Brief Introduction Of Fluorine-lined Dc Stop Valve

Lined Globe Valve mainly uses a plug-shaped valve disc to open or close the valve. The internal sealing surface is generally conical or flat, and the valve disc moves in a straight line in the center of the medium.
There are generally two types of valve stem lifting forms for fluorine-lined DC stop valves. One is that the valve stem itself is lifted and lowered while the handwheel does not move. The other is that a nut is set on the valve body and the valve stem and handwheel are lifted and lowered together. Generally, this type of stop valve has only two states: fully open and fully closed, and there is no throttling and regulation function.
The seal of the fluorine-lined DC stop valve is generally a forced seal, so when the valve is opened and closed, the valve disc needs to apply a certain amount of pressure to it from the outside to ensure that the sealing surface does not leak. When the medium enters from below the valve disc, it is necessary to overcome the resistance caused by the friction between the valve stem and the valve body itself. Therefore, the torque required to close the valve of the fluorine-lined DC stop valve is generally greater than the torque required to open the valve.