The cylinder itself may be leaking. Any damage or deterioration to the valves, ports, or body of the cylinder may result in gas leakage, thus affecting the filling effect. In this case, the cylinder needs to be carefully inspected to find the leak and repair or replace it.
There may be a problem with the inflation equipment. If the performance of the pump or filling station is not stable, or the filling pressure is not set properly, it may cause the cylinder not to be filled. In this case, you need to check the working condition and parameter settings of the filling equipment to make sure it is functioning properly.
Environmental factors may also affect the filling effect. For example, in a high or low temperature environment, the compressibility and fluidity of the gas will change, thus affecting the filling speed and final filling volume. Therefore, it is necessary to pay attention to the ambient temperature during inflation and try to select the appropriate temperature for the process.
Improper use can also be one of the reasons for underfilling a cylinder. For example, frequent opening and closing of the cylinder valve during the inflation process, or inflating too fast, may lead to unstable pressure inside the cylinder, thus affecting the inflation effect. In order to avoid this situation, we should read the operating instructions carefully before filling, and follow the standard operating procedures for filling.
In summary, air breathing apparatus cylinders are not inflated by a variety of reasons. In actual use, we should analyze and judge according to the specific situation, find out where the problem lies and take corresponding measures to solve it. At the same time, in order to ensure the normal use of equipment and personnel safety, we should also be regularly on the air respirator and related equipment maintenance and inspection, to ensure that it is in good working condition.