Isingeniso: Ama-valve alawula aqondiswe ngogesi i-fluorine ayizinto ezibalulekile embonini yemishini yezimboni nezingxenye, ikakhulukazi emkhakheni we-valve. Lawa ma-valve anikela ngamakhono okuhlukile okulawula nokulawula, okwenza kube ukukhetha okuthandwayo kwezinhlelo ezahlukahlukene. Kule ndatshana, sizohlola izici ezibalulekile, izinzuzo, nokusetshenziswa kwe-fluorine-li kagesi.