Nozzle is a device used to measure the flow at the fluid flow through it in one direction and one of the principles of the pressure difference between the fluid flow, as well as Orifice and Venturi Tube
measurement rate. fluid flow with the fluid Nozzle. Of fluid flow within the pipeline system should cover viscosity low. And no matter hung mixed with the flow. Due to the obstruction of those hanging on the outside of the Nozzle.