A pilot operated flow regulating valve has pressure governing chamber receiving a moveable pressure receiving member for common movements together with a main valve member of the pilot operated flow r
Disclosed is a pilot operated relief valve, in which a balance system is provided to offset a tank pressure exerted on a piston, so that a setting pressure of a pilot poppet is not
A pressure responsive pilot valve for operating a differential pressure main relief valve of the bellows or diaphragm type mounted on a tank, wherein the main relief valve includes a dead-ended bellow
in a typical solenoid operated piloted valve, the armature movement is in the same direction as the piston or diaphragm movement, so that the movements are dependent on each other. Due to necessary clearances for flows in the valve, the armature stroke is required to be longer than the piston...
A system for hydraulically managing fluid pressure between selected set points includes a pilot control system operably coupled to a main valve. The pilot control system includes at
Figure 1. Proportional directional valve structure diagram. 1—Electromagnet; 2—pilot valve; 3—pressure reducing valve; 4—main valve body; 5—main valve spool; 6—spring. As shown in Figure 2, when the proportional electromagnet is not driven, the centering spring keeps the main spool in...