阀杆/连杆

A critical mechanical component in disc/valve mechanisms that serves as the connecting element between the actuator and the valve disc. It converts rotational or linear motion from the actuator into precise angular displacement of the disc, enabling flow control through the valve. The stem/linkage must maintain structural integrity while transmitting torque and withstanding mechanical stresses during operation.

The stem/linkage operates on the principle of mechanical force transmission through rigid connection. When the actuator applies force, the stem transfers this motion to the valve disc through either direct coupling or linkage mechanisms, causing the disc to rotate or translate. This movement regulates fluid flow by changing the disc's position relative to the valve seat, with precision determined by the stem's rigidity and connection geometry.