What is an orifice plate flow meter?
The orifice plate flow meter is a type of differential pressure flow meter that is commonly used in clean liquid, gas, and stream mass flow measurement.
How does a orifice flow meter work?
It works on the Differential Pressure Measurement principle. 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 iso5167?
ISO 5167-1:2003 defines terms and symbols and establishes the general principles for methods of measurement and computation of the flowrate of fluid flowing in a conduit by means of pressure differential devices (orifice plates, nozzles and Venturi tubes) when they are inserted into a circular cross-section conduit …
Why do we use orifice plate?
An orifice plate is a device used for measuring flow rate, for reducing pressure or for restricting flow (in the latter two cases it is often called a restriction plate ).
Who built the first flowmeter?
The first large-scale Venturi meters to measure liquid flows were developed by Clemens Herschel, who used them to measure small and large flows of water and wastewater beginning at the very end of the 19th century.
What is the accuracy of an orifice plate flow meter?
The accuracy of an orifice plate differential pressure flowmeter that is fabricated and installed per applicable standards can be on the order of 0.60 percent of rate.
What is aga3?
Finds gas flow rate, orifice diameter and differential pressure in accordance with this standard. The volume flow rate at line conditions and standard conditions are found along with the energy and mass flow rates using line density, standard density and calorific value (heating value).
When was the flow meter invented?
Karl Kueppers is credited with developing the first true variable area flow meter. Designed and launched in 1908, the device was patented in Germany that same year. The initial function had to do with measuring water flow.
Who invented magnetic flow meter?
In 1952 the Dutch company Tobi-Meter introduced the first commercial magmeter. In 1962 the British scientist J.A. Shercliff published the “Theory of electromagnetic flow-measurement.” Today there are a few dominant global companies providing more than 200,000 magmeter instruments annually to all industries.
What is the length of a plate?
Steel sheets and plates are typical stocked in 36”, 48”, and 60” widths and 96”, 120”, and 144” lengths.
What is aga10?
This report outlines a method for the calculation of the speed of sound in natural gas and the individual components that make up natural gas. It calculates the entropy, enthalpy and C* coefficient for the sonic nozzels.
Who invented the flow meter?
David M. Potter 3d, an inventor, explorer and founder of the Potter Aeronautical Corporation of Union, N.J., died on Sept. 29 at Warren Hospital in Phillipsburg, N.J. He was 79 years old and lived in Martinsville, N.J. He invented a flow meter that measured the flow of liquids.
What is Magflow?
Published August 23, 2018. Electromagnetic flow meters (or magmeters) are a type of velocity or volumetric flow meter that operate pursuant to Faraday’s law of electromagnetic induction – which states that a voltage will be induced when a conductor moves through a magnetic field.
How does an orifice plate work on a flow meter?
When an orifice plate is placed in a pipeline carrying fluid, the orifice plate is installed perpendicular to the flow of the fluid to be measured. As all DP flowmeters, Orifice plate makes a restriction in the flow. This restriction causes a pressure drop across the plate.
What are the disadvantages of using an orifice plate meter?
Concentric orifice plates meter are not recommended for multi-phase fluids in horizontal lines because the secondary phase can build up around the upstream edge of the plate. In extreme cases, this can clog the opening, or it can change the flow pattern, creating measurement error.
What is an orifice in fluid mechanics?
An orifice is simply a smooth disc with a round, sharp-edged inflow aperture and mounting rings. When an orifice plate is placed in a pipeline carrying fluid, the orifice plate is installed perpendicular to the flow of the fluid to be measured.
What are the different types of orifice meters?
There are two main types of orifices for various applications: This is the most common and basic type of orifice meter. This device is typically a thin concentric sharp-edged orifice plate. Because of the simplicity, it is inexpensive to manufacture to very close tolerances.