【Weekend Share-3】Can flexible hoses be used to connect pipes in chemical plants?
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This post was last edited by zhoudingshengs on 2024-12-14 07:38. 1. Can flexible hoses be used to connect pipes in chemical enterprises? 【Answer】Most can. 【Basis】Code for Fire Protection Design of Petrochemical Enterprises (GB50160-2008, 2018 edition), 6.2.25: The inlet and outlet pipes of storage tanks shall be equipped with flexible connections. 7.2.18 Pipelines for liquefied hydrocarbons, liquid chlorine, and liquid ammonia shall not be connected using hoses, and pipelines for flammable liquids shall not be connected using non-metallic hoses. Explanation of Article 7.2.18: Liquified hydrocarbons, liquid ammonia, liquid chlorine, etc., are highly hazardous in the event of a leak, and leaks are likely to occur at hose connections; therefore, it is stipulated that pipelines transporting these substances must not use hose connections. Non-metallic flexible hoses are prone to breaking due to high temperatures in fire accidents; therefore, it is stipulated that pipelines transporting flammable liquids shall not be connected using non-metallic flexible hoses, and metal flexible hoses may be used if necessary.
In chemical plants, hoses can generally be used for connecting pipes, but they must not be used for transporting substances such as liquefied hydrocarbons, liquid chlorine, and liquid ammonia. Furthermore, combustible liquid pipelines shall not be connected using non-metallic flexible hoses; metal flexible hoses may be used if necessary. .