ULLAS D.R; DR P.V SRIHARI. Offset Disc Butterfly Valve Design. International Journal of Advance Engineering and Research Development (IJAERD), [S. l.], v. 1, n. 8, p. 40–46, 2014. Disponível em: https://ijaerd.org/index.php/IJAERD/article/view/4803. Acesso em: 7 jul. 2025.