GB/T 23682-2009

This standard specifies requirements for the design, construction, and installation of flexible pipe elements, vibration isolators, and expansion joints used in refrigerating systems and heat pumps. It is applied in industrial and commercial refrigeration, air conditioning, and heat pump applications to ensure safe operation under pressure and temperature variations while preventing leaks and mechanical stress. The standard is critical for engineers and installers designing systems that require flexibility to accommodate thermal expansion, vibration, and movement in piping networks.