If it belongs to the "simple pressure vessel safety and technical supervision regulations" of the parameters, you can do without a license.
Based on the parameters of your equipment, take a look at it:
AQSIQ on the revision of the "Special Equipment Catalog" Notice No. 114 of 2014
Pressure vessel
Pressure vessel, is a gas or liquid, bearing a certain pressure of the closed equipment, the scope of which is specified as the maximum working pressure of greater than or equal to 0.1MPa ( (gauge pressure) of gases, liquefied gases and liquids with a maximum operating temperature greater than or equal to the standard boiling point, volume greater than or equal to 30L and the inner diameter (non-circular cross-section refers to the maximum geometric dimensions of the inner boundary of the cross-section) is greater than or equal to 150mm of the stationary and mobile containers; containers with a nominal working pressure of greater than or equal to 0.2MPa (gauge pressure), and the product of the pressure and volume of greater than or equal to 1.0MPa?
Pressure containers are defined as gas or liquid, carrying a certain pressure. 1.0MPa?L gas, liquefied gases and standard boiling point equal to or less than 60 ℃ liquid cylinders; oxygen tank.
Simple Pressure Vessel Safety Technology Supervision Regulations TSG R0003-2007
Article 3 These regulations are applicable to simple pressure vessels that meet the following conditions:
(1) The vessel consists of a cylinder and a flat head, a convex head (excluding a spherical crown head), or consists of two convex heads;
(2) The main pressure elements such as cylinder, head and receiver are of the same type as the main pressure elements of the vessel;
(2) The main pressure elements such as cylinder, head and receiver are of the same size as the main pressure elements of the vessel; and oxygen tank. (ii) The materials of the main pressurized components such as cylinder, head and receiver are carbon steel or austenitic stainless steel;
(iii) The design pressure is less than or equal to 1.6 MPa;
(iv) The volume is less than or equal to 1,000 L;
(v) The product of the working pressure and the volume is greater than or equal to 2.5 MPa-L and is less than or equal to 1,000 MPa-L;
(vi) The working pressure is greater than or equal to 2.5 MPa-L and is less than or equal to 1,000 MPa-L; < /p>
(F) medium for air, nitrogen and medical distilled water evaporated from water vapor;
(VII) design temperature is greater than or equal to -20 ℃, the maximum operating temperature is less than or equal to 150 ℃;
(VIII) non-direct flame welded container.
Article 43 The use of units responsible for the use of simple pressure vessels safety management. In line with the scope of application of these regulations of simple pressure vessels, do not need to apply for the use of registration procedures. In the recommended life of the simple pressure vessel, do not need to "pressure vessel periodic inspection rules" for periodic inspection.