FIELD: valve engineering. SUBSTANCE: throttling member made up as a disk with slots is mounted inside the housing. One of the disks is secured inside the housing and rigidly connected with the rod. The other disk is mounted on the rod for permitting movement and connected with it by way of a threaded joint. Four mutually perpendicular blades are soldered to the one side of the movable disk. The blades are inclined at 45°-90°. Four mutually perpendicular plates are pivotally connected with the other side of the disk. A cylindrical bushing is mounted on the rod. The end face of the bushing is provided with a projection facing the movable disk. The plates are brought into a contact with the projection. The bore for a torsion spring is made in the projection. One end of the spring is connected with the movable disk. EFFECT: enhanced reliability. 2 dwg
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