What Is a Pressure Vessel?

A pressure vessel refers to a closed device that contains a gas or liquid and carries a certain pressure.

Definition of pressure vessel

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A pressure vessel refers to a closed device that contains a gas or liquid and carries a certain pressure.

According to the "Special Equipment Safety Law of the People's Republic of China" and "Special Equipment Safety Supervision Regulations", the General Administration of Quality Supervision, Inspection and Quarantine has revised the "Special Equipment Catalog", which has been approved and implemented by the State Council. At the same time, the "Notice on Promulgating the Catalogue of Special Equipment" (Guo Qin Pan [2004] No. 31) and the Notice on Supplementing the Catalogue of Special Equipment (Guo Qin Jian [2010] No. 22) were abolished. The "Special Equipment Catalog" is interpreted by the General Administration of Quality Supervision, Inspection and Quarantine.

Its range is specified for gases, liquefied gases and liquids with a maximum operating pressure greater than or equal to 0.1 MPa (gauge pressure), liquids with a maximum operating temperature greater than or equal to the standard boiling point, a volume greater than or equal to 30 L, and an inner diameter (non-circular cross-section refers to Boundary maximum geometric size) fixed or mobile vessels greater than or equal to 150 mm; gas and liquefied gas containing nominal working pressure greater than or equal to 0.2 MPa (gauge pressure) and the product of pressure and volume greater than or equal to 1.0 MPa · L And cylinders with liquids at or below 60 ° C; oxygen tanks.