What is the board for the hole?
The hole for the hole is a device that measures the flow of fluid in the pipeline. Plates for the hole are usually round metal plates with a hole in the middle. The board itself is usually inserted between the ends of the two flange pipes on the system in which the flow of the flow is to be measured. Carbon steel is commonly used for hydrocarbons. Stainless steel is mainly used for more corrosive fluids. Chemical compatibility is important because corrosion can negatively affect performance. The sharp side of the board should be on the entrance side of the pipe. The beveled side is on the output side of the pipe. The hole for the hole must be installed in the right direction; Side geometry plays a big role in the way the liquid passes through the opening.
The hole for the hole measures the flow by related to the pressure and speed of the fluid on the input and output sides of the board. The fluid on the input side is forced to pass through the hole. Shortly after passing through the opening, the liquid reaches the maximum convergence point known as Vena Contract. At this point, speed and pressure tEcutins differ from what were on the input side of the pipe. Pressure and speed differences are used to calculate the flow through Bernoulli's principle.
For measuring differential pressure, a small pipe is installed on the input and output sides of the plate - sometimes known as "legs" - and are connected to the differential pressure meter. This tube must be free of debris or heavy fluids. The material other than the measured fluid in the pipe legs will damage the accuracy of the distinction of the pressure of ntial pressure.
Brays are commonly used to measure fluid flow because they are relatively cheap, easy to install, easily maintain and easily understand in the chemical processing industry. Plates for the hole do not have moving parts for maintenance. It can be expected that the typical accuracy of the hole meter will range from 90 to 95 percent. One of the disadvantages of the hole meters is that they can introduce high permanent pressure in the pipe system.