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Old K says every week – Talking about things in the petrochemical design industry, Post 57: What to do when there are many equipment connections? You may have experienced this: some devices have an extremely large number of connections, with a dozen or even dozens of interfaces on their top, resembling numerous sugar-coated skewers stuck there. Many reactors exhibit this phenomenon: piping is difficult, the space is cramped, and there isn’t enough room. Some reactors are also equipped with agitators, and the space needed for maintaining and lifting these agitators further reduces the available space. In such cases, it is recommended to use a single interface for those connections that can be combined. The diameter of this common interface should be one size larger than that of the largest individual interface. For example, the nitrogen inlet, vent port, safety valve port, pressure gauge port, etc., located at the top of the equipment, can all be connected through this single interface. By installing the nitrogen inlet, vent port, safety valve port, pressure gauge port, etc., side by side on the pipe connecting to this interface, space is saved and the overall appearance becomes neater and more orderly. There are also some liquid interfaces; if it has no impact, they can be combined and share a single interface. Some reactors have both internal coils and an external jacket, with numerous connections on the sides as well. For the connections located below the device’s lugs, it is particularly important to maintain a sufficient distance from these lugs in order to prevent contact with the frame beams. Tip: You can enter “Lao K’s Weekly Updates – Insights into the Petrochemical Design Industry” in the website’s search engine to view previous posts