Does a fully automatic self-cleaning filter fall under the category of pressure vessels?

Is the filter itself considered a pressure vessel?

It belongs to the category of containers, but to be subject to supervision, the following conditions must be met simultaneously: 1. The maximum operating pressure (Pw) (Note:) is greater than or equal to 0.1 MPa (excluding hydrostatic pressure; the same applies hereafter)； Note 1: For pressure vessels subjected to internal pressure, the maximum operating pressure refers to the highest pressure that may occur at the top of the vessel during normal use ； Note 2: For pressure vessels subjected to external pressure, the maximum operating pressure refers to the highest pressure that may occur at the top of the jacket during normal use of the pressure vessel. 2. The inner diameter (for non-circular cross-sections, this refers to the largest dimension of the cross-section) is greater than or equal to 0.15 m, and the volume (V) is greater than or equal to 0.03 m3 ； Note: Volume refers to the geometric volume of a pressure vessel, that is, the volume calculated from the dimensions specified in the design drawings (without considering manufacturing tolerances) and rounded off, without deducting the volume of internal fittings. 3. The medium is a gas, liquefied gas, or a liquid with a maximum operating temperature equal to or higher than its standard boiling point

Once the pressure is sufficient, it doesn’t matter if the volume also reaches that level