Drill pipe plug valve is a type of valve used in drilling operations to control the flow of fluids inside the drill pipe. The valve is operated by rotating up and down, which can stop or adjust the flow of liquid when necessary.

The function of the upper and lower plug valves on the drill pipe is to control the flow of liquid inside the drill pipe, avoid fluid backflow, control wellhead pressure, and drill bit ejection, thereby ensuring the safety and smooth progress of drilling operations.

The usage method of the drill rod upper and lower plug valves is relatively simple. Before using the valve, it needs to be placed on a special installer and correctly installed on the drill rod. When operating the valve, it is necessary to control the flow of drilling fluid by rotating the valve up and down. When it is necessary to stop the flow of drilling fluid, simply rotate the valve to the corresponding position.

Compared with other commonly used valves in drilling operations, the biggest difference between the upper and lower plug valves on drill pipes lies in their operation and usage methods. Compared to other valves such as ball valves and blast valves, the upper and lower plug valves on drill rods are simpler and easier to operate, and are also more suitable for large diameter drill rods. In addition, due to the fact that the drill rod upper and lower plug valves do not require any external energy during use, they are also more cost-effective and have been widely used.