Process piping, is specially designed for particular applications to meet health and safety standards as well as user needs, transports manufacturing and industrial processing materials. Industrial piping systems convey fluids (liquids and gases) from one place to another. The engineering discipline of piping design studies fluid transport efficiency. Component fittings, valves, and other devices that control pressure, flow rate, and temperature of the transported fluid are subjects of the field of piping design or engineering. In food manufacturing, process piping can transport ingredients to stations on an assembly line. Chemical manufacturing facilities use process piping to transport product components along with operational materials like natural gas in separate systems. Refineries use it to move chemical compounds.