Modular is the new mantra in the process sector, and single-purpose, built-to-spec process skids are the latest trend in the refining and chemical industries. A “skid” is a portable work station used in a process facility. It is modular in the sense in that …
Level Measurement
Managing Thermal Expansion in Liquid Level Measuring
Patrick McGrath | LevelManaging thermal expansion in liquid level measuring is a common issue in refinery and chemical applications that put level gauges outside the vessel or tank. In this configuration, the gauge is exposed to atmospheric conditions that may affect the temperature of the …
Isolation Valve Design: Repair Dual Level Gauges without Downtime
Patrick McGrath | LevelBecause even the highest quality instruments eventually fail, process plants typically have redundant measurement devices for mission critical applications such as for process vessels. A dual level gauge, which includes both a magnetic level indicator (MLI) and a …
Overlooked Instrumentation Can Lead to Safety Incidents
Robert Torgerson | Know-howThe devil truly is in the details. Level indicators and temperature measurement devices are classic examples of the kind of small—but important—instrumentation that people in the oil and gas industry must be ever vigilant about. Instruments must provide …




