Iivalvu zebhola ezidadayo zisetyenziswa ngokubanzi kumashishini ahlukeneyo ngenxa yokusebenza kwawo okugqwesileyo kokutywina, ukugcinwa lula kunye nokusebenza okuthembekileyo.Kweli nqaku, siza kuphonononga iimpawu eziphambili zeevalvu zebhola ezidadayo kwaye kutheni zikhethwa kwizicelo ezininzi.

Enye yezinto eziphambili zevalve yebhola edadayo sisakhiwo sayo esilula.Ezi zivalo zinebhola edadayo engamiselwanga kwisiqu.Endaweni yoko, iyashukuma okanye idada ngaphakathi kumzimba wevalvu, ivumela inqanaba lenkululeko ngexesha lokusebenza.Olu luyilo luvumela ibhola ukuba ihambe ngokuphendula uxinzelelo lwamanzi, iqinisekisa isitywina esiqinileyo.Ubulula boyilo kwakhona kwenza ukugcinwa kunye nokulungiswa kube lula, ukonga ixesha kunye nezibonelelo.

Olunye uphawu oluphambili lwevalve yebhola edadayo kukusebenza kokutywina okugqwesileyo ekubonelela.I-float icinezelwa kwisitulo ngoxinzelelo lolwelo, ukudala itywina elithintela ukuvuza.Olu hlobo lwevalve luyaziwa ngokuba namandla okuvala okugqwesileyo, okunciphisa nakuphi na ukuphazamiseka kokuhamba.Iimpawu zokutywina ziluncedo ngakumbi kwizicelo apho ukutywinwa kolwelo okanye iigesi kubaluleke kakhulu.

Iivalvu zebhola ezidadayo nazo zaziwa ngokuguquguquka kwazo.Zisetyenziselwa uluhlu olubanzi lwezicelo ezibandakanya amashishini afana neoli kunye negesi, i-petrochemical, izityalo zamandla kunye nokunyangwa kwamanzi.Ezi zivalo zifanelekile kwiinkqubo zombini eziphezulu kunye nezantsi, okwenza ukuba zilungele uluhlu olubanzi lweemeko zokusebenza.Ukuguquguquka kwevalve yebhola edadayo kuyenza ibe lolona khetho lubalaseleyo kwiinkqubo ezininzi zamashishini.

Ukongeza, ivalve yebhola edadayo inokuthenjwa ekusebenzeni kwaye inobomi obude benkonzo.Uyilo oludadayo luvumela ibhola ukuba ihambe kwindawo yayo, iqinisekise nokuba inxibe kwindawo yokutywina.Olu phawu lwandisa ubomi bevalve kwaye lunciphisa isidingo sokutshintshwa rhoqo.Ukusebenza okuthembekileyo kongezwa ngakumbi ngokukwazi kwevalve yebhola edadayo ukuphatha ulwelo olunoxinzelelo oluphezulu ngaphandle kokubeka esichengeni ukusebenza.

Ukongeza, iivalvu zebhola ezidadayo kulula ukuzigcina kwaye zifuna ixesha elincinci lokulungiswa.Ekubeni ibhola ingagxininiswa kwisiqu, inokususwa ngokulula ukuze ihlolwe kwaye igcinwe.Oku kulula ukugcinwa kunciphisa iindleko zokusebenza kwevalve kwaye iqinisekisa ukuba ihlala ikwimeko ephezulu yokusebenza.

Iivalvu zebhola ezidadayo zikwafumaneka kwiintlobo ngeentlobo zemathiriyeli ukuhambelana neentlobo ezahlukeneyo zolwelo kunye nokusingqongileyo.Izinto eziqhelekileyo ziquka insimbi engenasici, ubhedu, kunye ne-carbon steel.Ukukhethwa kwezinto eziphathekayo kunokulungelelaniswa neemeko ezithile zokusebenza, ukuqinisekisa ukuthembeka okuphezulu kunye nokuqina.

Iimpawu eziphambili zevalve yebhola edadayo zenza ukuba ibe lukhetho oludumileyo kumashishini amaninzi.Isetyenziswa ngokubanzi ngenxa yesakhiwo sayo esilula, ukusebenza kokutywina okugqwesileyo, ukuguquguquka okunamandla, ukusebenza okuthembekileyo kunye nokugcinwa kakuhle.Nokuba zilawula ukuhamba kolwelo okanye iigesi kwizibonelelo ze-oyile nerhasi, okanye ukugcina iinkqubo zokucocwa kwamanzi, iivalvu zebhola ezidadayo zibonakalise ukuba lukhetho oluthembekileyo nolusebenzayo.Akumangalisi ukuba iivalve zebhola ezidadayo zithathwa kakhulu kwishishini ngenxa yokukwazi ukujongana noxinzelelo olubanzi kunye nokuhambelana nezinto ezahlukeneyo.