Valve e.g. high-speed switching valve, for connecting ports, has sealing gap narrowing down towards side along which pressure drop occurs by sealing plate, and actuator that does not experience jamming when high pressure-difference exists

摘要

The valve has an actuator provided in a valve casing, and a steering coil with steering edges. A sealing gap (80) narrows down towards a side along which pressure drop occurs by a sealing plate (28) of a valve bushing. The gap is provided with an inclined plane and centers itself on the steering coil. The actuator does not experience jamming, when high pressure-difference exists across the plate.