NEWS CENTER
News Center
Instructions for Replacing the Cylinder of a Positive-Pressure Oxygen Respirator
It is extremely important to replace the oxygen cylinder of a positive-pressure respirator in a timely manner. First, in environments such as mines or disaster-stricken areas, it is crucial to carefully time the replacement of the oxygen cylinder. During use, if the positive-pressure respirator experiences excessive oxygen consumption or air leakage due to factors such as excessive physical activity by the user, an ill-fitting mask, or loose connections, the cylinder can be replaced once the underlying issue has been resolved. However, if the low-pressure system or high-pressure pipeline of the positive-pressure respirator suffers a major leak that cannot be repaired, replacing the cylinder is strictly prohibited. Instead, you should immediately switch to a backup respirator or adopt manual supplementary gas supply to quickly evacuate the disaster area. Once the respirator’s usage time exceeds its rated effective protection duration, replacing the cylinder to extend its operational life is not permitted, as this could lead to serious consequences such as poisoning.
Secondly, regarding the currently available positive-pressure oxygen respirators in China, while there is a common method for replacing the oxygen cylinder, numerous issues still remain. For example, when replacing the oxygen cylinder of a positive-pressure respirator in a disaster area, the usual procedure is as follows: The person whose cylinder is being replaced stands with their back to the replacement operator, adopting a squatting or kneeling position. The replacement operator removes the instrument’s outer casing to troubleshoot any malfunctions, then presses the manual replenishment valve to open the exhaust valve, subsequently closes the oxygen cylinder valve, removes the old oxygen cylinder, unscrews the protective cap from the spare cylinder, and finally installs the spare cylinder. Afterward, the replacement operator opens the cylinder valve, uses the manual replenishment valve to refill the cylinder, and then reattaches the outer casing. However, during the cylinder replacement process, several problems arise: First, the personnel replacing the cylinder cannot do it themselves and must rely on assistance from others, leading to unnecessary labor costs and potentially delaying emergency rescue operations. Moreover, as can be seen from the above-mentioned steps, the procedure is rather cumbersome and time-consuming. Additionally, this process poses certain safety risks. The entire replacement procedure requires skilled and rapid execution; otherwise, the person whose cylinder is being replaced may experience a sensation of suffocation.
Afterward, given the issues inherent in the conventional gas cylinder replacement process, we would like to introduce a new method for replacing gas cylinders to users. The specific steps are as follows: First, press the manual refill valve to open the vent valve, then close the cylinder valve. Next, depress the manual refill valve to relieve pressure. Quickly insert the quick-connect male connector from the spare cylinder into the female connector. Then, open the cylinder valve to supply gas, and finally, snap the locking clip into the corresponding position on the female connector.
In summary, the newly improved method for replacing cylinders in positive-pressure oxygen respirators is quick, highly efficient, and more suitable and effective for personnel. This method—using high-pressure pneumatic quick-connect fittings to replace cylinders—enables rapid and convenient cylinder changes in special environments such as disaster relief and emergency rescue operations, thereby reducing losses of both property and personnel.
Relevant documents
Previous page
Related News
Email:
Company address:
Building 6, Lingang Industrial Park Innovation and Entrepreneurship Incubation Base, Xiaochi Town, Huangmei County, Huanggang City, Hubei Province, China
Get your fire safety plan quickly—our customer will contact you as soon as possible!
*Note: Please ensure that the information you provide is accurate. We will contact you as soon as possible.