Turbine flowmeters are basically used to measure the flow of a variety of different things; they measure the velocity of liquids, gases and vapors in pipes, such as hydrocarbons, chemicals, water, cryogenic liquids, air, and industrial gases. Turbine flowmeters are inserted into the flow; they rely on the mechanical energy of the fluid to rotate a rotor, also known as a pinwheel. The faster the fluid flows, the faster the rotor spins. The turbine flow meter then translates this mechanical action of the rotor’s movement into a user readable rate of flow, such as gpm, lpm, etc.