As part of a gate valve, a yoke is a partition binding the actuating mechanism and the bonnet in between. The yoke nut is attached to the yoke’s top, which holds a stem nut, stem bushing, or yoke bushing and carries the valve stem through it. You can tell which wheels are yoked by the openings for moving the actuator links to the yoke. In terms of construction, this partition should be powerful enough to resist forces, crank pressures, and torque produced by the actuator.
Meanwhile, a yoke nut (also known as a T-nut, nipple nut, nut, or house nut) is an internally threaded nut used in connecting a yoke to its stem. An example is a yoke nut is when a gate valve is rotated, the stem goes up or down through the valve. In globe valves, the two nuts are fixed in place, and the upper nut is rotated through the stem.