Graham Corporation designs and builds vacuum and heat transfer equipment for process industries throughout the world and is a worldwide leader in vacuum technology. Principal markets served include the chemical, petrochemical, petroleum refining, and electric power generating industries, including cogeneration and geothermal plants. Other markets for Graham equipment are metal refining, pulp and paper, shipbuilding, water heating, refrigeration, desalination, food processing, pharmaceuticals, heating, ventilating, and air conditioning