| 摘要 |
PURPOSE:To easily vary the control performance by means of only the replacement of a valve seat by providing a pressure regulating piston and the valve seat separately. CONSTITUTION:A liquid pressure control valve 4 consists of a stepped pressure regulating piston 6, valve plug 13, and spring 16, and a valve seat 15 is fitted to the pressure regulating piston 6. The pressure acceptance area of an output liquid pressure applied to the pressure regulating piston 6 is S1-S3 and that of an input liquid pressure is S2-S3. The output performance varies in accordance with the ratio between both areas, and since S3 can be changed by means of only the replacement of the valve seat 15, the performance can be easily varied. |
