Types of flow meters
Modern pipelines for supplying water and gas to industrial and domestic consumers are complex systems. In addition to pipes, shut-off valves and valves, they are necessarily equipped with flow meters.
Why do we need flow meters?
The transition of municipal enterprises to market relations has increased the requirements for water, gas and thermal communications. The service provider must know exactly how much a particular consumer has selected for their needs. For these purposes, communications began to be equipped with special flow meters (in a simple way - meters). They are installed on the supply line or in the immediate vicinity of it.
Popular types of counters
Devices for accurate accounting of the medium transported through pipes are presented in several varieties, differing from each other in the principle of operation:
- Turbine. They are used on lines with gate flanged valves, through which chemical inactive media of low viscosity and gases are transported. In the process of passing through the meter, the substance acts on the turbine blades. Their rotational moment is analyzed mechanically or electronically. This principle is used in household water meters familiar to everyone.
- Mechanical. The volume of the passing substance is calculated by the vibrations of the piston in the device. These dimensional devices are used to account for viscous media in industrial enterprises. Their operation is not affected by extreme temperatures.
- Weight. Universal flowmeters capable of calculating any medium, regardless of its density and conductivity. The operation of the weight counter is based on the deformation of special tubes through which the substance is passed.
- Induction. An excellent version of the meter for conductive liquids, the degree of conductivity of which starts from 5 µS / cm. Other physical characteristics of the transported medium do not affect the accuracy of measurements in any way.
- Ultrasonic. Filled pipelines and channels for liquid transportation are equipped with meters of this type. The principle of operation of ultrasonic meters is based on determining the difference in the time of passage of a signal sent in opposite directions of water movement.