Lolu chungechunge lwe-fan-shape blind plate valve libizwa nangokuthi i-goggle valve, i-flap valve, i-valve yabalandeli, futhi iyithuluzi elingasusa igesi ephakathi kwe-GB6222-86 "Imithethonqubo Yezimboni". Isetshenziswa ohlelweni lwegesi Medium Pipeline amabhizinisi wezimboni kanye nezimayini, ukuphathwa komasipala, ukuvikelwa kwemvelo kanye neminye imboni, ikakhulukazi ilindelwe ngokuphelele kumagesi anobuthi, ayingozi futhi avuthayo. Ilungele futhi ukuthi isetshenziswe njengepuleti elingaboni ekugcineni kwepayipi ukunciphisa isikhathi sokulungiswa noma ukuxhuma uhlelo olusha lwamapayipi. Uma kuqhathaniswa namanye amadivaysi e-valve enza ukusika ngokuphelele epayipini, lolu chungechunge lwe-valve yepuleti olubunjiwe enomumo olunezimpawu zesakhiwo senoveli, isisindo esikhanyayo, isivinini esikahle, nokusebenza kwegesi okunokwethenjelwa ngokuphelele.