| 摘要 |
PURPOSE:To easily carry out pressure and flow compensation control, by removably providing a closing member in a passage for communicating a tank line in a control valve block through a spool to a spring chamber, and arbitrarily connecting an opening portion at one end of the spring chamber to a flow adjusting line. CONSTITUTION:A passage 100 is provided to communicate a tank line 27 through a spool to a spring chamber 23 in a control valve block 21 integrally mounted to a pump housing 1. A closing member 30 is removably mounted in the passage 100. A plug 39 is provided in an opening portion at one end of the spring chamber, so as to connect the spring chamber 23 to a flow adjusting line 50. As the plug may be replaced with a mere closing member, pressure and flow compensation control may be arbitrarily and selectively carried out in association with mounting of the closing member 30 in the passage. |
