Difference between differential pressure flow meters and orifice plate flow meters
Thread Content
What is the difference between a differential pressure flow meter and an orifice plate flow meter? ? ?
I feel that the term \"differential pressure flow meter\" is not accurate; it should be called a differential pressure type flow meter. And the orifice plate is just one method of measuring flow rate in differential pressure flow meters. Other methods include wedge, Annubar, Venturi, etc.
A orifice plate is a throttling device; it cannot be called an orifice plate flow meter. A differential pressure flow meter is a flow meter that measures by utilizing a pressure difference signal generated by an orifice plate. The two cannot be confused.
The orifice plate can merely be considered a type of sensor among differential pressure flow meters. The concepts aren’t clearly distinguished.
The orifice plate is essentially a throttling element, also known as a flow sensor； Just use the accompanying pipeline transmitter for flow measurement – that’s essentially what a flow meter does. The principle behind it is the differential pressure principle, so your question doesn’t seem very meaningful to me. It’s just that Ba didn’t understand the concepts of the two
A differential pressure flow meter measures flow by utilizing the static pressure difference created by the obstruction of a throttling element, and the orifice plate is one of the three most commonly used basic throttling elements
It can be said that differential pressure flow meters include orifice plate flow meters, and the orifice plate flow meter is just one type of differential pressure flow meter. There are a great many types of differential pressure flow meters: orifice plates, barometric types (various types of bars, such as Anubar and Weibar), venturi tubes, elbow-type devices, wedge-shaped ones, V-cone types, and nozzles
Thank you all for your hard work! ! !
To be precise, the working principle of a differential pressure flow meter is to measure flow rate based on the hydrostatic pressure difference; the same is true for orifice plate flow meters. Orifice plate flow meters are simply a type of differential pressure flow meter, and there is little difference between them – only a difference in terminology.
Differential pressure flow meters are a general term; orifice plates are a type of differential pressure flow meter
Any device that measures flow rate by measuring differential pressure can be called a differential pressure flow meter. To measure differential pressure, a throttling element is necessary, and orifice plates are one type of such element. There are many other types of throttling elements as well, such as nozzles, baffles, Venturi tubes, cone tubes, and Wilo meters. The throttling device has two pressure tapping holes; by connecting them to a differential pressure transmitter via reverse pressure pipes, remote transmission is possible. Of course, there are also those without pressure tapping tubes; the gauge head and the throttling device are integrated together, and the principle remains the same.