Does the air compressor belong to special equipment?

air compressor tank belongs to the special equipment (8 categories) in the pressure vessel.

Regulations on Safety Supervision of Special Equipment

article 2 The term "special equipment" as mentioned in these Regulations refers to boilers, pressure vessels (including gas cylinders, the same below), pressure pipes, elevators, lifting appliances, passenger ropeways, large amusement facilities and special motor vehicles in the field (factory) that involve life safety and are more dangerous.

(II) pressure vessel refers to the closed equipment containing gas or liquid and bearing a certain pressure. Its scope is specified as the fixed container and movable container for gas, liquefied gas and liquid with the maximum working pressure greater than or equal to 0.1MPa (gauge pressure) and the product of pressure and volume greater than or equal to 2.5MPa · L; gas cylinders containing gas, liquefied gas and liquid with nominal working pressure greater than or equal to 0.2MPa (gauge pressure) and the product of pressure and volume greater than or equal to 1.0MPa · L; oxygen chamber, etc.