What is the A1A2 pressure vessel, like the I class II container?
The A1 class pressure vessel, which is a type of pressure vessel, is a class III class Pressure vessel pressure rating (p) division of pressure vessel design Class code pressure range Low pressure L 0.1 MPa is less than p < 1.6 MPa Medium pressure M 1.6 MPa is not equal to p < 10MPa High pressure H 10MPa is less than or equal to p < 100MPa Ultra high voltage U p is greater than 100 mpa
the division of pressure vessel category Classification should be based on the characteristics of medium selection in accordance with the requirements of figure, and then according to the design pressure p (MPa) and volume V (L), mark the coordinate point, determine the type of container: type I, II, and IIIl containers Understand the two questions above and figure out your question: A1, A2 is the group that the pressure vessel divides according to the medium; Class I, II, and IIIl classes are categories of pressure vessels that are divided in their respective groups. For reference study. I want to be able to ask more questions.
To answer this question correctly, you must first understand the classification of pressure vessels 1, the pressure vessel is divided into two groups according to the characteristics of the medium. Namely A1 and A2 (1) the first group of dielectric: the toxic degree is extremely harmful, highly harmful chemical medium, explosive medium, liquefied gas. (2) the second medium: the medium except the first group. For the first group of media, the classification of the pressure vessel a-1, for the second medium, the pressure vessel's classification A minus 2.
The classification of the toxic and flammable medium in the pressure vessel may be based on the relevant provisions, or the following Is: The highest allowable concentration < 0.1 mg/m3 to extreme harm (Ⅰ level); The highest allowable concentration 0.1 ~ < 0.1 mg/m3 for highly hazard level (Ⅱ); The highest allowable concentration 1.0 ~ < 10 mg/m3, the moderate damage (Ⅲ level); The highest allowable concentration or 10 mg/m3, for mild toxicity of harmful medium (Ⅳ level). The lower limit of the mixture of medium and air is the lower limit of 10% or the limit of the explosion Quality. The A1 and A2 pressure vessels are the corresponding class, type 2 pressure vessels.
