A valve disc and drive shaft assembly particularly for a buterfly valve

摘要

A valve disc (10) and drive shaft (16) assembly wherein the end of the drive shaft (16) seats in a blind bore (26) at the periphery of the valve disc. The end (30) of the shaft (16) or the base (29) of the bore (26) is formed with a tang (32), extending perpendicularly to the plane of the disc (10), seating in an elongated recess (28) in the base (29) of the bore (26) or end (30) of the shaft (16) respectively.