APPARATUS AND METHODS TO ALIGN A CLOSURE MEMBER AND A VALVE STEM

摘要

Apparatus to align a closure member and valve stem for use with valves are described. An example valve includes a stem and a closure member having a first aperture to receive at least a portion of the stem. The example valve further includes a positioning member that has a first portion and a second portion. The first portion has a first cross-section and the second portion has a second cross-section that is greater than the first cross-section and an area between the first portion and the second portion forms a positioning surface to engage the first aperture of the closure member to align the stem and the closure member. A fastening member couples the stem to the closure member.