Stresses and displacement FEM analysis on biplane disks of the butterfly valves

This paper has the purpose to analyse the equivalent stresses and the displacements resulted at the disk of butterfly valve. We used a butterfly valve ND2800 NP1.91 type, loading with the nominal water pressure of 1.91 MPa, using the Finite Element Method (FEM). After solving the FEM analyses, were obtained the equivalent stress von Misses, and the total deformation, for a half of the disk of the butterfly valve. The von Misses equivalent stress determined values not exceed the given admissible value.