Calculation of automatic control valves
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The process engineering team has proposed the use of air control valves; what information needs to be provided to the automation team so that they can carry out the calculations and make the appropriate selection?
Does anyone know? Please help~
Maximum flow rate, minimum flow rate, normal flow rate, pressure before the valve, pressure after the valve, the name and temperature of the medium, as well as the specific gravity or density of the medium – that’s all needed! Also, it’s important to decide whether electric or pneumatic power will be used. In the event of a failure in the air supply, should the valve remain open or closed? Does the actuator come with feedback functionality? Is explosion protection required? If you have any other questions, feel free to contact me! QQ: 928976489
Here is a website for you: http://www.cqhw.com/calculate%20online/calculate_online.aspx. It offers online calculation, which might be useful to you.
When selecting valves, process safety is the primary consideration; for safety reasons, pneumatic valves are generally chosen in such applications. Additionally, it is important to determine whether the control valve should remain open or closed in the event that the air supply is interrupted. Next is the selection of technical parameters, taking into account the following factors: maximum flow rate, minimum flow rate, normal flow rate, pressure before the valve, pressure after the valve, the name and temperature of the medium, and the density of the medium.