Orifice Nozzle And Venturi Flow Rate Meters

The orifice flow meter flow nozzle meter and venturi meter are three commonly used types of differential pressure meter for pipe flow measurement.

Nozzle blasting cabinet. With venturi flow meters you will see notably better pressure recovery compared to orifice style flow meters. The turn down ratio and accuracy can be compared with the orifice plate. By measuring the change in pressure the flow rate can be determined as in various flow measurement devices such as venturi meters venturi nozzles and orifice plates.

The flow nozzle is relative simple and cheap and available for many applications in many materials. Orifice nozzle and venturi flow rate meters the orifice nozzle and venturi flow rate meters use the bernoulli equation to calculate fluid flow rate using pressure difference through obstructions in the flow. Three types of commonly used differential pressure flow meters are the orifice meter the venturi meter and the flow nozzle meter.

The orifice nozzle and venturi flow rate meters use the bernoulli equation to calculate fluid flow rate using pressure difference through obstructions in the flow sponsored links in a flow metering device based on the bernoulli equation the downstream pressure after an obstruction will be lower than the upstream pressure before. Orifice meters and venturi meters are devices that are used to measure the pressure of flow of fluids. All three use a constriction in the flow path like an orifice plate to cause a pressure drop across the meter that can be measured and correlated with flow rate.

These three all function by introducing a reduced area through which the fluid must flow. Main features of venturi meter pressure recovery for venturi tubes is a lot better as compared to the orifice plates. Venturi nozzles enable the measurement of flow rates in pipelines by reference to changes in fluid pressure when passing through a constricted area.

The decrease in area causes an increase in velocity which in turn results in a decrease in pressure. Orifice nozzle and venturi meters. Orifice nozzle and venturi flow rate meters the orifice nozzle and venturi flow rate meters use the bernoulli equation to calculate fluid flow rate using pressure difference through obstructions in the flow.

As fluid passes this constriction its velocity increases according to bernoulli equation which says that as elevation cannot change in a pipe if the pressure decreases the velocity of flowing fluid inside a pipe increases.