Regarding whether rubber expansion joints are considered pressure pipeline components
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Dear experts: According to the \"TSG D2001-2006 Rules for Licensing the Manufacturing of Pressure Pipeline Components\", other types of compensators are classified as pressure pipeline components and require a license for special equipment. The latest list of special equipment issued by the General Administration of Quality Supervision, Inspection and Quarantine also specifies that non-metallic expansion joints (code 75F0) fall under the category of special equipment. Is the rubber expansion joint considered a pressure pipeline component listed in the catalog of special equipment, that is, does it fall under the category of non-metallic expansion joints (code 75F0)? Is it required that the manufacturer possess a special equipment license?
When used in pressure pipelines, it is considered a pressure pipeline
If the pipeline in which this expansion joint is located is not a pressure pipeline, then is the expansion joint not a pressure component? Right?
Yeah, they’re not considered pressure pipelines, so they’re not subject to regulation. Manufacturers don’t necessarily need to have the necessary qualifications to produce pressure pipeline components, but to ensure quality, it’s better to choose manufacturers with such qualifications
Rubber expansion joints can withstand pressures of up to 1 kilogram; those that have rubber connectors are designed to handle pressure, while there are also non-metallic rubber expansion joints
Could you be more specific? Thank you.