Can pipelines carrying liquid ammonia in steel cylinders be connected using hoses?
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May I ask, in fine chemical plants where liquid ammonia is used as a raw material and is stored in cylinders, can flexible hoses be used to connect the cylinders to the pipelines? According to GB50160-2008 (2018 edition), the use of hoses for connecting liquid ammonia pipelines is not permitted. If hoses cannot be used, what are some good alternative connection methods? Can universal joints be used?
Hoses cannot be used to connect liquid ammonia cylinders to pipes. In accordance with the GB50160-2008 (2018 edition) standard, liquid ammonia pipelines should be made of rigid materials to ensure safety. You may consider using flexible connectors or other types of rigid metal pipes for connections, to ensure the safety and stability of the piping system. It is recommended to use more reliable connection methods such as flange connections and welding. .
1. Connection using metal rigid pipes: Metal rigid pipes (such as seamless steel pipes, welded steel pipes, etc.) are used for connection to ensure firmness and sealing. Connecting metal rigid pipes requires appropriate methods such as welding or flange connection to meet technical and safety requirements. 2. Connection using universal pipes (metal universal filling systems): Universal pipes represent a safe and reliable method of connection, particularly suitable for the filling and transportation of hazardous chemicals such as liquid ammonia. It features strong flexibility, good sealing performance, and easy maintenance, and can meet connection requirements in various directions and angles. When using universal pipes, it is necessary to ensure that their material, specifications, and connection methods comply with relevant standards and regulations.
But I encountered a problem: when using universal pipes, the diameter of the cylinder outlet is very small, and it seems that the universal pipes are not a suitable match