Headquartered in Pittsburgh, Pennsylvania, Kerotest Manufacturing Corp is an employee-owned TQM company that specializes in the production and distribution of metal and plastic valves, including gate, gauge, globe, and ball valves, as well as needles for the natural gas, chemical, and steam markets. The company prides itself on producing American-made or assembled valves that are of the highest quality, value, and service. Kerotest Manufacturing Corp serves a variety of industries, including district energy systems, oil and gas drilling fields, nuclear fuel markets, and natural gas distribution industries, with a focus on reducing emissions of greenhouse gases, air pollutants, and ozone-depleting refrigerants.