HIGH PRESSURE TRIGONAL PILOT VALVE OF PUMPING UP POWER PLANT

摘要

PURPOSE: A high pressure trigonal pilot valve is provided to prevent the adhesive event in a friction portion between a cylinder and a plunger and the vibration in the plunger by the shock of high pressure water. CONSTITUTION: A valve body has a high pressure water inlet(202) to be connected with a pipe transferring high pressure water and a high pressure water outlet(204) to be connected with a pipe discharging the high pressure water. A cylinder(210) is inserted inside the valve body and equipped with many conduit holes(212,214) to be passed through the high pressure water. A plunger(220) opens and closes the conduit holes by reciprocating inside the cylinder in the axial direction of the cylinder. A bush is stuck to the inner wall of the cylinder to generate the friction with the plunger. Thereby, the adhesive event is prevented.