The core components of a globe valve include the valve body, valve disc (valve core), valve stem, and valve seat, with auxiliary structures such as gaskets and guide components included in some types. Its working principle involves regulating or blocking medium flow by rotating the valve stem (manually or automatically) to drive the valve disc up and down, thereby adjusting the gap between the valve disc and valve seat.

• ​Valve Body: The outer shell that encloses internal components, typically structured as straight-through, angle-type, or direct-flow.
• ​Valve Disc (Valve Core): The sealing component in direct contact with the medium (often conical, flat, or spherical), which controls the opening degree through vertical movement (lifting/lowering).
• ​Valve Stem: A transmission rod connecting the valve disc to the operating mechanism (e.g., handwheel, electric actuator), responsible for transmitting torque.
• ​Valve Seat: A fixed sealing surface mounted on the valve body, which cooperates with the valve disc to achieve sealing.

Working Process:

• Rotating the valve stem clockwise → The valve disc moves downward → The valve disc adheres to the valve seat → Medium flow is blocked.
• Rotating the valve stem counterclockwise → The valve disc moves upward → The valve disc separates from the valve seat → Medium flows (with greater opening degrees resulting in higher flow rates).