China plug valve

1.plug valve 2.Inverted pressure balance Lubricated 3.Anti-static device 4.Adjustment plug plug valve Application: Kelly plug valve is also called kelly cock or drilling rod strainer. Drilling fluid can freely flow through the valve without voltage drop. This kind of valve is used as drilling rod safety valve. And it can be installed at the upper end of the kelly for controlling the blowout prevention, or installed at the lower end of the kelly for preventing loss of drilling fluid when the kelly dismounted. Structure: With the material 40crmnmo, forging steel part is the main body of the valve, and hardening and tempering heat treatment reach hb285-341. The inner bore and main parts of the main body all have got chrome finish. The mian structure refers to the figure. We adopts metel to metel for sealing the plug valve. There are "on" and "of" marks on the outer layer of the main body, and accurately rotate the telltale hole 90° To turn on or off the plug valve.