Ductile iron hard-back wafer butterfly valavu, ntchito yamanja, kulumikizana ndimitundu yambiri, kulumikizidwa ndi PN10, PN16, Class150, Jis5K/10K, ndi mfundo zina za payipi flange, kupanga mankhwalawa amagwiritsidwa ntchito kwambiri padziko lapansi.Amagwiritsidwa ntchito makamaka mu ulimi wothirira, chithandizo cha madzi, madzi a m'tawuni ndi ntchito zina.