Which type of valve can be removed without interrupting flow?
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Question: For the selection of main valves in long-distance pipelines, which type of valve can be removed and repaired without interrupting pipeline operation?
A top-mounted ball valve seems to work; please forgive me for this suggestion
Top-mounted valves allow for maintenance of the internal components without having to remove the valve body from the pipeline; however, it is necessary to shut off the pipeline or divert it to a bypass. This is possible for many valves when only the packing needs to be replaced, though not as easily as with gate valves due to the presence of an upper seal. It is not possible for such valves when the valve seat needs to be replaced.:handshake
It is generally not recommended to remove valves under pressure.
What is the medium conveyed by the poster? If it’s oil, Cameron has a valve that allows the sealing valve plate to be replaced without interrupting the flow. Feel free to contact us if needed; QQ: 54146306
Ugh, I don’t know which user would dare to replace the valve plate online; if it doesn’t seal properly, serious problems could arise.:lol
http://www.kelite-valve.com/cn/data_qx/upload/news/2007101815422366.jpg
Only a bypass should be designed in the process flow design. It is impossible to remove any valve without interrupting flow, unless there is a bypass. There are indeed cases of continuous maintenance without interruption, but it also depends on which part is being repaired. Gate valves, ball valves, and similar types can have their sealing components maintained without interrupting flow. :Lol, advanced orifice plate valves allow for maintenance of the internal orifice plate without interrupting flow, as the valve is divided into upper and lower chambers; the orifice plate can be lifted from the lower chamber to the upper chamber, isolated, and then removed for maintenance, so there is no need to stop the flow. But it’s also impossible to remove the valve.