Steam Plant Fundamentals ... associated with a steam generating plant, and describe the oils and lubrication requirements for plant equipment. The next section describes valves, traps, and associated system piping, and explains the pumps and air compressors used in a steam plant. Instrumentation
If water is heated beyond the boiling point, it vaporizes into steam, or water in the gaseous state. However, not all steam is the same. The properties of steam vary greatly depending on the pressure and temperature to which it is subject.