What type of closure does a globe valve utilize?

A globe valve utilizes a sliding disc as the closure mechanism. This design incorporates a disc that moves vertically to close or restrict the flow of fluid through the valve. The movement is typically achieved by turning a handwheel, which raises or lowers the disc onto a seat, allowing for precise control over flow rate. This characteristic makes globe valves particularly effective for applications where throttling or flow regulation is required.

The sliding disc closure ensures that the sealing surface is tightly pressed against the valve seat when closed, which minimizes leakage. Additionally, unlike other valve types that may be more suited for on/off service, the globe valve's ability to finely control flow makes it ideal for processes requiring variable flow rates. The configuration of the valve body also contributes to the efficient flow path, minimizing turbulence and pressure drops.

Thus, the choice of a sliding disc for closure in a globe valve reflects its design purpose centered on effective flow regulation and control.