A primary differential pressure producing device having a cone section approach to a throat and a longer cone discharge section. Used for high volume flow at low pressure loss.
A tube designed to measure the rate of flow of fluids. It consists of a tube having a constriction or throat at its midsection. The difference between the pressure measured at the inlet and at the throat is a function of the fluid velocity. Compare to Pitot tube.
A tube designed to measure the rate of flow of fluids. The instrument is frequently used in wind-tunnel work and as a speed indicator for aircraft.
A tube mounted in a waterline, meant to cause restriction of flow. The constriction causes a change in velocity of water through the tube, resulting in a pressure differential that is proportional to the flow rate.
a measuring instrument used to measure the rate of flow of a liquid
a device for measuring the flow of liquids in pipes
A closed conduit that gradually contracts to a throat, causing a pressure head by which the velocity through the throat may be determined.