Ivalve yebhabhathane enemigca ye-PTFE isebenzisa ipleyiti yebhabhathane enemigca ye-PTFE enomgangatho otywiniweyo.Ivalve kulula ukuyisebenzisa, inomsebenzi wokutywina oqinileyo, kunye nobomi benkonzo ende;ingasetyenziselwa ukunqunyulwa ngokukhawuleza okanye ukulungiswa kokuhamba.Ifanelekile kwizihlandlo ezifuna ukutywinwa okuthembekileyo kunye neempawu zohlengahlengiso oluhle.Umzimba wevalvu wamkela uhlobo olwahlulahlulwe, kwaye ukutywinwa kuzo zombini iziphelo zeshafu yevalve kulawulwa ngumgangatho ojikelezayo wesiseko phakathi kwepleyiti yebhabhathane kunye nesitulo sevalve kunye nerubha enefluorine;ukuqinisekisa ukuba i-valve shaft ayiqhagamshelani nendawo yolwelo kwigumbi.Isebenza ngokubanzi ekuthuthweni kolwelo kunye neegesi (kubandakanywa umphunga) kwiindidi ezahlukeneyo zemibhobho yemizi-mveliso, kunye nokusetyenziswa kwemithombo yeendaba eyingozi kakhulu, efana ne-sulfuric acid, i-hydrofluoric acid, i-phosphoric acid, i-chlorine, i-alkali eyomeleleyo kunye nezinye izinto eziyingozi kakhulu.