Wellmark Cemco Liquid Level Controller 44B-T-L-D-A

The Wellmark Cemco Liquid Level Controller model 44B-T-L-D-A is a robust pneumatic device designed for precise liquid level control in industrial vessels, commonly used in oil and gas production, chemical processing, and water treatment applications. This Series 2001 NB controller operates on a torque bar mechanism with adjustable sensitivity and throttle, allowing for direct or reverse acting control to maintain optimal levels by modulating pneumatic valves. Key features include a rugged enclosure for harsh environments, dual pressure gauges for supply and output monitoring, and a left-hand mount configuration with a grooved arm for easy vessel integration. Advantages over similar products include high reliability in extreme temperatures, simple field adjustments without tools, and compatibility with various displacers or floats. Benefits encompass reduced maintenance due to its mechanical design, accurate level detection to prevent overflows or dry runs, and energy efficiency in pneumatic systems. Drawbacks may include the need for a clean air supply to avoid contamination and limited suitability for non-pneumatic digital systems. This unit appears unused (open box condition), making it ideal for quick deployment in production separators or storage tanks, offering superior durability compared to electronic alternatives in explosive atmospheres.