Abstract: An attenuating device that is configured to replace motion converters in conventional control valve assemblies. The attenuating device can generate an output displacement in response to a position of a plug relative to a seat in the valve assembly. In one embodiment, the attenuating device comprises a spring assembly with a pair of spring members, disposed in series, and configured to assume a deflection that reduces the displacement of the plug to a smaller displacement that is useful to position a target member of a sensor. This embodiment, however, forgoes the mechanisms of conventional devices in lieu of components that are amenable to compact design. In this way, the attenuating device can substantially fit within the existing structure of the valve assembly, and, in one construction, the attenuating device is disposed in the actuator of the valve assembly.

Abstract: An attenuating device that is configured to replace motion converters in conventional control valve assemblies. The attenuating device can generate an output displacement in response to a position of a plug relative to a seat in the valve assembly. In one embodiment, the attenuating device comprises a spring assembly with a pair of spring members, disposed in series, and configured to assume a deflection that reduces the displacement of the plug to a smaller displacement that is useful to position a target member of a sensor. This embodiment, however, forgoes the mechanisms of conventional devices in lieu of components that are amenable to compact design. In this way, the attenuating device can substantially fit within the existing structure of the valve assembly, and, in one construction, the attenuating device is disposed in the actuator of the valve assembly.