Ball valve, opening and closing pieces driven by the valve stem, and around the ball valve axis for rotational movement of the valve. It can also be used for the regulation and control of the fluid. Among them, the V-shaped ball valve with hard seal has a strong shear force between the V-shaped ball core and the metal valve seat of the hardfacing alloy. It is especially suitable for containing the fine particles And other media. The multi-pass ball valve in the pipeline can not only flexibly control the merging of media, diversion, and flow switching, but also can close any channel and the other two channels connected.
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