We at Kerotest produce American-made or assembled valves that are among the best you can buy anywhere in the world. As an emp ... loyee-owned TQM company, we don't just talk about quality, we produce it. That's why everyone here is empowered to give you the best product, the best value, and the best service. Wherever energy flows, we will be there. In district energy systems that reduce emissions of greenhouse gases, air pollutants and ozone-depleting refrigerants. In the oil and gas drilling fields. In the nuclear fuel markets. In the natural gas distribution industries. We will be there. With the same engineering passion and commitment that marked our first hundred years. read more