What are the reasons for the failure of the square bar plug valve?

What are the reasons for the failure of the square bar plug valve?

The brick bar plug valve is a ball valve with a drill string at both ends. It is to prevent the liquid from splashing during drilling when it is a special place such as drilling. He is an important part of the blowout prevention system inside the drill string, and his structure is simple, the installation is very convenient, and the use efficiency is very stable. However, in use, sometimes the brick block plug valve loses its effect and the ball cannot rotate normally, which seriously affects the normal use of the drill. What are the reasons for this?

Ball valve and seat

During the use of the brick bar plug valve , the ball valve and the valve seat have problems, which is very likely to cause the valve body to not rotate. Ball valve and valve seat can be divided into two kinds of problems, one is that the friction torque between the two is too large, resulting in obstacles in the normal operation of the ball. There is also a serious rust between the two that requires regular maintenance by the user.

There is a problem with the valve seat

It can also cause the square brick plug valve to not rotate properly, and the problem with the valve seat is a big factor. In the use of the seat, there is a serious plastic deformation, which directly affects the use of the valve body. There is also a solid particle card between the valve seat and the ball, which will also affect the use of the brick plug valve. These problems are caused by improper use of the valve body, and the user needs to pay attention to reduce the accident.

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