About Mcdonnell & Miller
McDonnell & Miller is a leader in engineering and manufacturing boiler and liquid level controls, low-water cutoffs, and flow switches for steam and hot water boilers in industrial, commercial and building applications. After several acquisitions they continue the line of boiler controls, liquid level controls and flow switches. Of course with the required certifications such as ISO 9001 and ISO 14001.
McDonnell & Miller products are used for demanding applications in the oil and gas industry where high accuracy is required. Pneumatic valves or relays valves can be used in hazardous and non-hazardous process systems. The range of McDonnell & Miller includes several products for the petrochemical and process industries. McDonnell & Miller specializes particularly in Boiler Controls and power switches.