Abstract: Systems, devices, and methods of controlling valve actuation using an inertial sensor are provided. The system can include a valve including an inlet, an outlet, and a plug positioned between the inlet and the outlet. The plug can include a stem configured to translate or rotate in a first direction causing the plug to open the valve or to translate or rotate in a second direction causing the plug to close the valve. The system can also include an actuator coupled to the stem, an inertial sensor coupled to the stem, and a controller coupled to the inertial sensor and to the actuator. The controller can cause the controller to receive sensor data from the inertial sensor and to generate control signals provided to the actuator. The control signals can cause the actuator to translate or rotate the stem in the first direction or the second direction.

Abstract: Systems, devices, and methods of controlling valve actuation using an inertial sensor are provided. The system can include a valve including an inlet, an outlet, and a plug positioned between the inlet and the outlet. The plug can include a stem configured to translate or rotate in a first direction causing the plug to open the valve or to translate or rotate in a second direction causing the plug to close the valve. The system can also include an actuator coupled to the stem, an inertial sensor coupled to the stem, and a controller coupled to the inertial sensor and to the actuator. The controller can cause the controller to receive sensor data from the inertial sensor and to generate control signals provided to the actuator. The control signals can cause the actuator to translate or rotate the stem in the first direction or the second direction.

Abstract: Systems and devices for controlling flow of a fluid through a valve are provided. A valve plug can include a hub. The hub can include a hub body having a longitudinal axis extending through the hub body and a bore extending along the longitudinal axis extending through the hub body. The hub can also include at least one elliptically-shaped protrusion integrally formed within the hub body. The valve plug can also include a dome having a first surface, a second surface opposite the first surface, and at least one side wall extending between the first surface and the second surface around a circumference of the dome. The valve plug can also include at least one arm extending between the hub body and the second surface of the dome. The valve plug can be coupled to a drive shaft and a controller in a variety of non-limiting valve types.

Abstract: A valve bonnet defines a packing box having an inner surface Roughness Average (Ra) of 0.15 or less, for example, between 0.10 and 0.15. Multiple Polytetrafluoroethylene (PTFE) packing rings are in a packing stack. A packer is bolted to the bonnet and extends into the packing box. The packer is configured to apply a packing pressure on the packing, for example, between 100 megapascals (MPa) and 200 MPa. Such arrangements can allow for high pressure valves, for example valves that can retain up to 10,000 pounds per square inch (PSI) of pressure or up to 15,000 PSI.