Metallic piping system

The Metallic piping system is a pressure system on SkyTown, Elysia. It is active in Steambot Barracks on the first visit there in Metroid Prime 3: Corruption. It is a series of three pipes that diverge around a pair of containment doors in the center of the room, and converge near the Barracks' entrance door. The pipes provide pressure to lock security bars in front of this door and keep them in place until the pressure is released. This is done by ripping a number of safety release valves out of nearby Elysian recharge chambers with the Grapple Lasso. Samus does so after defeating the Steamlord, releasing the pressure and allowing her to leave the room.

Scan
"Metallic piping system can provide pressure to keep nearby security bars locked shut."