I would like to ask the experts: which standard specifies that pumps without leaks should be used for highly hazardous media (such as shielded pumps and magnetic drive pumps)?
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I would like to ask the experts: for media that pose a high level of hazard, leak-free pumps (such as shielded pumps and magnetic drive pumps) should be used. Which specific standard specifies this? Thank you so much.
The specific specifications for selecting leak-free pumps (such as canned motors and magnetic drive pumps) may vary depending on the **region. In China, the regulations regarding the use of pump equipment can usually be found in engineering design manuals such as the \"Mechanical Equipment Design Manual\" or the \"Chemical Equipment Design Manual\". However, I cannot provide the exact source of the regulations, as the specific rules may depend on various factors such as the properties of the liquid (toxicity, corrosiveness, etc.), environmental conditions, and the potential level of hazard. For safety reasons, for extremely hazardous media, it is generally recommended to use leak-free pumps to prevent potential leaks. It is recommended that you consult the specific industry standards or contact the relevant departments or organizations directly to obtain more detailed and accurate information. .
Refer to SH/T3121.
Based on the properties of the material, pumps that can operate under appropriate process conditions should be selected to meet the requirements for long-term, safe operation and energy efficiency.
It doesn’t come from regulations, but rather from a rule issued by the former State Administration of Work Safety
SH/T3121 \"Code for Process Design of Petrochemical Plants\"
SH/T3121-2022 \"Code for Process Design of Petrochemical Plants\" 7.4 Pumps and Compressors 7.4.1 The type of pump should be selected reasonably in accordance with the physical properties of the medium to be transported, process parameters, and application requirements, following the principles outlined below: … e) For liquids that are extremely or highly toxic, belong to acute toxicity categories 1 or 2, are valuable, or require leak-free operation, shielded pumps, magnetic drive pumps, diaphragm pumps, or centrifugal pumps with double-end mechanical seals are preferred. QSY 06506.1-2016 Technical Specifications for Rotating Equipment in Refining and Petrochemical Engineering – Part 1: General Provisions. 5.1.3 The requirements regarding the properties of the medium (density, viscosity, chemical composition, corrosivity, solid content, vapor pressure, etc.) shall be met as follows: a) For pumps used to transport flammable, explosive, toxic, or valuable media, reliable shaft seals are required, or leak-free pumps should be used. …