"A globe valve, different from ball valve, is a type of valve used for regulating flow in a pipeline, consisting of a movable disk-type element and a stationary "ring seat in a generally spherical body.Globe valves are named for their spherical body shape with the two halves of the body being separated by an internal baffle. This has an opening that forms a
seat onto which a movable plug can be screwed in to close (or shut) the valve. The plug is also called a disc or disk. In globe valves, the plug is connected to a stem which is operated by screw action using a hand wheel in manual valves. Typically, automated globe valves use smooth stems rather than threaded and are opened and closed by an actuator assembly.
There are different kinds of globe valves, each adapted for different pressures and different usage.
1.Forged Globe valve Generally, forged type would be used when the size of gate valve is smaller than 2"(DN50).Forged steel is the main material.Flanged, Socket Welded, Thread and Butt Welded connections are available.
2.Casting Iron Globe Valve Casting Iron globe valve usually used in the program of water at low pressure and temperature with soft seat.The body is made by casting iron or ductile iron with rubber seat.
3.Casting Steel Globe Valve Casting Steel globe valve is largely used in all kind of liquids.The body is made by casting steel. |