Globe Valve

Globe valve through the valve stem to drive the valve flap along the axis of the sealing surface of the valve seat to do lifting movement, to achieve the purpose of opening and closing, can be used for a variety of pressures and a variety of temperatures to transport a variety of liquids and gases, but also can be used to do cut off, distribution and change the direction of flow of the medium of the control components. Globe valve rely on the pressure of the valve bar, so that the valve sealing surface and the valve seat sealing surface close to prevent the flow of media, belongs to the mandatory sealing valve. When the medium from below the valve flap into the valve, the operating force needs to overcome the resistance, is the stem and packing friction and the pressure generated by the medium of the thrust, the force off the valve is greater than the force of the open valve, so the diameter of the valve stem should be large, otherwise it will occur the stem top bending failure. The opening and closing parts of the globe valve is a plug-shaped valve flap, sealing above the plane or sea cone surface, the valve flap along the center line of the valve seat for linear movement