| 摘要 |
FIELD: machine building.SUBSTANCE: fuelling valve contains a body with installed in it supply union, seat in contact with gate, flywheel for the thread rod rotation, channel for medium output. Nut secured on the valve body is made with grooves. In grooves through the fluoroplastic cuffs the resilient rings sealing the stock are installed. From one side the valve interacts via the fluoroplastic seal with the seat, and from the other side - via the pin with thread rod. The valve is equipped with the visual pressure monitoring device, its cavity is connected with the device cavity. Between the casing and cover of the visual pressure monitoring device the spring-loaded stock is installed, it interacts with the stop in top position from one side, and with washer from another side. Between the washer and base of the stock the membrane is located, it along the outside diameter is pressed by the cover and casing of the visual pressure monitoring device. Top tip of the spring-loaded stock upon pressure presence in the internal cavity of the valve projects beyond the cover end ensuring visual monitoring of the pressure presence.EFFECT: increased reliability, durability and easy operation due to reduced friction coefficient at the stock seal, not requiring tensioning during operation, and implementation of the visual pressure monitoring device in internal cavity.2 dwg |
