venturi flow meter diagram

It works on the basic principle of Bernoullis Equation. Video of a Venturi meter used in a lab experiment.

Differential Pressure Flowmeters

After the entry there is a converging conical section with an included angle of 19 to 23.

. Venturi Meter is a device in which pressure energy is converted into kinetic energy and it is used for measuring the rate of flow of liquid through pipes. - This is a high quality flow meter. This device is based on the principle of Bernoullis Equation.

Look at this diagram a fluid is flowing through this venturi. Installing a proper venturi meter is the solution to correct operation. The following are the main parts and areas of venture meter.

The entry of the venture is cylindrical in shape to match the size of the pipe through which fluid flows. Greater than 75000 for basic accuracy. The following disadvantages of Venturi.

The meter can measure the fluid flow and reduce its flow when necessary. The pressure along the meter is obtained using the 11 pressure taps at the locations shown on the diagram. Takereadings of volume vs.

The water flow rate can be adjusted using the valves on the hydraulics bench. The meter is read as a differential pressure head in cm or inches of water. Hence 3 8 6 5 6.

2 Orifice meter Figure 2 shows an orifice meter with the variable position of vena contracta with respect to the orifice plate. The venturi meter given in the kit above has an inner inlet diameter of 76mm and an inner throat diameter of 57mm. It is invented by American Engineer Clemans Herchel and named by the Italian physicist Giovanni Venturi.

In a Venturi flow meter HC-PCF is installed at the side of a pipe as a probe to measure the. Piping Conditions That Can Affect Venturi Flow Meter Performance. - Do not damage its inside.

Diagram of typical elbow meter venturi type. Its behaviour can be predicted perfectly. The restriction diameter should not be less than 0224 D and not more than 0742 D where D is the nominal bore diameter of the pipe.

Venturimeter is named after GB Venturi who developed the principle of venturimeter in 1797 but this principle comes into. Advantages of venturi meters 1. Any point of flowing fluid in the venturi meter there will be pressure energy potential energy and kinetic energy.

The direction of flow in the venturi meter should be checked and set up to agree the flow direction. These values will be used later to approximate flow rate and velocity in the venturi meter. The direction of flow in the venturi meter should be checked and set up to agree the flow direction.

A venturi tube contains a throat which is smaller in a diameter to the pipeline into which it fits. In the venturi meter the fluid flow rate is reduced due to the reduction of the cross-sectional area. Parts Of Venturi Meter.

Less changes of getting clogged with sediments 2. - If improperly installed it must be reinstalled. The inlet diameter equals d 26 mm and the throat diameter d 16 mm.

The CV Venturi Flow Meter is a differential pressure element de signed to accurately measure the ﬂow of liquids and gases by forcing the flow into a smaller diameter section of pipe then measuring the pressure differences between the unrestricted ﬂow and the restricted ﬂow. The venturi meter is very much accurate than the other flow meter like an orifice. A schematic of the Venturi meter is shown on the diagram at the end of the procedure.

Therefore venturimeters should be installed following the manufacturers guidelines. The installation of direction can be vertical horizontal or it can be inclined also. This enables the venture to be fitted to the pipe.

This is the cylindrical section of the minimum area where the. Generally the following guidelines should be followed when installing venturi meters. Fluid flow is calculated when the meter checks the pressure difference between the two readings and the temperature.

Can be used to measure high flow rates in pipes having diameters in a few meters. It can be installed in any position with. Engineers can measure the change in pressure using Venturi meters and nozzles which tell you the flow rate.

- Install meter in the pipe line so that the Flow Directional Arrow agrees with the direction of the. Here the coefficient of discharge is high. Can be used for measuring flow rates of watergasessuspended solids slurries and dirty liquids.

The two conditions are readily met in applications of level sensors 14 and Venturi flow meter 15. Typical Venturimeter Diagram with Parts. - If damaged it must be replaced.

Venturi flow meters offer high accuracy and reliability for the measurement of pressurized line fluids including liquids gases and steam. BIF has been building and testing venturi flow meters for years to develop the ideal combination of accurate flow measurement and low head loss. Working of Venturimeter Construction Principle with Diagram.

The wiring diagram for all of the components is shown below followed by a table of pinout connections. The Venturi effect is the reduction in fluid pressure. In modern applications the principal advantage.

Explanation with Venturimeter or Venturi Tube Diagram. Venturimeter is a device that is used to measure the rate of flow of fluid through a pipe. This calls for minimum straight pipe length requirements upstream and downstream of the venturi meter.

It consists of three parts. For proper functioning and accurate results the flow through the venturi meters should stabilize. When the fluid flows through it the pressure at the throat is lower than the upstream.

Aug 16 2016 3463. Most flow meters have to be installed a specified distance before and after piping components that will affect the fluid in the line. A short converging section.

Part 2 - Part 20 in a series of tutorials in instrumentation and measurement. The Proper Method of Installing a Venturi Meter 2 Caution. Idealized flow in a Venturi tube.

A flow of air through a Pitot tube Venturi meter showing the columns connected in a manometer and partially filled with water. Can be used to measure high flow rates in pipes having diameters in a few meters. Venturi Meter is a device in which pressure energy is converted into kinetic energy and it is used for measuring the rate of flow of liquid through pipes.

In the converging section the area of flow is decreases and hence the velocity of fluid increases and the static pressure decreases. Venturi Flow Meter. Depending on the type of fitting type of venturi meter and beta ratio the throat.

- Handle it from its outside. By employing the continuity equation and Bernoullis principle the volumetric flow rate through the orifice meter can be calculated as described previously for venturi meter. Construction of Venturi meter.

Advantages of venturi meters 1. This enables the venture to be fitted to the pipe. Coefficient of discharge is high.

This meter also used for dust water too that is a major advantage. Normally the convergent angle is of 21 2.

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