Working Principle of PD Flowmeter
PD flowmeter, also known as positive displacement flowmeter, measures the fluid flow by dividing the fluid into fixed volumetric units and then counting the number of these units passing through the flowmeter. This type of flowmeter ensures high accuracy and repeatability in measuring the volume of fluids.
The PD flowmeter works by rotating a pair of gears or oval-shaped rotors inside a chamber. These gears/rotors create a fixed volume of fluid that is trapped between the gears/rotors and the chamber. As the gears/rotors rotate, this trapped fluid is moved through the chamber and into the outlet pipe.
The rotation of the gears/rotors is caused by the flow of fluid passing through the flowmeter. The faster the fluid flows, the higher the rotation speed of the gears/rotors, and consequently, the more fluid is measured. Each rotation of the gears/rotors moves a fixed volume of fluid through the flowmeter that can be easily quantified.
The PD flowmeter can be used for measuring a wide range of fluids, including liquids, gases, and steam. It is commonly used in industries such as food and beverage, chemical, petrochemical, and pharmaceutical.
The PD flowmeter works on the principle of dividing the fluid into fixed volumetric units, and then counting the number of these units to determine the flow rate accurately. It is a reliable and efficient tool for measuring the flow rate of fluids with high accuracy and repeatability.
