pressure equipment

In order to distinguish it from general equipment (atmospheric pressure equipment), only containers that meet the following three conditions simultaneously are called pressure equipment:
(1) The working pressure (Note 1) is greater than or equal to 0.1Mpa (the working pressure refers to the maximum pressure that the top of the pressure vessel may reach under normal working conditions) (excluding hydrostatic pressure);
(2) The inner diameter (non-circular cross-section refers to its maximum size) is greater than or equal to 0.15m. The volume (V) is greater than or equal to 0.025 cubic meters, and the product of working pressure and volume is greater than or equal to 2.5MPa-L (volume refers to the geometric volume of the pressure vessel);
(3) The medium used is gas, liquefied gas, and liquid with a maximum working temperature higher than or equal to its standard boiling point.