Liquid Flow Meters and Switches

Instruments that are used for measuring the flow rate of a particular liquid, flowing through a pipe, are called flow meters. The measurements can be done based on either the mass flow rate or the volumetric flow rate and the units in which it is measured are kilogram per second and liters per second respectively. The standard liquid flowmeter is used in various fields and has significant utility. In the medical field, industrial sector, like food processing, semiconductor fabrication, water management, etc. There are various types of flow meters, depending on the principle that administers the application. Ultrasonic, Mechanical, Pressure, and Electromagnetic are the types of liquid flowmeters. Open & Closed Channel Flow The flow of any liquid can be classified into open or closed pipe flow. The open channel in the free-flowing stream is not restricted by any wall and the flow is controlled by the force of gravity. The fluid flow in the closed channel occurs due to the p...

A flow meter is a special device that measures the amount of gas or quantity of liquid or its flow rate moving through the pipe. Too little or too much gas or liquid flowing through the pipe may result in the malfunctioning of the machine. There are specific best practices that need to be implemented to receive the most accurate results from your flow meter. These five best practices for calibrating flow meter are: 1: Calibration Standard Proper calibration depends on a standard that is accurate. Thus, the calibration has to be even more precise than the flow meter it will measure. According to industry standards, the rule of thumb regarding calibration standard is, that it has to be four times more correct than the flowmeter that is tested. However, this rule of thumb may adapt depending upon specific requirements of the test. 2: Traceability This best practice is an important and necessary form of documentation. It measures the standard as per which the flowmeter is cal...

Flow meters are the equipment for the accurate measurement of the flow rate of the fluid passing through a pipe or an open space. The measurement can be made either on the basis of the mass flow rate or the volumetric flow rate. The rate of flow can be altered and distributed with the help of particular equipment called the flow control valve sensors. It provides accurate and programmable information, which helps in the execution of the distribution. Various industries have an abundant option of the control valve sensors to choose from. On the basis of the application and the purpose, the type of the sensors are chosen, which gives errorless productivity.   Design of the Flow Control Valves The flow control valve sensors have diversified designs, from simple openings to refined electro-hydraulic valves. These different compositions of the valve sensors enable it to automatically adjust itself according to the change in temperature and pressure. Controlling the Flo...

Different Kinds of Liquid Flow Meters There are different kinds of liquid flow meters, depending on the circumstances in which the flow meters are used.    1. C losed pipe flow meter: The closed pipe flow meter is a type of flow meter that is used for fluids flowing in a closed conduit like sewer, kitchen pipeline, water pipeline, fuel pipeline, etc. and the open channel includes measuring the flow in a non-constricted area.  2. Differential Pressure Flow Meter : Being the most common flow meter in use, it has primary and secondary component. The first component changes the kinetic energy and the second one measure the differential pressure, which produces a signal that can be changed to get the flow rate.   3. Velocity Flow Meters : This flow meter operates directly with the volume flow rate. It translates the data of the velocity of water into its volume. When the flow meter is used with Reynold’s number greater than 10,000, the flo...