Kerotest Manufacturing is a cost-effective producer of high-quality valves for the natural gas industry. These valves include steel and soft-seated gate valves, quarter-turn ball valves, and needle valves. Kerotest also manufactures and distributes a complete line of polyethylene ball valves and electrofusion equipment. TQM Manufacturing facilities in both Pittsburgh, Pennsylvania and Mansura, Louisiana, allow Kerotest to maintain the highest quality and flexibility for their customers in the natural gas market.