| 摘要 |
<p>Pressure Reducing Valve With Floating Stem for Make-up Vent A fluid control system for controlling a fluid motor wherein a pressure regulating pilot valve controls a directional control valve by manipulation of handle associated with the pilot valve. The directional control valve includes a make-up valve. The pilot valve includes a spool having a recess providing selective communication between the backside of the movable valve member of the make-up valve and an exhaust recess communicating with the reservoir tank. A direct mechanical connection is provided from the handle to the spool as the result of an abutment of an upper end portion of the spool with a surface on the plunger engaged by the control handle in effecting the positive movement of the spool to effect the desired communication between the recess and recess. The spool normally is resiliently movable to effect a desired pressure regulation fluid flow through the pilot valve.</p> |
