Fluorine lined globe valve is a forced sealing valve, so when the valve is closed, it is necessary to apply pressure to the valve flap to force the sealing surface does not leak. When the medium from below the valve flap into the valve, the operating force required to restrain the resistance, is the friction of the valve stem and packing and the pressure generated by the medium of the thrust, the force to close the valve is greater than the force to open the valve, so the diameter of the valve stem should be large, otherwise it will be attacked by the stem of the top of the bending of the problem. In recent years, from the presentation of the self-sealing valve, globe valve medium flow direction is changed from the valve flap above into the valve cavity, then in the media pressure, off the valve force is small, and open the valve force is large, the stem diameter can be reduced accordingly. At the same time, under the action of the medium, this way of valve is also more compact. China's valve “three to” had rules, the flow direction of the globe valve, a general use of top-down.

Fluorine lined globe valve open, the opening height of the valve flap, for the nominal diameter of 25% to 30%, the flow has reached the maximum, that the valve has reached the fully open position. So the full open position of the globe valve should be determined by the travel of the valve flap.

1, compared with the gate valve, globe valve construction is simpler, manufacturing and maintenance are more convenient.

2, the sealing surface is not easy to wear, abrasion, sealing, long life.

3, opening and closing the valve flap stroke is smaller, shorter opening and closing time, the valve height is smaller.

4, the valve flap and valve stem design for the one-piece structure, compact structure, safe to use.

5, the globe valve has three kinds of structure: straight-through, DC type, angle type, of which the most commonly used straight-through, angle type can be installed in the corner of the piping system, DC flow resistance is the smallest in the globe valve.

6, according to the user's needs to configure pneumatic, electric installation to meet the needs of remote control and program control.

7, change parts lining material can be applied to a variety of media.

Fluorine lined globe valve is suitable for use in negative fifty degrees Celsius to one hundred and fifty degrees Celsius of various concentrations of aqua regia, flow acid, hydrochloric acid, hydrofluoric acid and a variety of organic acids, strong acids, strong oxidizing agents, but also for a variety of concentrations of strong alkali and organic solvents, as well as other corrosive gases, liquids, media pipeline use.