Regulations on the leakage rate of machine seals for kettles

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This post was last edited by zjramble on 2018-4-11 21:47, based on HG/T 2269-2003 \"Technical Requirements for Mechanical Seals in Kettles\"； GB/T 24319-2009 \"Technical Requirements for High-Pressure Seals for Kettles\" ； The three standards HG/T 2099-2003 \"Test Specifications for Mechanical Seals Used in Kettles\" specify that for mechanical seals used in kettles, when the shaft diameter is ≤80 mm, the leakage rate should be ≤5 ml/h ； Shaft diameter > 80mm, leakage rate ≤ 8ml/h ； However, it also states that when the working medium is a toxic, flammable, and explosive gas, the leakage amount should be determined in accordance with relevant safety regulations. 1. Then, when the medium inside the tank is a toxic, flammable, or explosive gas, what standards should be followed regarding the amount of leakage? 2. As for upper agitation, when the upper part of the tank contains toxic, flammable, and explosive gases, what standard should be followed to determine the leakage amount?