What is the function of the frangible disk in the Freon bottle discharge system?

• A. The frangible disk ruptures to release contents when the squib is activated.
• B. It seals the bottle after discharge.
• C. It acts as a pressure regulator.
• D. It stores gas.

Answer: (A)

The frangible disk acts as a controlled weak point that keeps the Freon bottle sealed until the system is commanded to discharge. When the squib is activated, it provides the energy to rupture the disk, creating an opening that lets the high‑pressure Freon vent through the discharge path all at once. This design gives a rapid, one‑time release and prevents accidental discharge, while the disk itself is not meant to seal after discharge or to regulate pressure or store gas.