THROTTLE GATE Russian patent published in 1995 - IPC

FIELD: valving. SUBSTANCE: disk gate is rigidly secured to the rotatable shaft and interacts with the ring rubber seat interposed between the flanges of the pipe line. The seat has two flanges secured to the flanges of the pipe line by way of bolts with the eccentric heads. Two ring support collars for the bolt heads are made in the outer side of the seat on both side of the zone of their interaction with the disk gate. EFFECT: enhanced reliability. 3 dwg