Designer & manufacturer of self-actuating thermostatic temperature control valves. Key industries served include Railroad, Industrial, Commercial Plumbing, and Aerospace & Defense. - Headquartered in the USA for over 35 years. - AS9100D certified - includes ISO 9001:2015 quality management system requirements and specifies additional aviation, space, and defense industry requirements. - Thermal actuator technology responds automatically & consistently to changes in temperature. - Vertically integrated – designing, machining, assembling & testing/inspecting over 95% of our products onsite. - Industry leader in freeze protection for diesel locomotives having over 95% market share in North America. - Supply freeze and scald protection valves to major safety shower OEMs worldwide. - Supply standard and custom products & services to aerospace companies and major defense contractors. - Creator of CircuitSolver- industry disruptor thermostatic balancing valves that automatically ensure consistent recirculation Domestic Hot Water System (DHWS) temperature control without manual balancing. /company/CircuitSolver.