AUTOMATIC VALVE APPARATUS IN ULTRA HIGH PRESSURE AND METHOD FOR SWITCHING OF THE VALVE APPARATUS

摘要

PURPOSE: An automatic ultra high pressure valve device and a valve switching method at an ultra high pressure using the same are provided to actuate an action valve at a ultra high pressure by applying a high pressure greater than a pressure providing to a pneumatic cylinder to the action valve. CONSTITUTION: An automatic ultra high pressure valve device comprises a pneumatic cylinder(20), a bellows(30), a T-shaped action pin(40), and an action valve(60). The pneumatic cylinder discharges or sucks compressive air. The bellows receives pressure with the compressive air discharging or sucking in the pneumatic cylinder. The T-shaped action pin is installed inside the bellows and is moved by the pressure providing to the bellows. The action valve is switched according to the movement of the T-shaped action pin between a riddle connected at the bottom of the action pin and a pipe of an ultra high pressure state coupled at the bottom of the riddle.