Three way threaded plug valve in the pipeline is mainly used for cutting, lifting and changing the direction of media flow. It is easy to adapt to multi channel structure, and a valve can be two, three, or even four different channel, this simplifies the design of piping systems, reducing valve and the amount of equipment required for the number of connected components. Three way internal threaded plug valve is installed on the pipeline mainly for cutting, distribution and change the direction of media flow. Applicable medium for water, oil, steam, no pulsating working pressure. Medium temperature are less than 100, the nominal pressure of 0.6, 1, 1.6MPa.