Plug valve

The plug valve is a close cousin to the ball valve and it seems to have come first, then with The structure of the plug valve shown in Figure 6 below, but if you want to see it, try to look at the stop cock of a cone or building a separate statement. The valve is closed - open in the glass tube in a lab That plug valve.

Figure 6 The structure of the plug valve type and lubricant additives. The compressibility of the lubricant through the lubricant screw the lubricant to flow down the pipe to lubricate the bottom of the plug valve.


plug valve acts like a ball valve, but now will not see a plug valve is a ball valve represents the reason why is unknown. I think this is a polymer material that is sealed to prevent leakage between the valve with the ball of the ball valve has been developed that is resistant to chemicals, and operating conditions have improved. The plug valve as it has many advantages over the ball valve is smaller because it does not use a round ball was drilled as a ball valve.