GB/T 23681-2009
ActiveRefrigerating systems and heat pumps - System flow diagrams and piping instrument diagrams - Layout and symbols
制冷系统和热泵 系统流程图和管路仪表图 绘图与符号
Application Summary AI generated
This standard specifies the layout and symbols for system flow diagrams and piping and instrument diagrams used in refrigerating systems and heat pumps. It is applied by engineers and technicians in the design, construction, and maintenance of refrigeration and heat pump equipment to ensure clear, consistent, and unambiguous technical documentation. The standard facilitates communication across the industry, including for commercial and industrial cooling and heating systems.
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GB 25131-2010
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GB/T 18835-2002
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Ducted air-conditioning(heat pump) units
GB/T 18517-2001
Terminology of refrigeration
GB/T 7778-2001
Number designation and safety classification of refrigerants
GB/T 7941-1987
Testing of refrigerating systems
Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.