PN40 Cast Steel Bellow seal Globe Valve

The stop valves opening and closing part is a plug-shaped disc. The sealing surface is flat or conical. The disc moves linearly along the center line of the valve seat. The movement form of the valve stem can also be used to control the flow of air, water, steam, various corrosive media, mud, oil, liquid metal and radioactive media. This type of shut-off valve is very suitable for shut-off or regulation and throttling. Because the opening or closing stroke of the valve stem is relatively short, and it has a very reliable cut-off function, and because the change of the valve seat opening is directly proportional to the stroke of the valve disc, it is very suitable for regulating the flow.