What is the purpose of blowdown in medical gas piping systems?

The purpose of blowdown in medical gas piping systems is to remove contamination before testing. This process is crucial because it ensures that any impurities or residual substances within the piping do not interfere with the quality and safety of the medical gases being delivered to patients. Contaminants can include moisture, particulates, or other gases that could pose a risk to patient safety or affect the performance of medical devices that rely on the purity of these gases.

During blowdown, the system is purged to clear out any unwanted materials, thereby preparing it for proper testing and ensuring compliance with health and safety standards. This step is a fundamental part of maintaining the integrity and reliability of medical gas systems, as it directly impacts the efficacy of the gases administered to patients.