What component retains the nitrogen charge in a high rate of discharge container?

The component that retains the nitrogen charge in a high rate of discharge container is the breakable disk. This component is designed to maintain the integrity of the container under normal operating conditions by preventing the rapid release of the stored nitrogen gas.

In specific scenarios, when there is an abnormal rise in pressure within the container that exceeds safe operational limits, the breakable disk will rupture, allowing the excess pressure to escape. This protective feature ensures that the nitrogen charge is retained under normal circumstances, while also providing a safety mechanism to prevent potential over-pressurization that could lead to catastrophic failure of the container. Thus, the breakable disk serves a dual role of maintaining the charge and providing safety in the system.