| 摘要 |
FIELD: machine building.SUBSTANCE: one or more of the following components can be located in a valve assembly on fluid medium passage way: a pressure control, a dosing valve and an on-off device. A rotary gear is connected in-line to the dosing valve, and a manual control element installed so that it can be rotated about the axis is connected to the valve assembly and includes a gear rack that is moved by means of the above manual control element. A spring pushes the gear rack to the gear. The fluid medium control also includes ? balanced mechanism of gear transmission for rotation of a control valve spindle; besides, it can be adapted for installation of different visual indicators signalling on the on-off state of the device.EFFECT: improving adjustment accuracy and reducing play between internal components.37 cl, 21 dwg |
