The Flange centerline butterfly vavu, angagwiritsidwe ntchito payipi flange mtundu PN16, Class150 payipi, mpira chitsulo thupi, atapachikidwa mphira mpando, akhoza kufika 0 kutayikira, ndipo kwambiri ayenera kulandira gulugufe valavu.Kukula kwakukulu kwa valavu yagulugufe ya flange yapakatikati ikhoza kukhala DN3000, yomwe imagwiritsidwa ntchito popereka madzi ndi ngalande, machitidwe a HVAC, ndi makina apamagetsi apamadzi.