Page 12: of Marine Technology Magazine (March 2026)

LANDER LAB #18

APPLICATION NOTE:

Photo courtesy: Dr. Peter Worcester, Scripps Institution of Oceanography/UCSD

PRESSURE RELIEF VALVES AND PURGE PORTS

By Kevin Hardy, MTR Columnist, President, Global Ocean Design LLC ames Cameron’s second AVATAR movie introduced Graphically, the different parts are represented by the symbols: viewers to “The Way of Water.” It’s especially impor- When a PRV opens in a topside shipboard environment, in- tant for ocean engineers to “think like water.” Observe, terior overpressure generally vents into an air-