?????? Fluorine lined DC globe valve The opening and closing component is a plug shaped valve disc, with a flat or conical sealing surface, and the valve disc moves in a straight line along the centerline of the fluid. The movement forms of the valve stem include lifting type (valve stem lifting, handwheel not lifting), and lifting rotating type (handwheel and valve stem rotating together for lifting, nut set on the valve body). Fluorine lined DC globe valves are only suitable for fully open and fully closed, and are not allowed to be adjusted or throttled. Fluorine lined DC globe valve belongs to the forced sealing type valve, so when the valve is closed, pressure must be applied to the valve disc to force the sealing surface not to leak. When the medium enters the valve from below the valve disc, the resistance that the operating force needs to overcome is the frictional force between the valve stem and packing and the thrust generated by the pressure of the medium. The force to close the lined fluorine DC globe valve is greater than the force to open the lined fluorine DC globe valve, so the diameter of the valve stem should be larger, otherwise the valve stem bending fault may occur. The same type of valve has different combinations in different occasions and working conditions. If you are a non professional, please feel free to call our company for consultation!
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