【JST-013】Special thread for one-on-one Q&A on various control valves, temperature and pressure reducers
Thread Content
This post was last edited by Firefly on 2015-4-10 08:19. I am a valve designer; my areas of expertise include the calculation and design of various control valves, as well as temperature and pressure reducers, with a focus on valves designed for harsh operating conditions. As I have dealt with valves for a long time, if any of you have questions related to control valves – such as actuators or valve selection – (those who have doubts or need help are advised to provide as many details as possible), I will do my best to answer them based on what I know. There are mistakes in my reply; everyone, please try to correct them! There are wealth rewards! :lol:lol:lol:lol I hope to grow together with all my fellow sea friends, and have a happy day every day!
Yeah, it supports users to create threads; questions related to the valve industry can be asked here
Thank you so much! I’ve been spending a lot of time training new employees lately! :hug:
Has the guy done any research on the calculation of pressure reduction using supercritical fluids?
From the perspective of valves, this type of valve falls into the category of those designed for harsh operating conditions. Its main function is to reduce pressure; if a regular valve is used, it will not last more than a few days, as cavitation and erosion caused by high-pressure saturated water have a severe impact on the valve core and seat. When high-pressure saturated water is discharged directly into the atmosphere, calculations become necessary in this case
Besides control valves, does the guy have any experience with safety valves? Regarding the discharge aspect in supercritical fluid fire scenarios
I’m sorry about this; I provide the parameters for safety valves to specialized manufacturers of such valves. These valves require approval from agencies like the Safety Supervision Bureau before they can be used. Safety valves are designed to release pressure at full flow rate instantly, without any function for cutting off or regulating flow, and they may not even trigger an alarm even when they reach the end of their useful life. Manufacturing safety valves is not complicated, as it requires relatively low technical skill. Its throat area ensures that when overpressure occurs, the maximum flow rate in your pipeline can pass through without issue.
The key issue is that we need to specify the conditions for the safety valve now; otherwise, the procurement process cannot proceed, which is really problematic
The parameters are as follows: medium, maximum flow rate of the pipeline, temperature, pipeline size, and pipeline pressure – that’s all. I also inquired with Aerospace Petrochemicals about a safety valve just now
It means to get a bench and learn a bit; there are many things I’ve never heard of before, especially certain nouns. . . study*
Do you deal in plug valves? Last year, I also helped a friend deal with plug valves, referring to those from Flossel in Canada