What are the design guidelines of orifice meter?
What are the design guidelines of orifice meter?
Steps required to design an orifice plate or orifice plate flow meter:
- Identify the physical attributes of the piping system.
- Identify and accumulate data on process flow conditions.
- Identify and accumulate information on other requirements of the flow meter.
How thick should an orifice plate be?
According to ISO 5167, the β = 0.33 orifice plate should have maximum plate thickness of 5 mm with a throat edge thickness between 0.5 and 0.20 mm and a downstream bevel while the recommended plate thickness per A. G. A. 3 is 3 mm.
What is the working principle of orifice meter?
Basic Working Principle of an Orifice Meter The liquid or gas whose flow rate is to be determined is passed through the orifice plate. This creates a pressure drop across the orifice plate which varies with the flow rate, resulting in a differential pressure between the outlet and inlet segments.
What is the most common of orifice plate?
The most common orifice plate is the square-edged, concentric bored design shown below. This type of orifice plate is manufactured by machining a precise, straight hole in the middle of a thin metal plate.
How do you calculate orifice?
Divide the flow of the liquid by the velocity of the liquid to determine the area of the orifice in square feet. In the above example, you would divide 8 by 2. The total area of the orifice would be 4 square feet.
What is restriction orifice plate?
Orifice plate or restriction orifice is a device used for measuring volumetric flow rate in a pipe . Orifice plate works based on Bernoulli’s principle. Bernoulli’s equation states that pressure drop across the restriction orifice is directly proportional to the volumetric flow rate passing through the orifice plate.
What is an orifice plate?
An orifice plate is a thin plate with a hole in it, which is usually placed in a pipe. When a fluid (whether liquid or gaseous) passes through the orifice, its pressure builds up slightly upstream of the orifice but as the fluid is forced to converge to pass through the hole, the velocity increases and the fluid pressure decreases.