uʻamea uʻamea malo-i tua wafer butterfly valve, faʻagaioiga tusi lesona, o le fesoʻotaʻiga e tele-tulaga, ia faʻafesoʻotaʻi i le PN10, PN16, Class150, Jis5K / 10K, ma isi tulaga o le pipeline flange, faʻaaogaina lautele lenei oloa i le lalolagi.E masani ona faʻaaogaina i le faʻaleleia o le vai, togafitiga vai, tuʻuina atu o vai i le taulaga ma isi galuega.