Globe valves are named for their spherical body shape. The two halves of the valve body are separated by an internal baffle, which has an opening forming a seat onto which a movable disc can be screwed in to close the valve. These valves are used for applications requiring throttling and frequent operation. Globe valves are typically two-port valve, with an opening in the body for fluid flowing in or out. A bonnet provides leakproof closure for the valve body. A bonnet attached with bolts is used for larger or high pressure applications.