Iivalvu zebhabhathane zidlala indima ebalulekileyo xa kufikwa ekulawuleni ukuhamba kolwelo kwiinkqubo zemibhobho. Kwimisebenzi yemizi-mveliso,Iivalvu zebhabhathane zePVCzikhethwa kakhulu ngenxa yokuqina kwazo nokusebenza kwazo kakuhle. Kweli nqaku, siza kujonga ngokunzulu imisebenzi yeevalvu zeebhabhathane, ngakumbi ezo zenziwe ngePVC, kwaye sihlole ukuba kutheni zibalulekile kumashishini ahlukeneyo.

Umsebenzi wevalvu yebhabhathaneilula kakhulu kodwa ibaluleke kakhulu. Ngokwenyani, ilawula ukuhamba kolwelo ngokusebenzisa idiski ebizwa ngokuba yi-"butterfly" esembindini wepayipi. Ngokungafaniyo neevalvu zebhola, ezisebenzisa ibhola ukulawula ukuhamba, idiski yevalvu yebhabhathane ifakwe kwishafti ejikelezayo. Xa ivalvu ikwindawo evaliweyo, idiski ihambelana nokuhamba kolwelo, ithintela ngempumelelo ulwelo. Xa ivuliwe, idiski ijikeleza ngakwicala lokuhamba kwamanzi, ivumela ulwelo ukuba ludlule.

Izinto zePVC zongeza olunye ulwelo lokusebenza kunye nokuthembeka kwiivalvu zeebhabhathane. I-PVC, okanye i-polyvinyl chloride, yi-thermoplastic enokumelana kakuhle neekhemikhali kwaye ifanelekile kwiintlobo ngeentlobo zezicelo. Ukongeza ekubeni imelana neekhemikhali ezirhabaxa, i-PVC ilula, kulula ukuyifaka, kwaye ixabisa kancinci, nto leyo eyenza ukuba ibe yinto efanelekileyo kwiivalvu zeebhabhathane.

Iivalvu zebhabhathane zePVC zithandwa kakhulukwiindawo zoshishino apho ukuhamba kolwelo olurhabaxa kuxhaphakileyo. Ukukwazi kwayo ukumelana neekhemikhali eziqatha kunye nobushushu obugqithisileyo kuyenza ibe yinxalenye ebalulekileyo kwizityalo zokucubungula iikhemikhali, kwiindawo zokunyanga amanzi kunye neenkqubo zokulawula amanzi amdaka. Ukuqina kunye nokuqina kweevalvu zebhabhathane zePVC kuqinisekisa ukuba zinokubonelela ngenkonzo yexesha elide nethembekileyo kwiindawo ezixineneyo.

Ukongeza, iivalvu zeebhabhathane zePVC zikwasetyenziswa kakhulu ekuthuthweni kwamanzi kunye nezinye izinto ezingonakalisiyo. Umphezulu wayo ongaphakathi ogudileyo unciphisa ukuhla koxinzelelo kunye nokuxinana, okwenza kube lukhetho olusebenzisa amandla amaninzi lokulawula ulwelo. Oku kwenza iivalvu zeebhabhathane zePVC zibe lukhetho oludumileyo kwiinkqubo zeHVAC, iinkqubo zokunkcenkceshela kunye neenethiwekhi zokusasaza amanzi.

Enye into ebalulekileyo ngomsebenzi weevalvu zeebhabhathane, kuquka nezo zenziwe ngePVC, kukukwazi kwazo ukulawula ukuhamba kolwelo. Ngokulungisa i-engile yediski ngaphakathi kwevalvu, isantya sokuhamba sinokulawulwa ngokuchanekileyo. Oku kwenza iivalvu zeebhabhathane zibe nobuchule kakhulu njengoko zinokusetyenziselwa ukulawula ukuhamba kolwelo kwiinkqubo ezahlukeneyo zoshishino, ukuqinisekisa ukusebenza kakuhle nokusebenza kakuhle.

Ngamafutshane, umsebenzi weevalvu zeebhabhathane, ingakumbi ezo zenziwe ngePVC, ubaluleke kakhulu kwicandelo lolawulo lolwelo lwemizi-mveliso. Ukukwazi kwayo ukulawula ukuhamba kolwelo, ukumelana neekhemikhali ezibolayo kunye nokubonelela ngenkonzo ethembekileyo kuyenza ibe yinxalenye ebalulekileyo kwimizi-mveliso emininzi. Nokuba kukulawula ukuhamba kweekhemikhali ezibolayo kwisityalo sokucubungula okanye ukulawula ukusasazwa kwamanzi kwiinkqubo zikamasipala, iivalvu zeebhabhathane zePVC zidlala indima ebalulekileyo ekuqinisekiseni ukuba iinkqubo ezininzi zoshishino zihamba kakuhle nangokufanelekileyo.