CB/T4012-2005 Class J flange bronze 0.5MPa stop valve 

Stop Valve refers to a valve in which the closing part (valve plate) moves along the centerline of the valve seat. According to this movement form of the valve disc, the change of the valve seat opening is proportional to the stroke of the valve disc. Because the opening and closing stroke of the valve stem of this Gate Valve is relatively short, and has a very reliable cut-off function, and because the change of the valve seat opening is proportional to the stroke of the valve disc, it is very suitable for flow regulation. Therefore, this type of Marine Valve is very suitable for cut-off or regulation and throttling. type of valve is very suitable for cut-off or regulation and throttlin.