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The closing member of a stainless steel flanged globe valve is a plug-shaped valve disc with a flat or conical sealing surface. The valve disc moves in a straight line along the centerline of the valve seat. The valve stem movement type is commonly referred to as a “hidden stem,” while there is also a lifting and rotating stem type, commonly referred to as an “exposed stem.” A globe valve is a type of valve where the closing member (valve disc) moves along the centerline of the valve seat.

A fluorine-lined stop valve is a type of valve in which the closing member (disc) is driven by a valve stem and moves up and down along the center axis of the valve seat. It is a commonly used shut-off valve, mainly used to connect or shut off the medium in a pipeline, and is generally not used to regulate flow.