An electronic modal base valve is disclosed. The electronic modal base valve includes a motive component, a controller communicatively coupled with the motive component, and a control valve coupled with the motive component. The control valve includes a multi-state rotary spool. The controller is configured to control an operation of the motive component, wherein a movement of the motive component is configured to cause the control valve to adjust a flow rate for a flow path through the electronic modal base valve. The multi-state rotary spool has a softest setting, a lockout setting and at least one intermediate setting for the flow rate along the flow path.

Systems and devices to control linear, rotational, and/or arcuate motion are provided herein. In some examples, a pin system is configured for insertion in a door and/or door jamb, and to control motion of the door, such as a speed with which the door closes. In some examples, a hinge pin is configured to replace a conventional hinge pin and to control motion of the door. In some examples, a hinge system is configured to replace a conventional door hinge and to control motion of the door.

An adjustment device for a damper valve comprises at least one adjustment shaft and at least one adjustment element, which have a common axis of rotation, wherein the adjustment element is connected in a rotationally conjoint manner to the adjustment shaft, and wherein, for setting of a damping force, at least one control disc is connected or connectable to the adjustment shaft, wherein the adjustment element is rotatable about the axis of rotation without a stop in such a way that a rotational movement of the adjustment element is realized free of a delimitation in any direction of rotation.