Its behavior can be perfectly predicted. It can be installed vertically, horizontally and inclined. They are more precise and can be used for a variety of currents. About 90% of the pressure drop can be recovered.
Advantages of Venturi Counters over Aperture Counters:
Venturi counters are used to operate incompressible liquids. Venturi meters can handle a wider range of liquid flow rates than orifice meters. Turndown ratio is 10:1. Discharge coefficient is relatively high 0.98.
To accurately measure the mass flow rate of liquids, a venturimeter is the best instrument. This is in the form of a converging and diverging section, with the converging section being shorter and gradually rising compared to the diverging section and this instrument is equipped with a U-tube manometer.
The following are the two main uses of an aperture meter: It is used to measure the flow rate of liquids in their single state (i.e. gaseous state or liquid state). It can also be used to measure the flow rate of liquids in a mixed state (both gaseous and liquid), such as B. wet steam or natural gas with water.
The difference between venturi gauge and orifice gauge is: There are three parts in a venturi gauge namely the converging section, the throat and the diverging section. Whereas the orifice meter consists of a thin plate and a hole.
A venturi flow meter is a type of differential pressure flow meter that produces a flow measurement by measuring the pressure difference at two different points in a pipe.
Pros and Cons of Pitot Tubes
Contain no moving parts; this minimizes friction losses. Easy to install. Due to its small size, it can initiate the flow of liquid without interrupting the flow. Pressure loss is very low.
The main difference between venturimeter and orifice plate is that the venturimeter is not flexible in terms of flow range while the orifice plate in the orifice plate can easily change for different flow rates.
Venturimeters are flowmeters that cause an increase in flow velocity over a converging section of pipe and a corresponding pressure drop from which the flow rate can be derived. They have been in use for many years, especially in water supply.