American Steam Control manufactures Self-Contained Thermostatic Radiator Valves and related products. American Steam Control manufactures the most advanced control valves in the industry today. These valves can be used on both steam and hydronic heating systems and are available in both "FAIL OPEN" and "FAIL CLOSED" designs. A complete line of controls are available along with three valve body styles. Manual valves, specialty valves, steam traps, and accessories round out the product line. Quality, reliability and long service life make American Steam Control valves standout above the competition. We pride ourselves on customer service and knowledge of the piping industry.