Iivalve zebhola ezinamaqhekeza amabinilukhetho oludumileyo kwizicelo ezininzi zoshishino kunye nezorhwebo, ngakumbi xa ulawula ukuhamba kwamanzi. Ezi zivalo zezi auhlobo lwevalve yekotaesebenzisa ibhola enomgongxo, enemingxuma, kunye nejikelezayo ukulawula ukuhamba kwamanzi, umoya, i-oyile, kunye nolunye ulwelo olwahlukeneyo. Kwiivalve zebhola ezimbini, i-PVC yinto eqhelekileyo ngenxa yokuqina kwayo kunye nokumelana nokubola.

Umsebenzi wevalve yebhola enamacala amabini ulula kodwa usebenza. Xa isiphatho sevalve siguqulwa, ibhola ngaphakathi kwevalve iyajikeleza ukuvumela okanye ukuthintela ukuphuma kwamanzi. Oku kuyenza ilungele usetyenziso olufuna ulawulo oluchanekileyo lokuhamba. I-valve yebhola ephindwe kabini iphinde yenzelwe ukuba kube lula ukuyigcina kunye nokulungiswa, okwenza kube yisisombululo esisindleko kumashishini amaninzi.

Kwi-PVC iivalve zebhola ezimbini, le nto ineenzuzo ezininzi. I-PVC (okanye i-polyvinyl chloride) yimathiriyeli ye-thermoplastic eyaziwa ngokugqwesa kwayo ukumelana neekhemikhali, iyenza ilungele ukusetyenziswa apho iivalvu zidibana nolwelo olwahlukeneyo. Ukongeza,I-PVC ilula kwaye kulula ukuyifaka kunye nokuphatha. Ikwayinto ehlala ixesha elide kakhulu, iyenza ibe lukhetho oluhlala ixesha elide noluthembekileyo kwiivalvu zebhola ezinamaqhekeza amabini.

Omnye wemisebenzi ephambili yevalve yebhola enamacandelo amabini kukubonelela ngokuvalwa okuqinileyo. Uyilo lwevalve ludala itywina elikhuselekileyo xa livaliwe, lithintele nakuphi na ukuvuza kolwelo olulawulwayo. Oku kubalulekile kwizicelo apho ukuvuza kubiza okanye kuyingozi. Izinto ze-PVC ezisetyenziswe kwii-valve zebhola ezimbini ziqinisekisa ukuba i-valve ihlala ivalwe ngokuqinileyo ixesha elide, nangona ibonakaliswe kwiikhemikhali ezinzima okanye ukushisa okukhulu.

Olunye uphawu olubalulekileyo lwevalve yebhola enamacandelo amabini kukukwazi ukulawula ukuhamba kwamanzi. Ngokuguqula nje isibambo, izinga lokuhamba lingalungiswa ukuhlangabezana neemfuno ezithile zesicelo. Eli nqanaba lolawulo liyimfuneko kumashishini amaninzi, ukusuka kwiindawo zokunyanga amanzi ukuya kwiindawo zokunyanga iikhemikhali. Izinto zePVC ezisetyenziswe kwiivalve zebhola ezimbini ziqinisekisa ukuba ziyakwazi ukuhlangabezana neemfuno zokulawula ukuhamba kwezicelo ezahlukeneyo.

Iivalve zebhola ezinamaqhekeza amabini nazo zinenzuzo yokuba kulula ukuziqhaqha kunye nokugcina. Oku kuyinyani ngokukodwa kwi-PVC iivalvu zebhola ezimbini, apho izinto eziphathekayo zikhaphukhaphu kwaye zihlala zihlala zenza imisebenzi yokulondoloza kunye nokulungisa ilula kwaye ingabizi. Oku, kunye nokuvalwa kwayo okuqinileyo kunye nobuchule bokulawula ukuhamba, kwenza i-PVC ye-valve yebhola ephindwe kabini ibe yinto ethembekileyo neyisebenzayo yokukhethwa kwezicelo ezahlukeneyo.

Isishwankathelo, umsebenzi we-valve yebhola ezimbini (ngokukodwa enye eyenziwe nge-PVC) kukubonelela ngokuvala okuqinileyo, ukulawula ukuhamba kwamanzi, kwaye kube lula ukuyigcina. Xa ulawula ukuhamba kwamanzi, umoya okanye iikhemikhali, iivalve zebhola ezimbini zikhetho oluguquguqukayo noluthembekileyo kumashishini amaninzi. Uyilo lwayo olulula kodwa olusebenzayo oludityaniswe noncedo lwemathiriyeli yePVC iyenza ibe sisisombululo esifanelekileyo kwiinkqubo ezahlukeneyo.