The double block & bleed valve has two seats supporting a floating ball. Under the pressure of the medium, the ball itself will produce a certain displacement, so that pressure to the outlet of the valve seat ring, the sealing effect.
Floating ball valve according to the structure can be divided into one-piece ball valve structure and split ball valve structure.
Double block & bleed valve is designed to replace the complex form of multiple valve connections in traditional piping. Reduce leakage points in the system, quickly realize emission and shutdown functions.
Double block & bleed valve greatly save the installation space. Simplified setup. Reduce pressure in the piping system. Convenient instrument cleaning and maintenance reduce cost.