| 摘要 |
FIELD: valving. ^ SUBSTANCE: valve comprises ring flange with the base, valving member made of a plate provided with sealing member arranged over periphery, and lever provided with the counterweight at its one end. The counterweight is mounted for permitting movement along the lever. The other end of the lever is connected with the plate through the shaft. The shaft is provided with a pivoting member at its end. The lever is connected with the bearing members of the base. The pivoting member is made of a self-adjusting bearing. The shaft is made for permitting axial movement inside the lever. The bearing members are made of slider and roller bearings. The counterweight is provided with eccentric opening that is used for setting the counterweight on the lever for permitting axial movement and rotation. ^ EFFECT: enhanced reliability. ^ 2 dwg |
