| 摘要 |
<p>An adjustment assembly (30) for axially positioning the spool (14) and associated centering spring (24) within the bore of a valve body (12) includes a cylindrical sleeve disposed around and connected to the cylindrical surface of the spool. The cylindrical sleeve (31) includes radial surfaces (32, 40) that act to adjust the spring seats (26, 28) for the centering spring (24) so that axial movement of the cylindrical sleeve results in axial movement of the spool and the spring seats for the centering spring.</p> |
