Moore Products 50MF Nullmatic Pneumatic Controller

The Moore Products 50MF Nullmatic Pneumatic Controller is a two-mode, force-balance pneumatic controller that regulates process variables in industrial systems using the Nullmatic control principle. As part of the Series 50 Nullmatic family, it accepts a pneumatic process variable input and outputs a pneumatic control signal to Moore M/P control stations and pneumatic actuators to regulate pressure, flow, temperature, or liquid level in chemical plants, refineries, oil and gas facilities, marine applications, and power generation plants. Designed for panel or field mounting, this legacy device from Moore Products Co. (later Siemens Moore) is commonly used for process control repairs, retrofits, and replacement of aging pneumatic controllers, with typical control variables including pressure, flow, temperature, and level and the two-mode control architecture that supports reliable process feedback. Common replacements include Moore Products 50M Nullmatic Controller, Moore Products 55M Nullmatic Controller, and the Siemens Moore APACS+ Process Controller.