi olwandle yinkqubo yamanzi okupholisa yeenqanawa kunye nezixhobo zaselwandle. Ezi nkqubo zibalulekile ekupheliseni ubushushu obuveliswa ziinjini, oomatshini kunye nezinye izixhobo, kwaye amanzi olwandle adla ngokusetyenziswa njengendawo yokupholisa ngenxa yeempawu zawo ezishushu kakhulu. Iivalvu zeebhabhathane ezimelana namanzi olwandle zisetyenziselwa ukulawula ukuhamba kwamanzi olwandle ngezi nkqubo zokupholisa, ukuqinisekisa ukudluliselwa kobushushu ngokufanelekileyo kunye nokuthintela umngcipheko weengxaki ezinxulumene nokugqwala ezinokuphazamisa ukusebenza kwezixhobo ezibalulekileyo.

Ngamafutshane, ukusetyenziswa kweevalvu zeebhabhathane ezimelana namanzi olwandle kubalulekile ekuqinisekiseni ukusebenza okuthembekileyo nokusebenzayo kweenkqubo ezibalulekileyo kwizicelo zaselwandle nasemaphandleni. Ukwakhiwa kwayo okumelana nokugqwala, ukusebenza okuthembekileyo kunye neempawu zokutywina kuyenza ibe yinxalenye ebalulekileyo kwizicelo ezahlukeneyo, kubandakanya ukungena nokuphuma emanzini olwandle, iinkqubo zamanzi okupholisa, iinkqubo ze-ballast, nokunye. Ngokukhetha ivalvu yeebhabhathane ezimelana namanzi olwandle, ishishini laselwandle nelaselwandle linokuqinisekisa ukusebenza kwexesha elide kunye nokuthembeka kweenkqubo zabo, nokuba phantsi kweemeko ezinzima nezigqwala kwiindawo zaselwandle.