Internal thread stop valve

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  The opening and closing part of the stop valve is a plug-shaped valve flap, the sealing surface is plane or the disc moves linearly along the center line of the valve seat. The form of movement,(universal name: dark pole), also has lifting rotary rod,(universal name: clear rod) stop valve means theclosing member (disc) moving along the center line Depending on the movement of the disc, the valve seat port is proportional to the disc stroke. Since the valve stem of this kind of valve is relatively short of opening or closing stroke, and has very reliable cutting function, and the variation of the valve seat port is proportional to the disc stroke, it is very suitable for adjustmentof the flow.. This type of valve is therefore ideal for cutting or regulating, and throttling.