---
publication_id: "OT-2026-000000381"
title: "Using pressure to monitor position of components on a control valve"
published_at: "2026-09-15T19:02:48.994045Z"
canonical_url: "https://opentechnical.org/p/OT-2026-000000381"
categories:
  - "industrial-motion-power-transmission/fluid-power"
keywords:
  - "f16k37/0066"
---

# Using pressure to monitor position of components on a control valve

## Abstract

A position monitoring system is configured for use on control valves and other flow controls. These configurations include a motion sensitive unit, for example, a flexible tube with one end that can move in conjunction with a valve stem on the flow control. The flexible tube may hold synthetic oil. Another end of the tube may couple with a pressure senor. In use, this senor may generate a signal that corresponds with head pressure of the synthetic oil in the tube. Operating hardware on the flow control, for example, processing hardware that is part of a valve positioner or controller, may process the signal from the pressure sensor to identify a operating condition of a valve, for example, a position for a closure member of the valve.