Patent ID: 7950625

Claim:
Shut-off element for a shut-off instrument for a flow medium with a disc-shaped main body having at least one flattened section formed in a plane running perpendicular to a longitudinal middle axis and a compensating element arranged in the region of the at least one flattened section and secured by a plug-and-socket connection, said disc-shaped main body being provided on opposite support surfaces with soft seal sealing elements, and with a mounting bore penetrating the disc-shaped main body for a slide valve stem , wherein on the support surfaces ribs projecting over their surfaces are arranged for forming a structure, for the engaged arrangement of the seal elements provided with a compatible structure, and the seal elements on the disc-shaped main body are secured by support discs arranged on opposite end faces of the seal elements by means of securing means penetrating the support discs, seal elements and the disc-shaped main body in bores.