Water Flow Meter
The question is which water flow metering technology should a user select for their water flow measurement applications?
There are four major types of water flow meters tech available:
- Mechanical Water Flow Meters
- Ultrasonic Flow Meters
- Vortex Volumetric Flow Meters
- Electromagnetic Flow Meters
Mechanical Water Flow Meters
Mechanical water flow meters are the most common flow metering tech which obvious that its best cost-effective water flow meter available that perform flow measurement through turbine rotation with a shunt, propeller or paddle wheel design.
Water flow is measured when water flows through a pipe with the speed which causes a piston or turbine to rotate were volumetric flow rate of water proportional to the rotational speed of turbine blades.
Mechanical water meter clogs up when exposed to contaminants and large particles that leads to bigger maintenance cost.
Without the element of speed mechanical meters can not work.
Vortex Flow Meters
As the name suggests Vortex water flow meters use vortex shedding from a sensor immersed in the flow. Like air when passing an obstacle or stream flowing around a rock produces the vortices swirls, in a vortex flow meter volumetric flow rate is measured through a sensor tab which flexes side to side when each vortex flows past, producing a frequency output proportional to the volumetric flow rate.
Multi variable vortex flow meters can measure up to five process variables with one process connection: temperature, pressure, density, mass flow, volumetric flow rate. Insertion vortex meters work well on very large pipes as they can be inserted into the flow by pressure tapping with a retractor.