Which type of valve uses a lifting motion to open?
Explanation:
Globe valves are a type of valve that operates using a lifting motion to open. They are characterized by a movable disk-type element and a stationary ring seat in a spherical body. When the valve handle is turned, it raises or lowers the disc, moving perpendicular to the seat and providing a reliable shutoff mechanism. Globe valves are also capable of throttling flow due to this design.
On the other hand, Pinch valves operate using an elastomeric tube that is pinched closed to control flow. They do not involve a lifting motion like Globe valves. Similarly, Plug valves use a rotating plug to open and close the flow path, and Ball valves rotate a ball with a hole drilled through the center for flow control.
Therefore, when it comes to valves that use a lifting motion to open, the correct answer is Globe valves.