What kind of prototype products are generally used for the A2 pressure vessel manufacturing certificate nowadays?
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RT, our company is now seeking to obtain the A2 pressure vessel manufacturing certificate. Based on the relevant regulations, what type of prototype product would be suitable for design? In the past, we used liquid ammonia and liquid chlorine tanks
As long as it can be classified as a Category III container, that’s fine.
Generally, medium-pressure vessels made of the first group of materials are used. In May, one company manufactured a CO storage tank as a prototype; it was made of Q345R material and did not require heat treatment, which helped save some costs: lol
There are mostly liquid ammonia storage tanks and liquefied petroleum gas storage tanks.
An ammonia liquid intermediate tank with a diameter of φ2000, a design pressure of 2.5 MPa and a design temperature of 50°C, or an ammonia liquid flash tank with a diameter of φ1400, a design pressure of 3.5 MPa and a design temperature of 50°C, can also be used as evidence for certification purposes.
It is sufficient to use Class III medium and low pressure containers; the specific products can be determined by oneself
A2 belongs to the third category of low and medium pressure vessels; the specific products can be determined according to the requirements of potential customers.
Our unit uses 50-cubic-meter liquefied petroleum gas storage tanks made of Q345R material; they require 100% flaw detection as well as heat treatment, which is too troublesome.
There are mostly liquid ammonia storage tanks and liquefied petroleum gas storage tanks.