Butterfly Valves & Controls Inc offers Reliant AWWA butterfly valves icncluding model BS-504. THis model comes in sizes from 3.0” through 24.0” in double flanged and mechianic joint styles with body material choice of cast iron or ductile iron and a two part polyester epoxy coating. Available in ANSI , B.S.TE, PN10, PN16, and JIS10K Configuration.