Piping Specialties Inc. (PSI) is one of the northeast's largest suppliers of valves, process controls/instrumentation, and engineered mechanical specialties. These products are supported by factory-trained application engineers, shop personnel, and field service technicians. We also provide in-house design and CAD capabilities. Industries served: Power Generation, Pulp/Paper, HVAC, Water/Wastewater, Food/Beverage, Life Sciences, Chemical/ Process, Semiconductor.